certstmt_10dccmt21bb312211.htm - Generated by SEC Publisher for SEC Filing

Benchmark 2021-B31 Mortgage Trust

Commercial Mortgage Pass Through Certificates, Series 2021-B31

STATEMENT TO NOTEHOLDERS

November 18, 2022


TRANSACTION PARTIES


Depositor:	Citigroup Commercial Mortgage Securities Inc.
Master Servicer:	Midland Loan Services, a Division of PNC Bank N.A.
Special Servicer:	Rialto Capital Advisors, LLC
Asset Representations Reviewer /
	Pentalpha Surveillance LLC.
Operating Advisor:
Trustee:	Wilmington Trust, National Association
Certificate Administrator:	Citibank, N.A.




	Danny Lee	Citibank, Agency and Trust
	(212) 816-4936	388 Greenwich Street Trading, 4th Floor
danny1.lee@citi.com		New York, NY 10013


TABLE OF CONTENTS


1	.	Distribution Summary	2
1.1	.	Summary	2
1.2	.	Factors	3
1.3	.	Interest Detail	4
1.4	.	Interest Shortfall Detail	5
1.5	.	Principal Detail	6
2	.	Reconciliation Detail	7
3	.	Other Information	8
4	.	Stratification Detail	9
5	.	Mortgage Loan Detail	14
6	.	NOI Detail	16
7	.	Delinquency Loan Detail	18
8	.	Collateral Performance Delinquency and Loan Status Detail	19
9	.	Appraisal Reduction Detail	20
10	.	Historical Appraisal Reduction Detail	21
11	.	Loan Modification Detail	22
12	.	Historical Loan Modification Detail	23
13	.	Specially Serviced Loan Detail	24
14	.	Historical Specially Serviced Loan Detail	25
15	.	Unscheduled Principal Detail	26
16	.	Historical Unscheduled Principal Detail	27
17	.	Liquidated Loan Detail	28
18	.	Historical Liquidated Loan Detail	29
19	.	CREFC Investor Reporting Package Legends	30
20	.	Notes	31


Reports Available at sf.citidirect.com	v. 21.09.28	Page 1 of 31	© Copyright 2022 Citigroup

Benchmark 2021-B31 Mortgage Trust

Commercial Mortgage Pass Through Certificates, Series 2021-B31

DISTRIBUTION SUMMARY

November 18, 2022


1
2
					Accrual		PPP, YM, Other				Non-Cash
	Original	Prior	Pass-Through		Day	Interest	Amounts	Principal	Total	Realized	Balance	Current
Class	Balance	Balance	Rate		Count	Distributed	Distributed	Distributed	Distributed	Loss	Change	Balance

A-1	19,800,000.00	17,384,520.89	1.357000	%	30/360	19,659.00	-	236,383.79	256,042.79	-	-	17,148,137.10
A-2	138,050,000.00	138,050,000.00	2.588000	%	30/360	297,727.83	-	-	297,727.83	-	-	138,050,000.00
A-3	23,220,000.00	23,220,000.00	2.703000	%	30/360	52,303.05	-	-	52,303.05	-	-	23,220,000.00
A-4	215,000,000.00	215,000,000.00	2.420000	%	30/360	433,583.33	-	-	433,583.33	-	-	215,000,000.00
A-5	575,676,000.00	575,676,000.00	2.669000	%	30/360	1,280,399.37	-	-	1,280,399.37	-	-	575,676,000.00
A-AB	23,526,000.00	23,526,000.00	2.615000	%	30/360	51,267.08	-	-	51,267.08	-	-	23,526,000.00
A-S	142,182,000.00	142,182,000.00	2.892000	%	30/360	342,658.62	-	-	342,658.62	-	-	142,182,000.00
B	63,981,000.00	63,981,000.00	2.748000	%	30/360	146,516.49	-	-	146,516.49	-	-	63,981,000.00
C	60,428,000.00	60,428,000.00	3.195000	%	30/360	160,889.55	-	-	160,889.55	-	-	60,428,000.00
D	37,322,000.00	37,322,000.00	2.250000	%	30/360	69,978.75	-	-	69,978.75	-	-	37,322,000.00
E	26,659,000.00	26,659,000.00	2.250000	%	30/360	49,985.63	-	-	49,985.63	-	-	26,659,000.00
F	26,660,000.00	26,660,000.00	2.250000	%	30/360	49,987.50	-	-	49,987.50	-	-	26,660,000.00
G	14,218,000.00	14,218,000.00	2.250000	%	30/360	26,658.75	-	-	26,658.75	-	-	14,218,000.00
H	55,095,655.00	55,095,655.00	2.250000	%	30/360	103,132.39	-	-	103,132.39	-	-	55,095,655.00
R	-	-	0.000000	%	30/360	-	-	-	-	-	-	-
S	-	-	0.000000	%	30/360	-	-	-	-	-	-	-
VRR Interest	74,832,509.00	74,705,378.48	0.000000	%	30/360	218,239.75	-	12,441.25	230,681.00	-	-	74,692,937.23
Total	1,496,650,164.00	1,494,107,554.37				3,302,987.09	-	248,825.04	3,551,812.13	-	-	1,493,858,729.33

Notional
X-A	1,137,454,000.00	1,135,038,520.89	0.886354	%	30/360	838,371.78	-	-	838,371.78	-	-	1,134,802,137.10
X-B	124,409,000.00	124,409,000.00	0.540635	%	30/360	56,049.93	-	-	56,049.93	-	-	124,409,000.00
X-D	63,981,000.00	63,981,000.00	1.255752	%	30/360	66,953.58	-	-	66,953.58	-	-	63,981,000.00
X-F	26,660,000.00	26,660,000.00	1.255752	%	30/360	27,898.63	-	-	27,898.63	-	-	26,660,000.00
X-G	14,218,000.00	14,218,000.00	1.255752	%	30/360	14,878.57	-	-	14,878.57	-	-	14,218,000.00
X-H	55,095,655.00	55,095,655.00	1.255752	%	30/360	57,655.42	-	-	57,655.42	-	-	55,095,655.00
Total	1,421,817,655.00	1,419,402,175.89				1,061,807.91	-	-	1,061,807.91	-	-	1,419,165,792.10

Grand Total	1,496,650,164.00	1,494,107,554.37				4,364,795.00	-	248,825.04	4,613,620.04	-	-	1,493,858,729.33


Reports Available at sf.citidirect.com	v. 21.09.28	Page 2 of 31	© Copyright 2022 Citigroup

Benchmark 2021-B31 Mortgage Trust

Commercial Mortgage Pass Through Certificates, Series 2021-B31

DISTRIBUTION SUMMARY - FACTORS

November 18, 2022


					PPP, YM, Other				Non-Cash
			Record	Interest	Amounts	Principal	Total	Realized	Balance	Current
Class	CUSIP		Date	Distributed	Distributed	Distributed	Distributed	Loss	Change	Balance

A-1	08163	MAA5	10/31/2022	0.99287879	-	11.93857525	12.93145404	-	-	866.06753030
A-2	08163	MAB3	10/31/2022	2.15666664	-	-	2.15666664	-	-	1,000.00000000
A-3	08163	MAC1	10/31/2022	2.25250000	-	-	2.25250000	-	-	1,000.00000000
A-4	08163	MAD9	10/31/2022	2.01666665	-	-	2.01666665	-	-	1,000.00000000
A-5	08163	MAE7	10/31/2022	2.22416667	-	-	2.22416667	-	-	1,000.00000000
A-AB	08163	MAF4	10/31/2022	2.17916688	-	-	2.17916688	-	-	1,000.00000000
A-S	08163	MAH0	10/31/2022	2.41000000	-	-	2.41000000	-	-	1,000.00000000
B	08163	MAJ6	10/31/2022	2.29000000	-	-	2.29000000	-	-	1,000.00000000
C	08163	MAK3	10/31/2022	2.66250000	-	-	2.66250000	-	-	1,000.00000000
D	08163MAW7 U0744XAF2		10/31/2022	1.87500000	-	-	1.87500000	-	-	1,000.00000000
E	08163MAY3 U0744XAG0		10/31/2022	1.87500019	-	-	1.87500019	-	-	1,000.00000000
F	08163MBA4 U0744XAH8		10/31/2022	1.87500000	-	-	1.87500000	-	-	1,000.00000000
G	08163MBC0 U0744XAJ4		10/31/2022	1.87500000	-	-	1.87500000	-	-	1,000.00000000
H	08163MBE6 U0744XAK1		10/31/2022	1.87187878	-	-	1.87187878	-	-	1,000.00000000
R	08163	MBJ5	10/31/2022	-	-	-	-	-	-	-
S	00163	MBH9	10/31/2022	-	-	-	-	-	-	-
VRR Interest	08163	MBM8	10/31/2022	2.91637625	-	0.16625462	3.08263087	-	-	998.13487785
X-A	08163	MAG2	10/31/2022	0.73705994	-	-	0.94487827	-	-	997.66859768
X-B	08163MAL1 U0744XAA3		10/31/2022	0.45052954	-	-	0.45052954	-	-	1,000.00000000
X-D	08163MAN7 U0744XAB1		10/31/2022	1.04646036	-	-	1.04646036	-	-	1,000.00000000
X-F	08163MAQ0 U0744XAC9		10/31/2022	1.04646024	-	-	1.04646024	-	-	1,000.00000000
X-G	08163MAS6 U0744XAD7		10/31/2022	1.04646012	-	-	1.04646012	-	-	1,000.00000000
X-H	08163MAU1 U0744XAE5		10/31/2022	1.04646038	-	-	1.04646038	-	-	1,000.00000000


Reports Available at sf.citidirect.com	v. 21.09.28	Page 3 of 31	© Copyright 2022 Citigroup

Benchmark 2021-B31 Mortgage Trust

Commercial Mortgage Pass Through Certificates, Series 2021-B31

DISTRIBUTION INFORMATION - INTEREST DETAIL

November 18, 2022


			Rate					Interest			Shortfall				Paid
							Accrual			Non	Carry	Basis		Carry
Class	Uncapped Capped				Next		Dates	Accrued	Deferred	Recovered	Forward	Risk	Accrued	Forward		Basis Risk	Total

A-1	1.35700	%	1.35700	%	1.35700	%	10/01-10/31	19,659.00	-	-	-	-	19,659.00	-		-	19,659.00
A-2	2.58800	%	2.58800	%	2.58800	%	10/01-10/31	297,727.83	-	-	-	-	297,727.83	-		-	297,727.83
A-3	2.70300	%	2.70300	%	2.70300	%	10/01-10/31	52,303.05	-	-	-	-	52,303.05	-		-	52,303.05
A-4	2.42000	%	2.42000	%	2.42000	%	10/01-10/31	433,583.33	-	-	-	-	433,583.33	-		-	433,583.33
A-5	2.66900	%	2.66900	%	2.66900	%	10/01-10/31	1,280,399.37	-	-	-	-	1,280,399.37	-		-	1,280,399.37
A-AB	2.61500	%	2.61500	%	2.61500	%	10/01-10/31	51,267.08	-	-	-	-	51,267.08	-		-	51,267.08
A-S	2.89200	%	2.89200	%	2.89200	%	10/01-10/31	342,658.62	-	-	-	-	342,658.62	-		-	342,658.62
B	2.74800	%	2.74800	%	2.74800	%	10/01-10/31	146,516.49	-	-	-	-	146,516.49	-		-	146,516.49
C	3.19500	%	3.19500	%	3.19500	%	10/01-10/31	160,889.55	-	-	-	-	160,889.55	-		-	160,889.55
D	2.25000	%	2.25000	%	2.25000	%	10/01-10/31	69,978.75	-	-	-	-	69,978.75	-		-	69,978.75
E	2.25000	%	2.25000	%	2.25000	%	10/01-10/31	49,985.63	-	-	-	-	49,985.63	-		-	49,985.63
F	2.25000	%	2.25000	%	2.25000	%	10/01-10/31	49,987.50	-	-	-	-	49,987.50	-		-	49,987.50
G	2.25000	%	2.25000	%	2.25000	%	10/01-10/31	26,658.75	-	-	-	-	26,658.75	-		-	26,658.75
H	2.25000	%	2.25000	%	2.25000	%	10/01-10/31	103,304.35	-	-	174.03	-	103,132.39	-		-	103,132.39
R	0.00000	%	0.00000	%	0.00000	%	10/01-10/31	-	-	-	-	-	-	-		-	-
S	0.00000	%	0.00000	%	0.00000	%	10/01-10/31	-	-	-	-	-	-	-		-	-
VRR Interest	0.00000	%	0.00000	%	0.00000	%	10/01-10/31	218,239.75	-	-	-	-	218,239.75	-		-	218,239.75
Total								3,303,159.05	-	-	174.03	-	3,302,987.09	-		-	3,302,987.09

Notional
X-A	0.77577	%	0.88635	%	0.88635	%	10/01-10/31	838,371.78	-	-	-	-	838,371.78	-		-	838,371.78
X-B	0.42737	%	0.54064	%	0.54064	%	10/01-10/31	56,049.93	-	-	-	-	56,049.93	-		-	56,049.93
X-D	1.14249	%	1.25575	%	1.25575	%	10/01-10/31	66,953.58	-	-	-	-	66,953.58	-		-	66,953.58
X-F	1.14249	%	1.25575	%	1.25575	%	10/01-10/31	27,898.63	-	-	-	-	27,898.63	-		-	27,898.63
X-G	1.14249	%	1.25575	%	1.25575	%	10/01-10/31	14,878.57	-	-	-	-	14,878.57	-		-	14,878.57
X-H	1.14249	%	1.25575	%	1.25575	%	10/01-10/31	57,655.42	-	-	-	-	57,655.42	-		-	57,655.42
Total								1,061,807.91	-	-	-	-	1,061,807.91	-		-	1,061,807.91

Grand Total								4,364,966.96	-	-	174.03	-	4,364,795.00	-		-	4,364,795.00


Reports Available at sf.citidirect.com	v. 21.09.28	Page 4 of 31	© Copyright 2022 Citigroup

Benchmark 2021-B31 Mortgage Trust

Commercial Mortgage Pass Through Certificates, Series 2021-B31

DISTRIBUTION INFORMATION - INTEREST SHORTFALL DETAIL

November 18, 2022


	Non-Recov Shortfall				Carry Forward Interest					Basis Risk Shortfall
			Other
Class	PPIS	SSRA	Shortfall	Prior	Int. on Prior	New	Paid	Outstanding	Prior	Int. on Prior	New	Paid	Outstanding

A-1	-	-	-	-	-	-	-	-	-	-	-	-	-
A-2	-	-	-	-	-	-	-	-	-	-	-	-	-
A-3	-	-	-	-	-	-	-	-	-	-	-	-	-
A-4	-	-	-	-	-	-	-	-	-	-	-	-	-
A-5	-	-	-	-	-	-	-	-	-	-	-	-	-
A-AB	-	-	-	-	-	-	-	-	-	-	-	-	-
A-S	-	-	-	-	-	-	-	-	-	-	-	-	-
B	-	-	-	-	-	-	-	-	-	-	-	-	-
C	-	-	-	-	-	-	-	-	-	-	-	-	-
D	-	-	-	-	-	-	-	-	-	-	-	-	-
E	-	-	-	-	-	-	-	-	-	-	-	-	-
F	-	-	-	-	-	-	-	-	-	-	-	-	-
G	-	-	-	-	-	-	-	-	-	-	-	-	-
H	-	-	-	1,103.45	2.07	171.96	-	1,277.48	-	-	-	-	-
R	-	-	-	-	-	-	-	-	-	-	-	-	-
S	-	-	-	-	-	-	-	-	-	-	-	-	-
VRR Interest	-	-	-	-	-	-	-	-	-	-	-	-	-
Total	-	-	-	1,103.45	2.07	171.96	-	1,277.48	-	-	-	-	-

Notional
X-A	-	-	-	-	-	-	-	-	-	-	-	-	-
X-B	-	-	-	-	-	-	-	-	-	-	-	-	-
X-D	-	-	-	-	-	-	-	-	-	-	-	-	-
X-F	-	-	-	-	-	-	-	-	-	-	-	-	-
X-G	-	-	-	-	-	-	-	-	-	-	-	-	-
X-H	-	-	-	-	-	-	-	-	-	-	-	-	-
Total	-	-	-	-	-	-	-	-	-	-	-	-	-

Grand Total	-	-	-	1,103.45	2.07	171.96	-	1,277.48	-	-	-	-	-


Reports Available at sf.citidirect.com	v. 21.09.28	Page 5 of 31	© Copyright 2022 Citigroup

Benchmark 2021-B31 Mortgage Trust

Commercial Mortgage Pass Through Certificates, Series 2021-B31

DISTRIBUTION INFORMATION - PRINCIPAL DETAIL

November 18, 2022


				Realized Loss/	Non-Cash		Cumulative
	Prior	Principal	Accreted	(Recovery Prin	Balance	Current	Realized	Class %		Class %		Sub %		Sub %
Class	Balance	Distributed	Principal	Applied)	Change	Balance	Loss	Original		Current		Original		Current

A-1	17,384,520.89	236,383.79	-	-	-	17,148,137.10	-	1.32	%	1.15	%	30.00	%	30.06	%
A-2	138,050,000.00	-	-	-	-	138,050,000.00	-	9.22	%	9.24	%	30.00	%	30.06	%
A-3	23,220,000.00	-	-	-	-	23,220,000.00	-	1.55	%	1.55	%	30.00	%	30.06	%
A-4	215,000,000.00	-	-	-	-	215,000,000.00	-	14.37	%	14.39	%	30.00	%	30.06	%
A-5	575,676,000.00	-	-	-	-	575,676,000.00	-	38.46	%	38.54	%	30.00	%	30.06	%
A-AB	23,526,000.00	-	-	-	-	23,526,000.00	-	1.57	%	1.57	%	30.00	%	30.06	%
A-S	142,182,000.00	-	-	-	-	142,182,000.00	-	9.50	%	9.52	%	20.00	%	20.04	%
B	63,981,000.00	-	-	-	-	63,981,000.00	-	4.27	%	4.28	%	15.50	%	15.53	%
C	60,428,000.00	-	-	-	-	60,428,000.00	-	4.04	%	4.05	%	11.25	%	11.27	%
D	37,322,000.00	-	-	-	-	37,322,000.00	-	2.49	%	2.50	%	8.63	%	8.64	%
E	26,659,000.00	-	-	-	-	26,659,000.00	-	1.78	%	1.78	%	6.75	%	6.76	%
F	26,660,000.00	-	-	-	-	26,660,000.00	-	1.78	%	1.78	%	4.88	%	4.88	%
G	14,218,000.00	-	-	-	-	14,218,000.00	-	0.95	%	0.95	%	3.88	%	3.88	%
H	55,095,655.00	-	-	-	-	55,095,655.00	-	3.68	%	3.69	%	0.00	%	0.00	%
R	-	-	-	-	-	-	-	0.00	%	0.00	%	0.00	%	0.00	%
S	-	-	-	-	-	-	-	0.00	%	0.00	%	0.00	%	0.00	%
VRR Interest	74,705,378.48	12,441.25	-	-	-	74,692,937.23	-	5.00	%	5.00	%	0.00	%	0.00	%
Total	1,494,107,554.37	248,825.04	-	-	-	1,493,858,729.33	-	99.98	%	100.00	%	250.89	%	251.34	%


Reports Available at sf.citidirect.com	v. 21.09.28	Page 6 of 31	© Copyright 2022 Citigroup

Benchmark 2021-B31 Mortgage Trust

Commercial Mortgage Pass Through Certificates, Series 2021-B31

RECONCILIATION DETAIL

November 18, 2022


SOURCE OF FUNDS			ALLOCATION OF FUNDS

Interest Funds Available			Scheduled Fees
Scheduled Interest	4,381,114.43		Servicing Fee	6,514.74
Prepayment Interest Shortfall	0.00		Trustee/Certificate Administrator Fee	7,590.87
Interest Adjustments	0.00		Operating Advisor Fee	1,067.86
ASER Amount	0.00		Asset Representations Reviewer Ongoing Fee	321.65
Realized Loss in Excess of Principal Balance	0.00		CREFC Intellectual Property Royalty License Fee	643.29
Total Interest Funds Available		4,381,114.43	Total Scheduled Fees		16,138.41
Principal Funds Available			Additional Fees, Expenses, etc.
Scheduled Principal	248,825.04		Additional Servicing Fee	0.00
Unscheduled Principal Collections	0.00		Special Servicing Fee	0.00
Net Liquidation Proceeds	0.00		Work-out Fee	0.00
Repurchased Principal	0.00		Liquidation Fee	0.00
Substitution Principal	0.00		Trust Fund Expenses	0.00
Other Principal	0.00		Trust Advisor Expenses	0.00
			Reimbursement of Interest on Advances to the Servicer	181.02
Total Principal Funds Available		248,825.04
			Borrower Reimbursable Trust Fund Expenses	0.00
Other Funds Available
			Other Expenses	0.00
Yield Maintenance Charges	0.00
Withdrawal of Withheld Amounts from the Interest Reserve			Total Additional Fees, Expenses, etc.		181.02
Account	0.00
			Distributions
Deposit of Withheld Amounts to the Interest Reserve Account	0.00
			Interest Distribution	4,364,795.00
Total Other Funds Available		0.00	Principal Distribution	248,825.04
			Yield Maintenance Charge Distribution	0.00
			Total Distributions		4,613,620.04




Total Funds Available		4,629,939.47	Total Funds Allocated		4,629,939.47


Reports Available at sf.citidirect.com	v. 21.09.28	Page 7 of 31	© Copyright 2022 Citigroup

Benchmark 2021-B31 Mortgage Trust

Commercial Mortgage Pass Through Certificates, Series 2021-B31

OTHER INFORMATION

Interest Reserve Account Information

November 18, 2022


Beginning Interest Reserve Account Balance	0.00
Deposit of Withheld Amounts to the Interest Reserve Account	0.00
Withdrawal of Withheld Amounts from the Interest Reserve Account	0.00
Ending Interest Reserve Account Balance	0.00
Collateral Information
% of Cut-Off Principal Balance Outstanding	99.813488	%
Controlling Class Information
Controlling Class is Class H.
The Controlling Class Representative is RREF IV Debt AIV, LP.
There Are No Disclosable Special Servicer Fees.


Reports Available at sf.citidirect.com	v. 21.09.28	Page 8 of 31	© Copyright 2022 Citigroup

Benchmark 2021-B31 Mortgage Trust

Commercial Mortgage Pass Through Certificates, Series 2021-B31

STRATIFICATION DETAIL

November 18, 2022


Anticipated Remaining Term

Anticipated Remaining	Asset	Ending Scheduled	% of			Wtd Avg
Term Range	Count	Balance	Agg.Bal. WAC		WAM	DSCR

60 Months or Less	3	148,900,000.00	9.97	3.2692	48	2.344802
61 to 90 Months	2	25,542,712.47	1.71	4.0405	72	2.023611
91 Months or Greater	57	1,319,416,016.86	88.32	3.4083	108	2.458039
Total	62	1,493,858,729.33	100.00	3.4052	101	2.439324

Debt Service Coverage Ratio

Debt Service Coverage	Asset	Ending Scheduled	% of			Wtd Avg
Ratio Range	Count	Balance	Agg.Bal. WAC		WAM	DSCR

1.250 or Less	4	91,428,850.12	6.12	2.8597	107	0.920642
1.251 to 1.500	4	66,412,712.47	4.45	3.8637	103	1.376649
1.501 to 1.750	7	164,809,739.56	11.03	3.4464	108	1.556740
1.751 to 2.000	8	110,486,610.89	7.40	3.8504	108	1.886118
2.001 to 2.250	8	170,480,000.00	11.41	3.7345	93	2.087474
2.251 to 2.500	7	212,565,000.00	14.23	3.4726	75	2.396099
2.501 to 2.750	6	214,510,000.00	14.36	3.4814	108	2.629633
2.751 to 3.000	7	169,040,816.29	11.32	2.8842	108	2.952963
3.001 to 3.250	2	98,500,000.00	6.59	3.4028	109	3.070914
3.251 to 3.500	4	78,750,000.00	5.27	3.0737	107	3.327295
3.501 to 3.750	1	21,000,000.00	1.41	2.9480	109	3.690000
3.751 to 4.000	2	63,150,000.00	4.23	2.6925	107	3.800000
4.001 or Greater	2	32,725,000.00	2.19	4.8012	108	5.898442
Total	62	1,493,858,729.33	100.00	3.4052	101	2.439324


Reports Available at sf.citidirect.com	v. 21.09.28	Page 9 of 31	© Copyright 2022 Citigroup

Benchmark 2021-B31 Mortgage Trust

Commercial Mortgage Pass Through Certificates, Series 2021-B31

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November 18, 2022


Ending Schedule Balance

Ending Schedule Balance	Asset	Ending Scheduled	% of			Wtd Avg
Range	Count	Balance	Agg.Bal. WAC WAM			DSCR

1 to 5,000,000	5	15,761,224.43	1.06	3.6440	108	2.184020
10,000,001 to 15,000,000	5	61,596,610.89	4.12	3.5674	107	2.787228
15,000,001 to 20,000,000	12	214,019,559.85	14.33	3.9441	105	2.435523
20,000,001 to 25,000,000	5	112,279,591.86	7.52	3.2379	108	2.684721
25,000,001 to 30,000,000	2	58,150,000.00	3.89	2.8460	107	3.583319
30,000,001 to 35,000,000	4	131,875,381.01	8.83	3.0077	94	1.982006
35,000,001 to 40,000,000	4	157,600,000.00	10.55	3.6212	109	2.555939
40,000,001 to 45,000,000	3	129,000,000.00	8.64	3.1562	88	1.679690
45,000,001 to 50,000,000	3	143,600,000.00	9.61	3.5662	108	2.554178
5,000,001 to 10,000,000	13	98,013,332.73	6.56	3.7420	104	2.113162
50,000,001 to 55,000,000	1	55,000,000.00	3.68	3.3610	107	2.580000
55,000,001 to 60,000,000	3	171,963,028.56	11.51	3.4314	109	2.420687
60,000,001 to 65,000,000	0	0.00	0.00	0.0000	0	0.000000
65,000,001 to 70,000,000	1	70,000,000.00	4.69	2.7920	108	2.970000
70,000,001 to 75,000,000	1	75,000,000.00	5.02	2.8380	48	2.480000
75,000,001 to 80,000,000	0	0.00	0.00	0.0000	0	0.000000
80,000,001 to 85,000,000	0	0.00	0.00	0.0000	0	0.000000
85,000,000+	0	0.00	0.00	0.0000	0	0.000000
Total	62	1,493,858,729.33	100.00	3.4052	101	2.439324


Reports Available at sf.citidirect.com	v. 21.09.28	Page 10 of 31	© Copyright 2022 Citigroup

Benchmark 2021-B31 Mortgage Trust

Commercial Mortgage Pass Through Certificates, Series 2021-B31

STRATIFICATION DETAIL

November 18, 2022


Loan Rate

	Asset	Ending Scheduled	% of			Wtd Avg
Loan Rate Range	Count	Balance	Agg.Bal. WAC WAM			DSCR

4.00 or Less	57	1,429,841,016.86	95.71	3.3415	102	2.395430
4.01 to 4.25	1	2,400,000.00	0.16	4.1000	108	1.620000
4.26 to 4.50	3	41,642,712.47	2.79	4.3644	55	2.074661
4.51 to 4.75	0	0.00	0.00	0.0000	0	0.000000
4.76 to 5.00	0	0.00	0.00	0.0000	0	0.000000
5.01 to 5.25	0	0.00	0.00	0.0000	0	0.000000
5.26 to 5.50	0	0.00	0.00	0.0000	0	0.000000
5.51 to 5.75	0	0.00	0.00	0.0000	0	0.000000
5.76 to 6.00	1	19,975,000.00	1.34	5.8870	108	6.440000
6.01 to 6.25	0	0.00	0.00	0.0000	0	0.000000
6.26 to 6.50	0	0.00	0.00	0.0000	0	0.000000
6.51 to 6.75	0	0.00	0.00	0.0000	0	0.000000
6.76 to 7.00	0	0.00	0.00	0.0000	0	0.000000
7.01 or Greater	0	0.00	0.00	0.0000	0	0.000000
Total	62	1,493,858,729.33	100.00	3.4052	101	2.439324

Property Type

	Asset	Ending Scheduled	% of			Wtd Avg
Property Type Range	Count	Balance	Agg.Bal. WAC WAM			DSCR

Industrial	7	130,885,000.00	8.76	3.7214	108	2.160708
Lodging	0	0.00	0.00	0.0000	0	0.000000
Mixed Use	7	231,940,816.29	15.53	3.2162	108	2.717073
Multifamily	13	271,568,093.48	18.18	3.3274	107	1.545744
Office	14	410,883,028.56	27.50	3.2542	91	2.765057
Other	7	187,246,711.00	12.53	3.4693	94	2.420081
Retail	12	236,175,080.00	15.81	3.6800	107	2.862651
Self Storage	1	6,660,000.00	0.45	3.5100	109	2.610000
Total	62	1,493,858,729.33	100.00	3.4052	101	2.439324


Reports Available at sf.citidirect.com	v. 21.09.28	Page 11 of 31	© Copyright 2022 Citigroup

Benchmark 2021-B31 Mortgage Trust

Commercial Mortgage Pass Through Certificates, Series 2021-B31

STRATIFICATION DETAIL

November 18, 2022


Remaining Amortization Term

Remaining Amortization	Asset	Ending Scheduled	% of			Wtd Avg
Term Range	Count	Balance	Agg.Bal.	WAC	WAM	DSCR

240 Months or Less	50	1,211,772,527.29	81.12	3.4482	102	2.660934
241 to 270 Months	0	0.00	0.00	0.0000	0	0.000000
271 to 300 Months	0	0.00	0.00	0.0000	0	0.000000
301 Months or Greater	12	282,086,202.04	18.88	3.2208	97	1.487345
Total	62	1,493,858,729.33	100.00	3.4052	101	2.439324

Seasoning

	Asset	Ending Scheduled	% of			Wtd Avg
Seasoning Range	Count	Balance	Agg.Bal.	WAC	WAM	DSCR

12 Months or Less	56	1,307,135,880.48	87.50	3.4453	101	2.367875
13 to 24 Months	6	186,722,848.85	12.50	3.1248	106	2.939498
25 to 36 Months	0	0.00	0.00	0.0000	0	0.000000
37 to 48 Months	0	0.00	0.00	0.0000	0	0.000000
49 Months or Greater	0	0.00	0.00	0.0000	0	0.000000
Total	62	1,493,858,729.33	100.00	3.4052	101	2.439324


Reports Available at sf.citidirect.com	v. 21.09.28	Page 12 of 31	© Copyright 2022 Citigroup

Benchmark 2021-B31 Mortgage Trust

Commercial Mortgage Pass Through Certificates, Series 2021-B31

STRATIFICATION DETAIL

November 18, 2022


State

	Asset	Ending Scheduled	% of			Wtd Avg
State Range	Count	Balance	Agg.Bal. WAC WAM			DSCR

Arizona	1	55,000,000.00	3.68	3.3610	107	2.580000
California	8	145,450,000.00	9.74	3.2677	107	2.995445
Connecticut	2	94,000,000.00	6.29	3.2570	109	2.660000
Florida	3	59,150,000.00	3.96	3.8915	108	2.191319
Georgia	2	21,575,000.00	1.44	5.7789	108	6.127787
Illinois	1	42,500,000.00	2.84	3.7800	109	1.370000
Indiana	1	8,200,000.00	0.55	3.3090	109	2.810000
Kansas	1	9,830,000.00	0.66	3.8900	108	1.940000
Massachusetts	6	211,290,816.29	14.14	2.7623	107	3.218068
Michigan	2	12,700,000.00	0.85	3.6859	109	2.846535
Mississippi	1	9,642,712.47	0.65	4.3200	72	1.370000
N/A	6	194,246,711.00	13.00	3.4947	95	2.466875
New Jersey	5	178,274,002.62	11.93	2.8293	82	1.751470
New York	9	177,049,227.24	11.85	3.5935	108	1.832836
North Carolina	1	13,250,000.00	0.89	3.8080	109	2.560000
Ohio	3	32,080,000.00	2.15	3.8937	90	2.323990
Oregon	1	40,000,000.00	2.68	3.6410	109	3.160000
Rhode Island	2	58,250,000.00	3.90	3.7908	109	2.218412
Tennessee	1	6,660,000.00	0.45	3.5100	109	2.610000
Texas	3	74,664,639.45	5.00	3.8147	109	1.600552
Utah	1	30,400,000.00	2.03	4.3750	48	2.290000
Vermont	1	6,380,620.26	0.43	3.6000	108	1.130000
Virginia	1	13,265,000.00	0.89	3.1800	105	2.350000
Total	62	1,493,858,729.33	100.00	3.4052	101	2.439324


Reports Available at sf.citidirect.com	v. 21.09.28	Page 13 of 31	© Copyright 2022 Citigroup

Benchmark 2021-B31 Mortgage Trust

Commercial Mortgage Pass Through Certificates, Series 2021-B31

MORTGAGE LOAN DETAIL

November 18, 2022


			Prop			Paid					Beginning	Ending		Payment Workout Mod
			Type			Through	Gross		Interest	Principal	Scheduled	Scheduled	Maturity	Status		Strategy Code
Loan ID	OMCR		(1)	City	State	Date	Coupon		Payment	Payment	Balance	Balance	Date	(2	)	(3	)	(4	)

30508068	10		N/A			11/06/2022	3.24000	%	121,365.00	-	43,500,000.00	43,500,000.00	11/06/2026	0		0		0
30508200	11	A1	MF	Harrison	NJ	11/01/2022	2.45500	%	90,903.19	-	43,000,000.00	43,000,000.00	12/01/2031	0		0		0
30508148	12		MF		IL	11/06/2022	3.78000	%	138,337.50	-	42,500,000.00	42,500,000.00	12/06/2031	0		0		0
30507887	13	A1	IN	Town of Burrillville	RI	11/06/2022	3.71000	%	127,788.89	-	40,000,000.00	40,000,000.00	12/06/2031	0		0		0
30508193	14	A1	RT	Tualatin	OR	11/05/2022	3.64100	%	125,412.22	-	40,000,000.00	40,000,000.00	12/05/2031	0		0		0
30320459	15	A1	IN			11/06/2022	3.85500	%	132,783.33	-	40,000,000.00	40,000,000.00	12/06/2031	0		0		0
30508186	16		MF	Fort Lee	NJ	11/06/2022	2.62000	%	78,379.63	39,877.37	34,741,031.14	34,701,153.77	12/06/2031	0		0		0
30508108	17		MF	Kew Garden Hills	NY	11/06/2022	2.47000	%	67,710.08	60,212.45	31,834,439.69	31,774,227.24	11/06/2031	0		0		0
30507803	18		OF	Lehi	UT	11/01/2022	4.37500	%	114,527.78	-	30,400,000.00	30,400,000.00	11/01/2026	0		0		0
30507941	19	A2	RT	Concord	CA	11/05/2022	2.99000	%	77,241.67	-	30,000,000.00	30,000,000.00	10/05/2031	0		0		0
30508000	20		N/A			11/06/2022	3.94000	%	55,121.48	-	16,246,711.00	16,246,711.00	11/06/2031	0		0		0
30507995	21		IN	Oregon	OH	11/06/2022	3.97000	%	28,647.96	-	8,380,000.00	8,380,000.00	11/06/2031	0		0		0
30508009	22		OF	Beverly Hills	CA	11/06/2022	2.90100	%	57,955.53	-	23,200,000.00	23,200,000.00	11/06/2031	0		0		0
30508065	23		MU	New York	NY	10/06/2022	3.91000	%	77,776.42	-	23,100,000.00	23,100,000.00	11/06/2031	B		0		0
30508219	24		OF	Sunnyvale	CA	11/06/2022	2.94800	%	53,309.67	-	21,000,000.00	21,000,000.00	12/06/2031	0		0		0
30508187	25		N/A	New York	NY	11/06/2022	3.67000	%	66,365.83	-	21,000,000.00	21,000,000.00	12/06/2031	0		0		0
30508028	26	A3	RT	Los Angeles	CA	11/06/2022	3.49000	%	60,105.56	-	20,000,000.00	20,000,000.00	10/06/2031	0		0		0
30508006	27		RT	Morrow	GA	11/06/2022	5.88700	%	101,260.49	-	19,975,000.00	19,975,000.00	11/06/2031	0		0		0
30508080	28	A2	RT	Audubon	NJ	11/06/2022	3.72000	%	59,584.99	28,083.85	18,600,932.70	18,572,848.85	08/06/2031	0		0		0
30508197	29		MH	El Cajon	CA	11/06/2022	3.84000	%	61,173.33	-	18,500,000.00	18,500,000.00	12/06/2031	0		0		0
30320453	2	A1	OF	Greenwich	CT	11/06/2022	3.25700	%	158,181.63	-	56,400,000.00	56,400,000.00	12/06/2031	0		0		0
30320454	2	A2	OF	Greenwich	CT	11/06/2022	3.25700	%	105,454.42	-	37,600,000.00	37,600,000.00	12/06/2031	0		0		0
30508145	30		MF	North Providence	RI	11/01/2022	3.96800	%	62,358.22	-	18,250,000.00	18,250,000.00	12/01/2031	0		0		0
30508188	31		N/A			11/06/2022	3.32000	%	51,460.00	-	18,000,000.00	18,000,000.00	12/06/2031	0		0		0
30508047	32		N/A			11/06/2022	3.91000	%	60,605.00	-	18,000,000.00	18,000,000.00	11/06/2031	0		0		0
30508070	33		IN	Haverstraw	NY	11/06/2022	3.48000	%	53,565.42	-	17,875,000.00	17,875,000.00	12/06/2031	0		0		0
30320461	34		MF	Los Angeles	CA	11/06/2022	3.76000	%	56,984.89	-	17,600,000.00	17,600,000.00	11/06/2031	0		0		0
30507953	35		OF	Blue Ash	OH	11/01/2022	3.87100	%	53,000.44	-	15,900,000.00	15,900,000.00	11/01/2028	0		0		0
30508142	36		MU	Jackson Heights	NY	11/06/2022	3.98000	%	51,751.06	-	15,100,000.00	15,100,000.00	12/06/2031	0		0		0
30530175	37		RT	Vinton	VA	11/06/2022	3.18000	%	36,323.99	-	13,265,000.00	13,265,000.00	08/06/2031	0		0		0
30508066	38		RT	Gastonia	NC	11/06/2022	3.80800	%	43,448.22	-	13,250,000.00	13,250,000.00	12/06/2031	0		0		0
30508049	39		OF	Pomona	CA	11/06/2022	3.10000	%	34,035.42	-	12,750,000.00	12,750,000.00	11/06/2031	0		0		0


Reports Available at sf.citidirect.com	v. 21.09.28	Page 14 of 31	© Copyright 2022 Citigroup

Benchmark 2021-B31 Mortgage Trust

Commercial Mortgage Pass Through Certificates, Series 2021-B31

MORTGAGE LOAN DETAIL

November 18, 2022


			Prop			Paid					Beginning	Ending		Payment Workout Mod
			Type			Through	Gross		Interest	Principal	Scheduled	Scheduled	Maturity	Status		Strategy Code
Loan ID	OMCR		(1)	City	State	Date	Coupon		Payment	Payment	Balance	Balance	Date	(2	)	(3	)	(4	)

30320455	3	A1	OF	Plainsboro	NJ	11/06/2022	2.83800	%	183,287.50	-	75,000,000.00	75,000,000.00	04/06/2031	0		0		0
30508195	40		N/A	Nanuet	NY	11/01/2022	3.99300	%	41,261.00	-	12,000,000.00	12,000,000.00	12/01/2031	0		0		0
30508069	41		RT	Austin	TX	11/06/2022	3.83900	%	34,203.74	14,955.19	10,346,566.08	10,331,610.89	12/06/2031	0		0		0
30508046	42		IN	Topeka	KS	11/06/2022	3.89000	%	32,927.77	-	9,830,000.00	9,830,000.00	11/06/2031	0		0		0
30508052	43		MF	Jackson	MS	11/06/2022	4.32000	%	35,918.11	12,694.45	9,655,406.92	9,642,712.47	11/06/2028	0		0		0
30530176	44		IN	Indianapolis	IN	11/06/2022	3.30900	%	23,365.22	-	8,200,000.00	8,200,000.00	12/06/2031	0		0		0
30530172	45		RT	Mason	OH	11/06/2022	3.85800	%	25,912.90	-	7,800,000.00	7,800,000.00	11/06/2031	0		0		0
30508007	46		OF	West Palm Beach	FL	11/06/2022	3.35000	%	21,779.65	-	7,550,000.00	7,550,000.00	11/06/2031	0		0		0
30530177	47		OF	Houston	TX	11/06/2022	3.89600	%	24,390.04	-	7,270,000.00	7,270,000.00	12/06/2031	0		0		0
30508144	48		MF	Ann Arbor	MI	11/01/2022	3.65000	%	22,001.39	-	7,000,000.00	7,000,000.00	12/01/2031	0		0		0
30508051	49		MF	Orange	NJ	11/06/2022	3.71000	%	22,363.06	-	7,000,000.00	7,000,000.00	11/06/2031	0		0		0
30507836	4	A5	OF	Cambridge	MA	11/05/2022	2.69250	%	81,148.96	-	35,000,000.00	35,000,000.00	10/05/2031	0		0		0
30507837	4	A6	OF	Cambridge	MA	11/05/2022	2.69250	%	65,266.95	-	28,150,000.00	28,150,000.00	10/05/2031	0		0		0
30508185	5		N/A			11/06/2022	3.24000	%	163,215.00	-	58,500,000.00	58,500,000.00	12/06/2031	0		0		0
30508158	50		SS		TN	11/06/2022	3.51000	%	20,129.85	-	6,660,000.00	6,660,000.00	12/06/2031	0		0		0
30508073	51		IN	Yonkers	NY	11/06/2022	3.58000	%	20,346.33	-	6,600,000.00	6,600,000.00	12/06/2031	0		0		0
30508106	52		RT	Springfield	VT	11/06/2022	3.60000	%	19,810.12	9,741.83	6,390,362.09	6,380,620.26	11/06/2031	0		0		0
30508192	53		MF	Southfield	MI	11/06/2022	3.73000	%	18,308.08	-	5,700,000.00	5,700,000.00	12/06/2031	0		0		0
30508218	54		MF	Brooklyn	NY	11/06/2022	3.64000	%	12,537.78	-	4,000,000.00	4,000,000.00	12/06/2031	0		0		0
30508010	55		OF	Melbourne	FL	11/06/2022	3.98000	%	12,338.00	-	3,600,000.00	3,600,000.00	11/06/2031	0		0		0
30320462	56		MF	Los Angeles	CA	11/06/2022	4.10000	%	8,473.33	-	2,400,000.00	2,400,000.00	11/06/2031	0		0		0
30508110	57		RT	Newnan	GA	11/06/2022	4.43000	%	6,103.56	-	1,600,000.00	1,600,000.00	11/06/2031	0		0		0
30508191	6		OF		TX	11/06/2022	3.80000	%	186,995.36	83,259.90	57,146,288.46	57,063,028.56	12/06/2031	0		0		0
30530169	7	A1	RT	Tucson	AZ	11/06/2022	3.36100	%	159,180.69	-	55,000,000.00	55,000,000.00	10/06/2031	0		0		0
30508159	8	A1	MF		FL	11/06/2022	3.97000	%	164,093.33	-	48,000,000.00	48,000,000.00	12/06/2031	0		0		0
30508147	9		MU	New York	NY	11/01/2022	3.99000	%	156,674.00	-	45,600,000.00	45,600,000.00	12/01/2031	0		0		0
30320449	A-1-2		MU	Cambridge	MA	11/06/2022	2.79200	%	168,295.56	-	70,000,000.00	70,000,000.00	11/06/2036	0		0		0
30320450	A-1-4		MU	Cambridge	MA	11/06/2022	2.79200	%	120,211.11	-	50,000,000.00	50,000,000.00	11/06/2036	0		0		0
30320451	A-1-9		MU	Cambridge	MA	11/06/2022	2.79200	%	10,004.51	-	4,161,224.43	4,161,224.43	11/06/2036	0		0		0
30320452	A-3-3		MU	Cambridge	MA	11/06/2022	2.79200	%	57,652.27	-	23,979,591.86	23,979,591.86	11/06/2036	0		0		0
Total	Count = 62								4,381,114.43	248,825.04	1,494,107,554.37	1,493,858,729.33


Reports Available at sf.citidirect.com	v. 21.09.28	Page 15 of 31	© Copyright 2022 Citigroup

Benchmark 2021-B31 Mortgage Trust

Commercial Mortgage Pass Through Certificates, Series 2021-B31

NOI DETAIL

November 18, 2022


			Property			Ending	Preceding	Most	Most Recent	Most Recent
			Type			Scheduled	Fiscal	Recent	Financial As of	Financial Asof
Loan ID	OMCR		(1)	City	State	Balance	Year NOI	NOI	Start Date	End Date

30508068	10		N/A			43,500,000.00	5,580,485.99	5,580,485.99	Not Available	Not Available
30508200	11	A1	MF	Harrison	NJ	43,000,000.00	6,211,315.77	4,057,634.40	01/01/2022	09/30/2022
30508148	12		MF		IL	42,500,000.00	3,504,372.64	2,369,822.27	Not Available	Not Available
30507887	13	A1	IN	Town of Burrillville	RI	40,000,000.00	5,805,023.16	5,805,023.16	Not Available	Not Available
30508193	14	A1	RT	Tualatin	OR	40,000,000.00	8,004,851.65	7,535,806.22	01/01/2022	06/30/2022
30320459	15	A1	IN			40,000,000.00	5,613,091.69	5,613,091.69	Not Available	Not Available
30508186	16		MF	Fort Lee	NJ	34,701,153.77	12,852,280.67	1,499,016.27	01/01/2022	09/30/2022
30508108	17		MF	Kew Garden Hills	NY	31,774,227.24	8,362,891.07	1,402,058.39	01/01/2022	06/30/2022
30507803	18		OF	Lehi	UT	30,400,000.00	3,043,763.25	3,258,684.03	01/01/2022	09/30/2022
30507941	19	A2	RT	Concord	CA	30,000,000.00	9,257,774.93	10,477,328.58	01/01/2022	06/30/2022
30508000	20		N/A			16,246,711.00	1,448,208.20	1,136,799.04	Not Available	Not Available
30507995	21		IN	Oregon	OH	8,380,000.00	751,686.89	750,326.67	01/01/2022	09/30/2022
30508009	22		OF	Beverly Hills	CA	23,200,000.00	2,288,545.71	2,279,786.87	01/01/2022	06/30/2022
30508065	23		MU	New York	NY	23,100,000.00	1,799,382.98	1,799,382.98	Not Available	Not Available
30508219	24		OF	Sunnyvale	CA	21,000,000.00	2,864,328.24	2,333,596.79	01/01/2022	09/30/2022
30508187	25		N/A	New York	NY	21,000,000.00	1,713,673.99	1,239,790.09	Not Available	Not Available
30508028	26	A3	RT	Los Angeles	CA	20,000,000.00	8,011,512.52	8,011,512.52	Not Available	Not Available
30508006	27		RT	Morrow	GA	19,975,000.00	8,287,236.76	8,287,236.76	Not Available	Not Available
30508080	28	A2	RT	Audubon	NJ	18,572,848.85	3,072,150.48	3,120,701.42	07/01/2021	06/30/2022
30508197	29		MH	El Cajon	CA	18,500,000.00	1,429,626.50	1,114,093.56	01/01/2022	09/30/2022
30320453	2	A1	OF	Greenwich	CT	56,400,000.00	9,799,323.41	8,996,080.85	01/01/2022	06/30/2022
30320454	2	A2	OF	Greenwich	CT	37,600,000.00	9,799,323.41	8,996,080.85	01/01/2022	06/30/2022
30508145	30		MF	North Providence	RI	18,250,000.00	1,498,387.07	1,466,135.06	10/01/2021	09/30/2022
30508188	31		N/A			18,000,000.00	2,096,242.85	2,096,242.85	Not Available	Not Available
30508047	32		N/A			18,000,000.00	1,640,314.17	1,689,934.00	01/01/2022	06/30/2022
30508070	33		IN	Haverstraw	NY	17,875,000.00	1,619,035.64	1,336,339.24	01/01/2022	06/30/2022
30320461	34		MF	Los Angeles	CA	17,600,000.00	1,486,443.97	1,363,567.80	01/01/2022	06/30/2022
30507953	35		OF	Blue Ash	OH	15,900,000.00	1,646,398.36	1,536,041.39	10/01/2021	09/30/2022
30508142	36		MU	Jackson Heights	NY	15,100,000.00	1,316,965.15	1,186,432.08	01/01/2022	06/30/2022
30530175	37		RT	Vinton	VA	13,265,000.00	1,301,146.00	1,095,172.38	01/01/2022	09/30/2022
30508066	38		RT	Gastonia	NC	13,250,000.00	1,442,635.11	1,428,184.52	01/01/2022	09/30/2022
30508049	39		OF	Pomona	CA	12,750,000.00	1,806,030.78	2,043,241.29	01/01/2022	09/30/2022
Reports Available at sf.citidirect.com			v. 21.09.28			Page 16 of 31			© Copyright 2022 Citigroup

Benchmark 2021-B31 Mortgage Trust

Commercial Mortgage Pass Through Certificates, Series 2021-B31

NOI DETAIL

November 18, 2022


			Property			Ending	Preceding	Most	Most Recent	Most Recent
			Type			Scheduled	Fiscal	Recent	Financial As of	Financial Asof
Loan ID	OMCR		(1)	City	State	Balance	Year NOI	NOI	Start Date	End Date

30320455	3	A1	OF	Plainsboro	NJ	75,000,000.00	19,318,411.67	4,408,321.71	01/01/2022	03/31/2022
30508195	40		N/A	Nanuet	NY	12,000,000.00	727,939.00	946,518.40	01/01/2022	06/30/2022
30508069	41		RT	Austin	TX	10,331,610.89	955,490.66	1,081,490.12	01/01/2022	09/30/2022
30508046	42		IN	Topeka	KS	9,830,000.00	819,298.86	754,903.00	01/01/2022	06/30/2022
30508052	43		MF	Jackson	MS	9,642,712.47	823,031.27	823,031.27	Not Available	Not Available
30530176	44		IN	Indianapolis	IN	8,200,000.00	886,615.71	920,428.46	01/01/2022	06/30/2022
30530172	45		RT	Mason	OH	7,800,000.00	722,389.49	722,389.49	Not Available	Not Available
30508007	46		OF	West Palm Beach	FL	7,550,000.00	887,957.27	899,112.32	01/01/2022	09/30/2022
30530177	47		OF	Houston	TX	7,270,000.00	403,058.20	531,132.76	07/01/2021	06/30/2022
30508144	48		MF	Ann Arbor	MI	7,000,000.00	762,378.74	757,666.58	Not Available	Not Available
30508051	49		MF	Orange	NJ	7,000,000.00	544,583.46	372,471.34	01/01/2022	06/30/2022
30507836	4	A5	OF	Cambridge	MA	35,000,000.00	30,597,922.22	31,936,996.77	01/01/2022	06/30/2022
30507837	4	A6	OF	Cambridge	MA	28,150,000.00	30,597,922.22	31,936,996.77	01/01/2022	06/30/2022
30508185	5		N/A			58,500,000.00	6,616,309.79	6,616,309.79	Not Available	Not Available
30508158	50		SS		TN	6,660,000.00	630,406.95	630,406.95	Not Available	Not Available
30508073	51		IN	Yonkers	NY	6,600,000.00	579,231.07	579,231.07	Not Available	Not Available
30508106	52		RT	Springfield	VT	6,380,620.26	762,235.94	562,396.44	01/01/2022	06/30/2022
30508192	53		MF	Southfield	MI	5,700,000.00	544,418.22	636,885.30	01/01/2022	09/30/2022
30508218	54		MF	Brooklyn	NY	4,000,000.00	300,771.00	264,923.13	01/01/2022	09/30/2022
30508010	55		OF	Melbourne	FL	3,600,000.00	367,376.27	302,720.29	01/01/2022	09/30/2022
30320462	56		MF	Los Angeles	CA	2,400,000.00	290,432.14	163,136.66	01/01/2022	06/30/2022
30508110	57		RT	Newnan	GA	1,600,000.00	140,752.92	166,215.47	01/01/2022	09/30/2022
30508191	6		OF		TX	57,063,028.56	5,325,683.87	5,479,131.60	01/01/2022	06/30/2022
30530169	7	A1	RT	Tucson	AZ	55,000,000.00	9,446,346.05	9,013,105.56	01/01/2022	06/30/2022
30508159	8	A1	MF		FL	48,000,000.00	6,123,830.19	6,966,299.33	01/01/2022	09/30/2022
30508147	9		MU	New York	NY	45,600,000.00	4,880,883.57	4,896,094.08	01/01/2022	09/30/2022
30320449	A-1-2		MU	Cambridge	MA	70,000,000.00	80,703,531.62	68,023,016.00	01/01/2022	06/30/2022
30320450	A-1-4		MU	Cambridge	MA	50,000,000.00	80,703,531.62	68,023,016.00	01/01/2022	06/30/2022
30320451	A-1-9		MU	Cambridge	MA	4,161,224.43	80,703,531.62	68,023,016.00	01/01/2022	06/30/2022
30320452	A-3-3		MU	Cambridge	MA	23,979,591.86	80,703,531.62	68,023,016.00	01/01/2022	06/30/2022
Total	Count = 62					1,493,858,729.33	582,224,252.24	495,366,008.67


Reports Available at sf.citidirect.com	v. 21.09.28	Page 17 of 31	© Copyright 2022 Citigroup

Benchmark 2021-B31 Mortgage Trust

Commercial Mortgage Pass Through Certificates, Series 2021-B31

DELINQUENCY LOAN DETAIL

November 18, 2022

# of

Actual

Paid

Current P&I

Total P&I

Cumulative

Other Expense

Payment Workout

Most Recent

Months

Principal

Through

Advances

Accrued Unpaid

Advances

Status

Strategy

Special Serv

Foreclosure

Bankruptcy

REO

Loan ID

OMCR

Delinq

Balance

Date

(Net of ASER)

Outstanding

Interest Advances

Outstanding

)

Transfer Date

Date

30508065

23,100,000.00

10/06/2022

77,726.69

Total

Count = 1

23,100,000.00

77,726.69


Reports Available at sf.citidirect.com	v. 21.09.28	Page 18 of 31	© Copyright 2022 Citigroup

Benchmark 2021-B31 Mortgage Trust

Commercial Mortgage Pass Through Certificates, Series 2021-B31

COLLATERAL PERFORMANCE - DELINQUENCY AND LOAN STATUS DETAIL

–

November 18, 2022


							Delinquent
					(Does not include loans in Bankruptcy, Foreclosure, or REO)

			30	Day			60	Day			90	Day	120			+ Day	Bankruptcy				Foreclosure						REO

Distribution

Date	Count		Balance		Count		Balance		Count		Balance		Count		Balance		Count		Balance		Count		Balance		Count			Balance


	0		0		0		0		0		0		0		0		0		0		0		0		0			0
11/18/2022
	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%		0.0	%

	0		0		0		0		0		0		0		0		0		0		0		0		0			0
10/17/2022
	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%		0.0	%

	0		0		0		0		0		0		0		0		0		0		0		0		0			0
09/16/2022
	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%		0.0	%

	0		0		0		0		0		0		0		0		0		0		0		0		0			0
08/17/2022
	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%		0.0	%

	0		0		0		0		0		0		0		0		0		0		0		0		0			0
07/15/2022
	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%		0.0	%

	0		0		0		0		0		0		0		0		0		0		0		0		0			0
06/17/2022
	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%		0.0	%

	0		0		0		0		0		0		0		0		0		0		0		0		0			0
05/17/2022
	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%		0.0	%

	0		0		0		0		0		0		0		0		0		0		0		0		0			0
04/15/2022
	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%		0.0	%

	0		0		0		0		0		0		0		0		0		0		0		0		0			0
03/17/2022
	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%		0.0	%

	0		0		0		0		0		0		0		0		0		0		0		0		0			0
02/17/2022
	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%		0.0	%

	0		0		0		0		0		0		0		0		0		0		0		0		0			0
01/18/2022
	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%		0.0	%


Reports Available at sf.citidirect.com	v. 21.09.28	Page 19 of 31	© Copyright 2022 Citigroup

Benchmark 2021-B31 Mortgage Trust

Commercial Mortgage Pass Through Certificates, Series 2021-B31

SPECIALLY SERVICED LOAN DETAIL

November 18, 2022


			Special Servicing	Ending	Ending	Most	Most Recent	Most Recent	Most Recent
		Workout	Fee Amount	Scheduled	Actual	Recent	Valuation	Special Servicer	Master Servicer
Loan ID	OMCR	Strategy (3)	Plus Adjustments	Balance	Balance	Value	Date	Transfer Date	Return Date

No Loans Specially Serviced to Report.
Total	Count = 0


Reports Available at sf.citidirect.com	v. 21.09.28	Page 24 of 31	© Copyright 2022 Citigroup

Benchmark 2021-B31 Mortgage Trust

Commercial Mortgage Pass Through Certificates, Series 2021-B31

HISTORICAL SPECIALLY SERVICED LOANS

November 18, 2022


				Special Servicing	Ending	Ending	Most	Most Recent	Most Recent	Most Recent
Distribution			Workout	Fee Amount	Scheduled	Actual	Recent	Valuation	Special Servicer	Master Servicer
Date	Loan ID	OMCR	Strategy (3)	Plus Adjustments	Balance	Balance	Value	Date	Transfer Date	Return Date

No Loans Specially Serviced to Report.


Reports Available at sf.citidirect.com	v. 21.09.28	Page 25 of 31	© Copyright 2022 Citigroup

Benchmark 2021-B31 Mortgage Trust

Commercial Mortgage Pass Through Certificates, Series 2021-B31

LIQUIDATED LOAN DETAIL

November 18, 2022


		Beginning	Most	Liquidation	Net		Net	Realized	Date of		Loss with
		Scheduled	Recent	Sales	Proceeds	Liquidation	Proceeds	Loss to	Current	Current Cumulative	Cumulative
Loan ID	OMCR	Balance	Value	Price	Received	Expense	Available	Trust	Adj. to Loan	Adj. to Loan Adj. to Loan	Adj. to Trust

No Loans liquidated to Report.
Total	Count = 0


Reports Available at sf.citidirect.com	v. 21.09.28	Page 28 of 31	© Copyright 2022 Citigroup

Benchmark 2021-B31 Mortgage Trust

Commercial Mortgage Pass Through Certificates, Series 2021-B31

HISTORICAL LIQUIDATED LOAN

November 18, 2022


		Beginning	Most	Liquidation	Net		Net	Realized	Date of		Loss with
Distribution		Scheduled	Recent	Sales	Proceeds	Liquidation	Proceeds	Loss to	Current	Current Cumulative	Cumulative
Date	Loan ID OMCR	Balance	Value	Price	Received	Expense	Available	Trust	Adj. to Loan	Adj. to Loan Adj. to Loan	Adj. to Trust

No Loans liquidated to Report.


Reports Available at sf.citidirect.com	v. 21.09.28	Page 29 of 31	© Copyright 2022 Citigroup

Benchmark 2021-B31 Mortgage Trust

Commercial Mortgage Pass Through Certificates, Series 2021-B31

CREFC® INVESTOR REPORTING PACKAGE LEGENDS

November 18, 2022


	Property Type (1)		Workout Strategy (3)		Liquidation/Prepayment Code (5)

MF	Multifamily	1	Modification	1	Partial Liquidation (Curtailment)
RT	Retail	2	Foreclosure	2	Payoff Prior To Maturity
HC	HealthCare	3	Bankruptcy	3	Disposition / Liquidation
IN	Industrial	4	Extension	4	Repurchase / Substitution
WH	Warehouse	5	Note Sale	5	Full Payoff At Maturity
MH	Mobile Home Park	6	DPO	6	DPO
OF	Office	7	REO	7	Liquidation prior to 7/1/2006
MU	Mixed Use	8	Resolved	8	Payoff With Penalty
LO	Lodging	9	Pending Return to Master Servicer	9	Payoff With Yield Maintenance
SS	Self Storage	10	Deed In Lieu of Foreclosure	10	Curtailment With Penalty
OT	Other	11	Full Payoff	11	Curtailment With Yield Maintenance
SE	Securities	12	Reps and Warranties
CH	Cooperative Housing	13	TBD
ZZ	Missing Information	98	Other
SF	SF

			Modification Code (4)
	Payment Status of Loan (2)
		1	Maturity Date Extension
A	In Grace Period	2	Amortization Change
B	Late, but less than 30 Days	3	Principal Write-Off
0	Current	4	Blank (formerly Combination)
1	30-59 Days Delinquent	5	Temporary Rate Reduction
2	60-89 Days Delinquent	6	Capitalization of Interest
3	90-120 Days Delinquent	7	Capitalization of Taxes
4	Performing Matured Balloon	8	Other
5	Non Performing Matured Balloon	9	Combination
6	121+ Days Delinquent	10	Forbearance


Reports Available at sf.citidirect.com	v. 21.09.28	Page 30 of 31	© Copyright 2022 Citigroup


			Beginning	Ending	Appraisal	Appraisal	Most Recent	Cumulative
Loan ID	OMCR	Property Name	Scheduled Balance	Scheduled Balance	Reduction Amount	Reduction Date	ASER Amount	ASER Amount

No Loans with Appraisal Reduction Activity.
Total	Count = 0


Distribution				Beginning	Ending	Appraisal	Appraisal	Most Recent	Cumulative
Date	Loan ID	OMCR	Property Name	Scheduled Balance	Scheduled Balance	Reduction Amount	Reduction Date	ASER Amount	ASER Amount

No Loans with Appraisal Reduction Activity.


		Liquidation /	Liquid / Prepay	Principal	Principal	Prepayment Interest	Prepayment	Yield Maintenance
Loan ID	OMCR	Prepayment Date	Code (5)	Collections	Adjustments	Excess / (Shortfall)	Penalties (PPP)	Penalties (YM)

No Loans with Unscheduled Principal Activity to Report.
Total	Count = 0


Reports Available at sf.citidirect.com	v. 21.09.28	Page 20 of 31	© Copyright 2022 Citigroup


Reports Available at sf.citidirect.com	v. 21.09.28	Page 21 of 31	© Copyright 2022 Citigroup


				Modification	Modification
Loan ID		OMCR	Property Name	Date	Code (4)

No Loans with Modification Activity to Report.
Total	Count = 0


Reports Available at sf.citidirect.com	v. 21.09.28	Page 22 of 31	© Copyright 2022 Citigroup


Reports Available at sf.citidirect.com	v. 21.09.28	Page 23 of 31	© Copyright 2022 Citigroup


Reports Available at sf.citidirect.com	v. 21.09.28	Page 26 of 31	© Copyright 2022 Citigroup


Reports Available at sf.citidirect.com	v. 21.09.28	Page 27 of 31	© Copyright 2022 Citigroup


Reports Available at sf.citidirect.com	v. 21.09.28	Page 31 of 31	© Copyright 2022 Citigroup