v3.26.3
Fair Value of Assets and Liabilities - Schedule of Fair Value Hierarchy for Assets and Liabilities Measured at Fair Value (Details) - USD ($)
$ in Thousands
Sep. 30, 2026
Dec. 31, 2025
Assets:    
Borrower Loans, at Fair Value $ 215,711 $ 309,737
Receivable from Credit Card Partner, at Fair Value (Notes 5 and 7) [1] 398,414 99,865
Servicing Assets (Note 6) 21,382 17,402
Credit Card Derivative (Note 5) 28,833 48,290
Total Assets 664,340 475,294
Liabilities:    
Notes, at Fair Value (Note 4) 212,396 243,900
Convertible Preferred Stock Warrant Liability (Note 13) 648 230,060
Loan Trailing Fee Liability (Note 10) 3,997 3,328
Credit Card servicing obligation liability (Notes 2 and 5) 4,728 9,276
Total Liabilities 221,769 486,564
Prosper Funding LLC    
Assets:    
Borrower Loans, at Fair Value 215,711 245,337
Servicing Assets (Note 6) 21,382 17,601
Total Assets 237,093 262,938
Liabilities:    
Notes, at Fair Value (Note 4) 212,396 243,900
Loan Trailing Fee Liability (Note 10) 3,997 3,328
Total Liabilities 216,393 247,228
Level 1 Inputs    
Assets:    
Borrower Loans, at Fair Value 0 0
Receivable from Credit Card Partner, at Fair Value (Notes 5 and 7) 0 0
Servicing Assets (Note 6) 0 0
Credit Card Derivative (Note 5) 0 0
Total Assets 0 0
Liabilities:    
Notes, at Fair Value (Note 4) 0 0
Convertible Preferred Stock Warrant Liability (Note 13) 0 0
Loan Trailing Fee Liability (Note 10) 0 0
Credit Card servicing obligation liability (Notes 2 and 5) 0 0
Total Liabilities 0 0
Level 1 Inputs | Prosper Funding LLC    
Assets:    
Borrower Loans, at Fair Value 0 0
Servicing Assets (Note 6) 0 0
Total Assets 0 0
Liabilities:    
Notes, at Fair Value (Note 4) 0 0
Loan Trailing Fee Liability (Note 10) 0 0
Total Liabilities 0 0
Level 2 Inputs    
Assets:    
Borrower Loans, at Fair Value 0 0
Receivable from Credit Card Partner, at Fair Value (Notes 5 and 7) 0 0
Servicing Assets (Note 6) 0 0
Credit Card Derivative (Note 5) 0 0
Total Assets 0 0
Liabilities:    
Notes, at Fair Value (Note 4) 0 0
Convertible Preferred Stock Warrant Liability (Note 13) 0 0
Loan Trailing Fee Liability (Note 10) 0 0
Credit Card servicing obligation liability (Notes 2 and 5) 0 0
Total Liabilities 0 0
Level 2 Inputs | Prosper Funding LLC    
Assets:    
Borrower Loans, at Fair Value 0 0
Servicing Assets (Note 6) 0 0
Total Assets 0 0
Liabilities:    
Notes, at Fair Value (Note 4) 0 0
Loan Trailing Fee Liability (Note 10) 0 0
Total Liabilities 0 0
Level 3 Inputs    
Assets:    
Borrower Loans, at Fair Value 215,711 309,737
Receivable from Credit Card Partner, at Fair Value (Notes 5 and 7) 398,414 99,865
Servicing Assets (Note 6) 21,382 17,402
Credit Card Derivative (Note 5) 28,833 48,290
Total Assets 664,340 475,294
Liabilities:    
Notes, at Fair Value (Note 4) 212,396 243,900
Convertible Preferred Stock Warrant Liability (Note 13) 648 230,060
Loan Trailing Fee Liability (Note 10) 3,997 3,328
Credit Card servicing obligation liability (Notes 2 and 5) 4,728 9,276
Total Liabilities 221,769 486,564
Level 3 Inputs | Prosper Funding LLC    
Assets:    
Borrower Loans, at Fair Value 215,711 245,337
Servicing Assets (Note 6) 21,382 17,601
Total Assets 237,093 262,938
Liabilities:    
Notes, at Fair Value (Note 4) 212,396 243,900
Loan Trailing Fee Liability (Note 10) 3,997 3,328
Total Liabilities $ 216,393 $ 247,228
[1] Includes amounts in consolidated variable interest entities (“VIEs”) presented separately in the table below.`
The following table presents the assets and liabilities of consolidated VIEs, which are included in the condensed consolidated balance sheets above. The assets in the table below may only be used to settle obligations of consolidated VIEs and are in excess of those obligations. Additionally, the assets and liabilities in the table below include third-party assets and liabilities of consolidated VIEs only and exclude intercompany balances that eliminate in consolidation. Refer to Note 7, Securitizations, and Note 11, Debt, within the notes to the condensed consolidated financial statements for additional information.

September 30, 2026December 31, 2025
Assets of consolidated VIEs, included in total assets above:
Restricted Cash$9,009 $11,892 
Accounts Receivable3,967 1,376 
Borrower Loans, at Fair Value— 64,400 
Receivable from Credit Card Partner, at Fair Value398,414 99,865 
Total assets of consolidated VIEs$411,390 $177,533 
Liabilities of consolidated VIEs, included in total liabilities above:
Notes Issued by Securitization Trust$320,350 $149,902 
Other Liabilities8,273 2,163 
Total liabilities of consolidated VIEs$328,623 $152,065