v3.26.1
Financial liabilities
6 Months Ended
Jun. 30, 2026
Disclosure of financial liabilities [abstract]  
Financial liabilities Financial liabilities
a)   Breakdown
The following is a breakdown of Grupo Santander's financial liabilities, other than the balances corresponding to the Derivatives - hedge accounting heading, as of 30 June 2026 and 31 December 2025, presented by nature and categories for valuation purposes:
EUR million
30-06-2026
31-12-2025
Financial
liabilities
held for
trading
Financial
liabilities
designated at
fair value through
profit or loss
Financial
liabilities at
amortised cost
Financial
liabilities
held for
trading
Financial
liabilities
designated at
fair value through
profit or loss
Financial
liabilities at
amortised cost
Derivatives52,319 51,968 
Short Positions41,956 44,015 
Deposits99,142 28,164 1,161,212 75,563 30,440 1,072,384 
Central banks7,833 435 17,217 12,385 3,086 18,542 
Credit institutions44,141 1,515 83,615 27,058 1,424 74,692 
Customer47,168 26,214 1,060,380 36,120 25,930 979,150 
Debt instruments— 15,221 332,846 — 11,686 312,704 
Other financial liabilities— 22 49,718 — 22 36,096 
Total
193,417 43,407 1,543,776 171,546 42,148 1,421,184 
b)   Information on issuances, repurchases or redemptions of debt instruments issued
The detail of the balance of debt instruments issued according to their nature is:
EUR million
30-06-2026
31-12-2025
Bonds and debentures outstanding269,438 253,893 
Subordinated30,911 28,859 
Promissory notes and other securities47,718 41,638 
Total debt instruments issued348,067 324,390 
The detail, at 30 June 2026 and 2025, of the outstanding balance of the debt instruments, excluding promissory notes, which at these dates had been issued by Banco Santander or any other Group entity is disclosed below. Also included is the detail of the changes in this balance in the first six months of 2026 and 2025:

EUR million
30-06-2026
Opening balance as at 01-01-2026PerimeterIssuances or placementsRepurchases or
redemptions
Exchange
rate and other
adjustments
Closing balance as at 06-30-26
Bonds and debentures outstanding253,893 4,874 59,911 (53,295)4,055 269,438 
Subordinated28,859 2,696 (1,655)1,006 30,911 
Bonds and debentures outstanding and subordinated liabilities issued282,752 4,879 62,607 (54,950)5,061 300,349 
EUR million
30-06-2025
Opening balance as at 01-01-2025PerimeterIssuances or placementsRepurchases or
redemptions
Exchange
rate and other
adjustments
Closing balance as at 06-30-25
Bonds and debentures outstanding252,765 — 37,180 (32,874)(12,180)244,891 
Subordinated35,461 — 278 (3,147)(1,641)30,951 
Bonds and debentures outstanding and subordinated liabilities issued288,226  37,458 (36,021)(13,821)275,842 
Below is information on the main issuances, placements and redemptions carried out by Banco Santander, S.A. during the first six months of 2026 and 2025:
On 11 June 2026, Banco Santander, S.A. proceeded to buyback for subsequent early amortization for a total nominal amount of USD 701.6 million contingent convertible preferred securities into ordinary shares with ISIN US05971KAH23, which are listed on the "New York Stock Exchange" (the "CCPS"). Following this buyback, the outstanding nominal amount was reduced to USD 298.4 million.
On 3 June 2026, Banco Santander, S.A. carried out an issuance of newly issued contingent convertible preferred securities into the Bank´s ordinary shares (CCPS) in a total nominal amount of USD 1,500 million. The issuance was priced at par, and the distribution on the CCPS, the payment of which is subject to certain conditions and is also discretionary, was set at 7.25% payable quarterly for the first ten years. Thereafter, it will be reset every five years at a rate equal to the five-years U.S. Treasury rate plus a margin of 283.7 basis points.
On 22 April 2026, Banco Santander, S.A. issued EUR 1 billion of subordinated debt with a 12-year maturity. The issuance was priced at 99.834% of par value and carries an annual coupon of 4.25% for the first seven years, with an issuer call option in April 2033. if the notes are not redeemed on that date, the coupon will be reset to a fixed rate equal to the five-year Euro swap rate plus 135 basis points.
On 14 January 2026, Banco Santander, S.A. proceeded to prepay all of the contingently convertible Tier 1 preferred shares with ISIN code XS2102912966, for a total nominal amount of EUR 1,033.4 million.
On 18 March 2025, Banco Santander, S.A. carried out an issue of subordinated debt for an amount of EUR 1,500 million and carrying a 2.50% coupon with ISIN code XS1201001572.
On 17 February 2025, Banco Santander, S.A. prepaid EUR 600.8 million out of a total of EUR 1,500 million of the transaction with ISIN XS1384064587 following the tender announcement launched on 6 February 2025.
On 17 February 2025, Banco Santander, S.A. prepaid EUR 563.6 million euros out of a total of EUR 1,000 million of the transaction with ISIN XS1548444816 following the tender announcement launched on 6 February 2025.
c)    Other issuances guaranteed by Grupo Santander
At 31 June 2026 and 2025, there were no debt instruments issued by associates or non-Group third parties (unrelated) that had been guaranteed by Banco Santander or any other Group entity.
d)   Fair value of financial liabilities not measured at fair value
Following is a comparison between the value by which Grupo Santander’s financial liabilities are recorded that are measured using criteria other than fair value and their corresponding fair value at 30 June 2026 and 31 December 2025:
EUR million
30-06-2026
31-12-2025
Carrying amountFair valueCarrying amountFair value
Deposits1,161,212 1,161,811 1,072,384 1,073,147 
Debt instruments332,846 333,653 312,704 314,173 
Liabilities1,494,058 1,495,464 1,385,088 1,387,320 
Additionally, other financial liabilities are accounted for EUR 49,718 million and EUR 36,096 million as of 30 June 2026 and 31 December 2025, respectively.
The main valuation methods and inputs used in the estimation of the fair value of the financial liabilities in the previous table are detailed in Note 51.c of the consolidated annual accounts for 2025, other than those mentioned in these interim financial statements.