v3.26.1
Condensed Financial Information of Registrant (SMFG) - Condensed Income Statement (Detail) - JPY (¥)
¥ in Millions
 12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2024
Income:      
Interest income ¥ 6,928,743 ¥ 6,716,741 ¥ 5,944,398
Dividends from other subsidiaries, associates and joint ventures 128,021 124,326 115,667
Fees and commission income from subsidiaries 1,805,095 1,631,319 1,469,847
Other income [1] 230,942 105,717 112,208
Expense:      
Interest expense 4,096,058 4,202,307 4,053,635
Operating and other expense [1] 3,026,892 2,917,319 2,690,719
Profit before tax 1,555,030 654,246 1,207,789
Income tax expense 360,070 137,802 312,039
Net profit 1,194,960 516,444 895,750
Profit attributable to:      
Shareholders 1,137,557 478,132 873,346
Other equity instruments holders 49,868 31,636 13,763
SMFG [member]      
Income:      
Fees and commission income from subsidiaries 23,611 21,498 21,722
Other income 30,066 5,197 9,655
Total income 1,462,487 1,437,287 946,516
Expense:      
Interest expense 401,553 350,428 313,356
Operating and other expense 63,906 71,586 58,418
Total expense 498,110 443,448 387,321
Profit before tax 964,377 993,839 559,195
Income tax expense (11,345) (12,355) (8,670)
Net profit 975,722 1,006,194 567,865
Profit attributable to:      
Shareholders 925,854 974,558 554,102
Other equity instruments holders 49,868 31,636 13,763
SMFG [member] | Sumitomo mitsui banking corporation [member]      
Income:      
Interest income 464,381 391,543 334,964
Dividends from other subsidiaries, associates and joint ventures 868,070 731,201 542,929
Expense:      
Interest expense 20,754 12,071 5,586
SMFG [member] | Other subsidiaries, associates and joint ventures [member]      
Income:      
Dividends from other subsidiaries, associates and joint ventures 75,851 287,848 37,246
SMFG [member] | Other subsidiaries [member]      
Income:      
Interest income 508    
Expense:      
Interest expense ¥ 11,897 ¥ 9,363 ¥ 9,961
[1] From the fiscal year ended March 31, 2025, the Group has presented “Net gains (losses) arising from derecognition of financial assets at amortized cost” as a separate line item in the consolidated income statements. This line item was not presented separately prior to the fiscal year ended March 31, 2025, but was included within “Other income” and “Other expenses.” The comparative amounts have been restated to conform to the current presentation.