Sumitomo Mitsui Financial Group, Inc. filed a Form 6-K on November 13, 2026, announcing an amendment to its Annual Securities Report for the fiscal year ended March 31, 2026, following the discovery of a fair value measurement error in Monetary claims bought.

Key Highlights

  • Error source: The company disclosed that an error was found in the fair value measurement of Monetary claims bought for the fiscal year ended March 31, 2026.
  • Monetary claims bought reduced: As of March 31, 2026, Monetary claims bought decreased by ¥99,611 million, from ¥6,079,754 million to ¥5,980,143 million (a 1.64% decline).
  • Net unrealized gains reduced: Net unrealized gains (losses) on other securities decreased by ¥68,213 million, from ¥2,185,092 million to ¥2,116,878 million (a 3.12% decline).
  • Total assets impact: Total assets decreased by ¥99,611 million, from ¥328,511,145 million to ¥328,411,534 million (a 0.03% decline).
  • Total net assets impact: Total net assets decreased by ¥68,213 million, from ¥15,933,144 million to ¥15,864,931 million (a 0.43% decline).
  • Offsetting Q1 effect: Other comprehensive income (losses) for the first quarter of the 25th term increased by ¥68,213 million, from ¥224,959 million to ¥293,172 million (a 30.32% increase).
  • Multiple materials corrected: The amendment covers the Annual Securities Report, consolidated financial results, Q1 results for the three months ended June 30, 2026, supplementary information, and Capital Ratio disclosures.

SMFG Amends FY2026 Filings After Fair Value Measurement Error

According to the filing, Sumitomo Mitsui Financial Group, Inc. (NYSE:SMFG) submitted an amendment report for its Annual Securities Report for the 24th term (April 1, 2025, to March 31, 2026) to the Kanto Local Finance Bureau on November 13, 2026. The company disclosed that the corrections were necessary because an error was identified in the fair value measurement of Monetary claims bought. The filing states that consolidated financial statements and related disclosures were corrected accordingly.

As of March 31, 2026, the corrections reduced Monetary claims bought by ¥99,611 million, Deferred tax liabilities by ¥31,397 million (from ¥619,716 million to ¥588,318 million, a 5.07% decrease), and Net unrealized gains (losses) on other securities by ¥68,213 million. Other comprehensive income (losses) for the fiscal year ended March 31, 2026 also decreased by ¥68,213 million, from ¥544,262 million to ¥476,049 million, representing a 12.53% reduction, the filing reported.

The company noted that the correction produces an offsetting effect in the first quarter of the 25th term ending March 31, 2027: Other comprehensive income (losses) for the three months ended June 30, 2026 increased by ¥68,213 million. The filing also stated that an amendment report for the Annual Securities Report of Sumitomo Mitsui Banking Corporation for its 23rd fiscal year (April 1, 2025, to March 31, 2026) was submitted to the Kanto Local Finance Bureau on the same date, and that website-only disclosure materials including Annual Reports were corrected as of that date.

What Was Disclosed

Sumitomo Mitsui Financial Group disclosed a fair value measurement error in Monetary claims bought for the fiscal year ended March 31, 2026, triggering corrections to its consolidated financial statements, annual report, quarterly results, and supplementary capital ratio materials.