Sumitomo Mitsui Financial Group (NYSE: SMFG) corrects interim lease disclosures

Rhea-AI Filing Summary

Sumitomo Mitsui Financial Group, Inc. filed an amended Form 6-K to correct a note in its interim Japanese GAAP financial statements for the six months ended September 30, 2023. The change updates the table of future minimum payments for non‑cancelable operating leases, increasing the “due after 1 year” amounts to ¥254,038 million as of March 31, 2023 and ¥252,142 million as of September 30, 2023, and raising the corresponding totals to ¥288,690 million and ¥288,641 million. The amendment states that no other parts of the original Form 6-K furnished on December 5, 2023 are being revised.

Insights

Equity research analyst

SMFG corrects operating lease disclosure, with higher future lease obligations reported.

Sumitomo Mitsui Financial Group is amending its prior interim filing to fix a specific footnote on non‑cancelable operating leases. The corrected table shows materially higher “due after 1 year” lease payment amounts and higher total future minimum lease payments at March 31, 2023 and September 30, 2023 than previously reported.

This change affects disclosure around off‑balance‑sheet commitments under Japanese GAAP but is limited to the lease note. The company explicitly states that no other sections of the earlier Form 6-K are being amended, so revenues, profits, and other line items remain as originally presented.

Because this amendment is narrowly focused on the lease disclosure, its practical effect depends on how investors assess lease commitments in their valuation and risk work. Future filings using Japanese GAAP can provide additional context on whether similar corrections are necessary or whether this update fully aligns the lease note with the underlying contracts.

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K/A

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE

SECURITIES EXCHANGE ACT OF 1934

For the month of December 2025

Commission File Number 001-34919

SUMITOMO MITSUI FINANCIAL GROUP, INC.

(Translation of registrant’s name into English)

1-2, Marunouchi 1-chome, Chiyoda-ku, Tokyo 100-0005, Japan

(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F:   

Form 20-F ☒ Form 40-F ☐

THIS REPORT ON FORM 6-K SHALL BE DEEMED TO BE INCORPORATED BY REFERENCE INTO THE PROSPECTUS FORMING A PART OF SUMITOMO MITSUI FINANCIAL GROUP, INC.’S REGISTRATION STATEMENT ON FORM F-3 (FILE NO. 333-276219) AND TO BE A PART OF SUCH PROSPECTUS FROM THE DATE ON WHICH THIS REPORT IS FURNISHED, TO THE EXTENT NOT SUPERSEDED BY DOCUMENTS OR REPORTS SUBSEQUENTLY FILED OR FURNISHED.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Sumitomo Mitsui Financial Group, Inc.
By:		/s/ Kazuyuki Anchi
		Name:		Kazuyuki Anchi
		Title:		Senior Managing Executive Officer  Group Chief Financial Officer

Date: December 4, 2025

Information furnished on this form:

Correction to the Interim Consolidated Japanese GAAP Financial Statements of Sumitomo Mitsui

Financial Group, Inc. as of and for the six months ended September 30, 2023

The registrant is furnishing this amendment for the purpose of correcting its report on Form 6-K that was originally furnished to the SEC on December 5, 2023 (the “Original 6-K”), to correct the following disclosure under “(Notes to lease transactions) 2. Operating leases.” The corrected portions have been underlined. Except as set forth below, no amendments to the Original 6-K are being made hereby.

(Excerpt from the Original 6-K prior to correction)

(1) Lessee side

Future minimum lease payments on operating leases which were not cancelable were as follows:

		Millions of yen
		March 31, 2023				September 30, 2023
Due within 1 year		¥	34,651			¥	36,498
Due after 1 year			186,778				184,882
Total		¥	221,429			¥	221,381

(Excerpt from the Original 6-K as amended hereby)

(1) Lessee side

Future minimum lease payments on operating leases which were not cancelable were as follows:

		Millions of yen
		March 31, 2023				September 30, 2023
Due within 1 year		¥	34,651			¥	36,498
Due after 1 year			254,038				252,142
Total		¥	288,690			¥	288,641

(End of Corrections)

FAQ

What did Sumitomo Mitsui Financial Group (SMFG) change in this Form 6-K/A?

Sumitomo Mitsui Financial Group, Inc. corrected the note titled “(Notes to lease transactions) 2. Operating leases” in its interim Japanese GAAP financial statements, updating the table of future minimum payments for non‑cancelable operating leases.

Which period of SMFGs financial statements is affected by this correction?

The correction applies to the Interim Consolidated Japanese GAAP Financial Statements of Sumitomo Mitsui Financial Group, Inc. as of and for the six months ended September 30, 2023.

How did SMFGs reported future operating lease payments change?

The amended table reports “due after 1 year” operating lease payments of ¥254,038 million as of March 31, 2023 and ¥252,142 million as of September 30, 2023, with total future minimum payments of ¥288,690 million and ¥288,641 million, respectively.

Does this Form 6-K/A change any other parts of SMFGs original 6-K?

No. The company states that except for the corrected lease disclosure, no amendments are being made to the Form 6-K that was originally furnished on December 5, 2023.

Is this amended 6-K incorporated into SMFGs F-3 shelf registration?

Yes. The report will be deemed incorporated by reference into the prospectus forming part of Sumitomo Mitsui Financial Group, Inc.s Form F-3 registration statement (File No. 333-276219).