1934 Act Registration No. 1-14700

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

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FORM 6-K

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REPORT OF FOREIGN PRIVATE ISSUER

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

THE SECURITIES EXCHANGE ACT OF 1934

For the month of March 2026

(Commission File Number: 001-14700)

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Taiwan Semiconductor Manufacturing Company Limited

(Translation of Registrant’s Name Into English)

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No. 8, Li-Hsin Road 6

Hsinchu Science Park

Hsinchu 300-096, Taiwan
Republic of China
(Address of Principal Executive Offices)

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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 x Form 40-F o

Indicate by check mark if the registrant is submitting the Form 6-K in papers as permitted by Regulation S-T Rule 101(b)(1): o

Indicate by check mark if the registrant is submitting the Form 6-K in papers as permitted by Regulation S-T Rule 101(b)(7): o

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.

Taiwan Semiconductor Manufacturing Company Limited

Date: March 2, 2026

/s/ Wendell Huang

Wendell Huang

Senior Vice President and Chief Financial Officer

Adjustment to Cash Dividend Per Share

TSMC Board of Directors on November 11, 2025 approved to distribute NT$155,595,147,126 as cash dividend (NT$6.0 per common share) for the third quarter of 2025, and the dividend will be paid on April 9, 2026. Due to the reclamation of shares from 2022, 2023 and 2024 restricted stock awards during the period between the date the Company's board approved said dividend distribution and the record date of the distribution, the number of common shares outstanding has changed slightly, resulting in a miniscule difference in the dividend per share compared to the original amount approved by the Company's board. The cash dividend for the third quarter of 2025 is hereby adjusted to NT$6.00003573 per common share.

TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD 6-K