6-K

UNITED STATESSECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16OF THE SECURITIES EXCHANGE ACT OF 1934

For the month of February, 2025

Commission File Number: 001-37915

Fortis Inc.

Fortis Place, Suite 11005 Springdale StreetSt. John's, Newfoundland and LabradorCanada, A1E 0E4

(Address of Principal Executive Office)

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 ☒

EXHIBITS

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.

Exhibit 99.1

St. John's, NL – February 14, 2025

FORTIS INC. FILES 2024 YEAR-END DISCLOSUREDOCUMENTS

This news release constitutes a "DesignatedNews Release" incorporated by reference in the prospectus supplement dated December 9, 2024 to Fortis' short form base shelf prospectusdated December 9, 2024.

Fortis Inc. ("Fortis" or the "Corporation") (TSX/NYSE: FTS), today filed its audited Consolidated Financial Statements, related Management Discussion and Analysis and Form 40-F for the year ended December 31, 2024, as well as its 2024 Annual Information Form, with Canadian securities regulatory authorities. The Corporation also filed its Form 40-F for the year ended December 31, 2024 with the U.S. Securities and Exchange Commission. Copies of these documents are available electronically at www.sedarplus.ca (Canadian filings), www.sec.gov (U.S. filings) and the Corporation's website, www.fortisinc.com, or by emailing investorrelations@fortisinc.com.

The Management Information Circular for the Corporation's upcoming Annual Meeting of Shareholders is expected to be made available to shareholders in late March.

About Fortis

Fortis is a well-diversified leader in the North American regulated electric and gas utility industry with 2024 revenue of $12 billion and total assets of $73 billion as at December 31, 2024. The Corporation's 9,800 employees serve utility customers in five Canadian provinces, ten U.S. states and three Caribbean countries.

Fortis shares are listed on the TSX and NYSE and trade under the symbol FTS. Additional information can be accessed at www.fortisinc.com, www.sedarplus.ca, or www.sec.gov.

For further information contact