UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

Form 6-K

REPORT OF FOREIGN PRIVATE ISSUER

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

SECURITIES EXCHANGE ACT OF 1934

August 11, 2025

Commission File Number 001-38965

INTERCORP FINANCIAL SERVICES INC.

(Registrant’s name)

Intercorp Financial Services Inc.

Torre Interbank, Av. Carlos Villarán 140

La Victoria

Lima 13, Peru

(51) (1) 615-9011

(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 ☐

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

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

On August 11, 2025, Intercorp Financial Services Inc. (“IFS”) announced its unaudited results for the second quarter of 2025, which were approved by the Board on August 11, 2025. IFS’ interim condensed consolidated unaudited results as of June 30, 2025, March 31, 2025 and for the six-month periods ended June 30, 2025 and 2024 and the corresponding Management Discussion and Analysis are attached hereto.

EXHIBIT INDEX

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.