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

For the month of June, 2026

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): ☐

June 08, 2026

Securities and Exchange Commission - SEC

Re.: MATERIAL EVENT

Dear Sirs:

Intercorp Financial Services Inc. (“IFS”) notifies you, as a Material Event, that on June 08, 2026 FitchRatings (“Fitch”) affirmed the long-term ratings at BBB with a Stable outlook, and its short-term ratings at F3. In addition, Fitch affirmed its long-term and short-term ratings for Banco Internacional del Peru S.A.A. ("Interbank"), one of IFS' subsidiaries, at BBB and F3, respectively, also with a Stable outlook.

Sincerely,

/s/ Michela Casassa Ramat

Chief Financial Officer

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.