[6-K] TELEFONICA BRASIL S.A. Current Report (Foreign Issuer)

Rhea-AI Filing Summary

Telefônica Brasil S.A. (VIV) declared Interest on Capital totaling R$380,000,000.00, with a 15% withholding tax, resulting in a net distribution of R$323,000,000.00, based on the balance sheet of September 30, 2025. The declared amount per share is R$0.11856605026 gross and R$0.10078114272 net.

The record date is October 27, 2025, after which shares trade ex-IoC. Payment will be made by April 30, 2026, with the exact date to be set by the Executive Board. Under the Company’s Bylaws, this IoC will be considered part of the mandatory dividends for the fiscal year ending December 31, 2025, ad referendum of the Ordinary General Shareholders’ Meeting in 2026. The per-share amount may be adjusted to reflect share repurchases under the current buyback program. Shareholders eligible for tax immunity or exemption must provide proof by November 03, 2025 to Banco Bradesco S.A.

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of October, 2025

Commission File Number: 001-14475

TELEFÔNICA BRASIL S.A.
(Exact name of registrant as specified in its charter)

TELEFONICA BRAZIL S.A. (Translation of registrant’s name into English)

Av. Eng° Luís Carlos Berrini, 1376 -  28º andar
São Paulo, S.P.
Federative Republic of Brazil
(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 X 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):

Yes No X 

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):

Yes No X 

TELEFÔNICA BRASIL S.A.

Publicly Held Company

Corporate Taxpayer’s ID (CNPJ) 02.558.157/0001-62

Company Registry (NIRE) 35.3.001.5881-4

NOTICE TO SHAREHOLDERS

DELIBERATION OF INTEREST ON CAPITAL

Telefônica Brasil S.A. (“Company”) communicates its Shareholders that its Board of Directors, at a meeting held on October 14, 2025, approved the declaration of Interest on Capital (“IoC”), pursuant to Article 26 of the Company’s Bylaws, Article 9 of Law 9,249/95 and CVM Resolution 143/2022, in the gross amount of R$380,000,000.00 (three hundred and eighty million reais), withholding income tax at the rate of 15%, resulting in the net amount of R$323,000,000.00 (three hundred and twenty-three million reais), based on the balance sheet of September 30, 2025. The amount per share is described in the table below:

Type of Payment	Declaration Date	Shareholding Position	Gross Amount per Share (R$)¹	Withholding Income Tax (15%)	Net Amount per Share (R$)¹
Interest on Capital	10/14/2025	10/27/2025	0.11856605026	0.01778490754	0.10078114272

¹ Amount per share calculated based on the shareholding position of September 30, 2025.

As established in the article 26 of the Company’s Bylaws, said IoC will be considered as part of the mandatory dividends for the fiscal year ending on December 31, 2025, ad referendum of the Ordinary General Shareholders’ Meeting to be held in 2026.

The IoC will be paid individually to each shareholder, based on the shareholding position in the Company’s records at the end of October 27, 2025. After this date, the shares will trade as “ex-IoC”. The payment of these proceeds will be made by April 30, 2026, with the Company’s Executive Board being responsible for setting the exact date.

The amount per share of Interest on Capital may be adjusted according to the Company’s shareholding base on October 27, 2025, due to possible acquisitions of shares under the current Company's Share Buyback Program.

TELEFÔNICA BRASIL S.A.

Publicly Held Company

Corporate Taxpayer’s ID (CNPJ) 02.558.157/0001-62

Company Registry (NIRE) 35.3.001.5881-4

Shareholders who are immune to or exempt from income tax, in accordance with the current legislation, must prove such conditions by November 03, 2025, to the Shares and Custody Department of Banco Bradesco S.A., the depositary institution of the Company’s book-entry shares, located at Cidade de Deus, s/n, Prédio Amarelo Velho, subsolo – Vila Yara – Zip Code: 06029-900 – Osasco – SP.

São Paulo, October 14, 2025.

David Melcon Sanchez-Friera

CFO and Investor Relations Officer

Telefônica Brasil – Investor Relations

Email: ir.br@telefonica.com

https://ri.telefonica.com.br/en

SIGNATURE

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.

			TELEFÔNICA BRASIL S.A.
Date:	October 14, 2025		By:	/s/ João Pedro Carneiro
				Name:	João Pedro Carneiro
				Title:	Investor Relations Director

FAQ

What did Telefônica Brasil (VIV) announce regarding shareholder returns?

The company declared Interest on Capital of R$380,000,000.00, with a net total of R$323,000,000.00 after 15% withholding tax.

What is the per-share IoC amount for Telefônica Brasil (VIV)?

Per share, the IoC is R$0.11856605026 gross and R$0.10078114272 net.

What are the key dates for the IoC from Telefônica Brasil (VIV)?

Record date is October 27, 2025; shares trade ex-IoC after that date. Payment will occur by April 30, 2026.

How will this IoC be treated in Telefônica Brasil’s 2025 results?

It will be considered as part of the mandatory dividends for the fiscal year ending December 31, 2025, ad referendum of the 2026 OGM.

Can the per-share IoC change for Telefônica Brasil (VIV)?

Yes. The per-share amount may be adjusted based on the shareholding base on October 27, 2025 due to the company’s buyback program.

What tax applies to Telefônica Brasil’s IoC and who must act?

A 15% withholding tax applies. Shareholders with tax immunity or exemption must prove it by November 03, 2025 to Banco Bradesco S.A.