UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of

The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): October 28, 2013

ALTRIA GROUP, INC.

(Exact name of registrant as specified in its charter)

Registrant’s telephone number, including area code: (804) 274-2200

(Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

On October 28, 2013, Altria Group, Inc. issued the press release attached as Exhibit 99.1 hereto and incorporated herein by reference.

In accordance with General Instruction B.2 of Form 8-K, the information in Item 7.01 of this Current Report on Form 8-K, including Exhibit 99.1 hereto, shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section. The information in Item 7.01 of this Current Report on Form 8-K shall not be incorporated by reference into any filing or other document pursuant to the Securities Act of 1933, as amended, except as shall be expressly set forth by specific reference in such filing or document.

On October 28, 2013, Altria Group, Inc. (“Altria”) issued a press release announcing that it has commenced a cash tender offer (the “Tender Offer”) for up to $2.0 billion aggregate principal amount of its senior unsecured notes identified in the press release (the “Notes”). Concurrently, Altria has commenced an underwritten public offering of new senior unsecured notes (the “New Notes”). A copy of the press release is attached as Exhibit 99.1 hereto and is incorporated herein by reference, except for the sections “2013 Full-Year EPS Guidance” and “2013 Full-Year Tax Rate Guidance.”

This Current Report on Form 8-K is neither an offer to sell nor a solicitation of offers to buy any securities. The Tender Offer is being made only pursuant to the Offer to Purchase and the related Letter of Transmittal. The Tender Offer is not being made to holders of Notes in any jurisdiction in which the making or acceptance thereof would not be in compliance with the securities, blue sky or other laws of such jurisdiction. The offering of the New Notes is being made only by means of a prospectus and related prospectus supplement, which may be obtained by visiting the Securities and Exchange Commission’s website at www.sec.gov.

2013 Full-Year EPS Guidance

Altria expects to record a one-time pre-tax charge of approximately $1.1 billion, or $0.35 per share, against reported earnings in the fourth quarter of 2013, reflecting the estimated loss on early extinguishment of debt related to the Tender Offer (the “Estimated Charge”). The Estimated Charge assumes current market pricing and that $2.0 billion in Notes are tendered. The final pre-tax charge will vary to the extent that the pricing and amount of Notes tendered differ from Altria’s original assumptions. Altria has revised its guidance for 2013 full-year reported diluted earnings per share (“EPS”) from a range of $2.57 to $2.62 to a range of $2.22 to $2.27, reflecting the Estimated Charge. This revised forecast reflects estimated total net expenses of $0.14 per share, as detailed in the table below, as compared with 2012 full-year reported diluted EPS of $2.06, which included $0.15 per share of net expenses, as detailed in the table below. Expected 2013 full-year adjusted diluted EPS, which excludes the items in the table below, represents a growth rate of 7% to 9% over 2012 full-year adjusted diluted EPS.

The factors described in the Forward-Looking and Cautionary Statements section of the press release attached as Exhibit 99.1 hereto represent continuing risks to this forecast.

2

Adjusted diluted EPS is a financial measure that is not consistent with accounting principles generally accepted in the United States of America (“U.S. GAAP”). Altria’s management reviews diluted EPS on an adjusted basis, which excludes certain income and expense items that management believes are not part of underlying operations. These items may include, for example, loss on early extinguishment of debt, restructuring charges, SABMiller plc (“SABMiller”) special items, certain PMCC leveraged lease items, certain tax items, tobacco and health judgments, and settlements of, and determinations made in, certain NPM Adjustment disputes. Altria’s management does not view any of these special items to be part of its sustainable results as they may be highly variable and difficult to predict and can distort underlying business trends and results. Altria’s management believes it is appropriate to disclose this non-GAAP financial measure to provide useful insight into underlying business trends and results, and to provide a more meaningful comparison of year-over-year results. Adjusted measures are used by management and regularly provided to Altria’s chief operating decision maker for planning, forecasting and evaluating business and financial performance, including allocating resources and evaluating results relative to employee compensation targets. This information should be considered as supplemental in nature and not considered in isolation or as a substitute for the related financial information prepared in accordance with U.S. GAAP.

3

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 hereunto duly authorized.

DATE: October 28, 2013

4

EXHIBIT INDEX

5