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):

May 31, 2012

TAMPA ELECTRIC COMPANY

(Exact name of registrant as specified in its charter)

702 North Franklin Street, Tampa, Florida 33602

(Address of principal executive offices and zip code)

(813) 228-1111

(Registrant’s telephone number, including area code)

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:

Item 8.01. Other Events.

On May 31, 2012, Tampa Electric Company (the “Company”) entered into an Underwriting Agreement (the “Underwriting Agreement”) with BNY Mellon Capital Markets, LLC, Mitsubishi UFJ Securities (USA), Inc., SunTrust Robinson Humphrey, Inc. and Wells Fargo Securities, LLC, as representatives of the several underwriters listed therein (collectively, the “Underwriters”) pursuant to which the Company agreed to sell and the Underwriters agreed to purchase, upon the terms and subject to the conditions set forth therein, $300 million aggregate principal amount of 4.1% Notes due 2042 (the “Notes”). The Notes will be issued under a ninth supplemental indenture (the “Indenture”) with The Bank of New York Mellon, as trustee. The offering of the Notes is expected to close on June 5, 2012. Tampa Electric Company plans to use the net proceeds from this offering to repay maturing long-term debt, to repay short-term debt and for general corporate purposes.

In order to furnish certain exhibits for incorporation by reference into the Registration Statement on Form S-3 of TECO Energy, Inc. and the Company, previously filed with Securities and Exchange Commission (File No. 333-179719-02), the Company is filing the Underwriting Agreement as Exhibit 1.4 to such Registration Statement and the opinion of Edwards Wildman Palmer LLP, regarding the validity of the Notes to be sold by the Company pursuant to such Underwriting Agreement as Exhibit 5.2 to such Registration Statement.

Item 9.01. Financial Statements and 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 hereunto duly authorized.

Exhibit Index