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): ~~March 6~~November 20, 2025

TAMPA ELECTRIC COMPANY

(Exact name of registrant as specified in its charter)

Florida	1-5007	59-0475140
(State or other jurisdictionof incorporation)	(Commission File Number)	(IRS Employer Identification No.)
(State or other jurisdiction of incorporation)	(Commission File Number)	(IRS Employer Identification No.)

~~TECO~~Midtown ~~Plaza~~East Tower 3600 Midtown Drive Tampa, Florida 33607 (Address of principal executive offices)

702 N. Franklin Street

Tampa, Florida 33602

(Address of principal executive offices)

(813) 228-1111

(Registrant’s telephone number, including area code)

N/A

(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:

☐	Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐	Soliciting material pursuant to Rule 14a-12 under the Securities Act (17 CFR 240.14a-12)

☐	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act: None

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act (§230.405 of this chapter) or Rule 12b-2 of the Exchange Act (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 1.01.

Entry into a Material Definitive Agreement.

On ~~March~~November 620, 2025, Tampa Electric Company (~~the~~ “~~Company~~Tampa Electric”) ~~completed~~amended ~~its~~and ~~previously~~restated ~~reported~~its ~~offering of~~ $~~600.0~~800 million ~~aggregate~~bank ~~principal~~credit ~~amount~~facility, ofentering ~~5.15%~~into ~~Notes~~a ~~due~~Ninth ~~2035~~Amended and Restated Credit Agreement (the “~~Notes~~Revolving Credit Agreement”). ~~The~~with ~~Notes~~Wells ~~were~~Fargo ~~sold~~Bank, atNational 99Association, as Administrative Agent, Wells Fargo Securities, LLC, JPMorgan Chase Bank, N.~~731%~~A., ofMUFG ~~par~~Bank Ltd., Canada Branch, The ~~offering~~Bank ~~resulted~~of inNova ~~net~~Scotia, ~~proceeds~~Morgan toStanley ~~the~~Senior ~~Company~~Lending, ~~(after~~Inc. ~~deducting~~and ~~underwriting~~Royal ~~discounts~~Bank ~~and~~of ~~commissions~~Canada, as Joint Lead Arrangers and ~~estimated~~Joint ~~offering~~Bookrunners, ~~expenses)~~JPMorgan ofChase ~~approximately~~Bank, ~~$592~~N.~~7 million~~A. Inas ~~connection~~Syndication ~~with~~Agent, ~~completing~~MUFG ~~the~~Bank, ~~issuance~~Ltd., Canada Branch, The Bank of Nova Scotia, Morgan Stanley Senior Lending, Inc. and ~~sale~~Royal Bank of ~~the~~Canada ~~Notes~~as Documentation Agents, and the ~~Company~~following ~~entered~~lenders: ~~into~~Wells aFargo ~~nineteenth~~Bank, ~~supplemental~~National ~~indenture~~Association, ~~(the~~JPMorgan ~~“Nineteenth~~Chase ~~Supplemental~~Bank, ~~Indenture”)~~N.A., ~~with~~Morgan Stanley Bank, N.A., MUFG Bank, Ltd., Canada Branch, Royal Bank of Canada, The Bank of ~~New~~Nova ~~York~~Scotia, ~~Mellon~~Bank of America N.A., asBank ~~trustee~~of Montreal, Canadian Imperial Bank of Commerce, The Toronto-Dominion Bank, and Truist Bank (the “~~Trustee~~Lenders”). The Revolving Credit Agreement contains customary representations and warranties, ~~supplementing~~events of default, and financial and other covenants; increases the ~~Indenture~~total ~~dated~~commitment ~~July~~from $800 million to $1,.2 billion; ~~1998~~extends (the ~~“Base~~maturity ~~Indenture”~~date of the existing credit facility from December 1, 2028 to November 20, 2030; and ~~together~~provides ~~with~~for interest to accrue at variable rates based on the ~~Nineteenth~~secured ~~Supplemental~~overnight ~~Indenture~~financing rate administered by the Federal Reserve Bank of New York, ~~and~~plus a margin, or, as ~~otherwise~~an ~~amended~~alternative ~~and~~to ~~supplemented~~such interest rate, at an interest rate equal to ~~date~~a margin plus the highest of the prime rate of Wells Fargo Bank, National Association, the ~~“Indenture”)~~federal funds rate plus 0.50%, or the one-month secured overnight financing rate plus 1.00%.

The ~~Notes~~foregoing ~~mature~~description onof ~~March 1,~~the ~~2035,~~Revolving ~~and~~Credit ~~bear~~Agreement ~~interest~~is atqualified ain ~~rate~~its ofentirety ~~5.15%~~by ~~per~~reference ~~annum.~~to ~~The Company will pay interest on~~ the ~~Notes~~complete ~~semi-annually~~text ~~in arrears on March 1 and September 1~~ of ~~each~~the ~~year,~~Revolving ~~beginning~~Credit ~~on September 1~~Agreement, ~~2025.~~which ~~Interest~~is onfiled ~~the~~as ~~Notes~~Exhibit ~~will~~10.1 beto ~~computed~~this onReport ~~the~~and ~~basis~~incorporated ofherein ~~a 360-day year~~by ~~comprised of twelve 30-day months~~reference.

AtThe ~~any~~Lenders ~~time~~are ~~prior~~lenders tounder ~~December 1,~~other ~~2034,~~credit ~~the~~facilities ~~Company may redeem all or any part~~ of ~~the~~Tampa ~~Notes~~Electric atand its ~~option~~affiliates, atand aaffiliates ~~redemption price equal to the greater~~ of ~~(i) 100% of~~ the ~~principal~~Lenders ~~amount~~have of the Notes to be redeemed or (ii) the sum of the present values of the remaining payments of principal and interest on the Notes to be redeemed, discounted to the redemption date on a semiannual basis at the applicable treasury rate (as defined in the ~~Indenture),~~past ~~plus 15 basis points (0.15%)~~provided, ~~less~~and ~~interest accrued to the date of redemption;~~ in ~~each case,~~ the ~~redemption~~future ~~price~~may ~~would include accrued and unpaid interest thereon to~~provide, ~~but~~investment ~~excluding~~banking, ~~the redemption date. At any time on or after December 1~~underwriting, ~~2034~~lending, ~~the~~commercial ~~Company~~banking ~~may at its option redeem the Notes, in whole or in part, at 100% of the principal amount being redeemed plus accrued~~ and ~~unpaid~~other ~~interest~~advisory ~~thereon~~services to, ~~but~~Tampa ~~excluding,~~Electric ~~the~~and ~~date~~its ~~of redemption~~affiliates.

The Indenture provides that each of the following is an event of default (“Event of Default”): (i) the Company fails to pay any interest on the Notes when due, and such failure has continued for 30 days; (ii) the Company fails to pay the principal of or premium, if any, on the Notes when due; (iii) the Company fails to perform any other covenant in the Indenture (other than a covenant in the Indenture solely for the benefit of a series of debt securities other than the Notes), and such failure has continued for 90 days after the Company receives written notice as provided in the Indenture; or (iv) certain events of bankruptcy or insolvency of the Company as described in the Indenture.

If any Event of Default occurs and is continuing, the Trustee or the holders of at least 25% in principal amount of the then outstanding Notes may declare the principal amount of all the Notes to be immediately due and payable. Under some circumstances, the holders of a majority in principal amount of the outstanding Notes may rescind and annul that declaration and its consequences.

The Notes are unsecured and rank equally with the Company’s other unsecured and unsubordinated indebtedness.

The preceding description of the Indenture and the Notes is qualified in its entirety by the Base Indenture as originally filed with the Securities and Exchange Commission on June 3, 1998, and incorporated by reference as Exhibit 4.3 to the Company’s Registration Statement on Form S-3 (File No. 333-267890), as amended and supplemented to date, and the Nineteenth Supplemental Indenture and the Notes filed herewith as Exhibits 4.11 and 4.12, respectively, and incorporated herein by reference.

Affiliates of the Trustee in the past have provided, and may in the future provide, investment banking, underwriting, lending, commercial banking and other advisory services to the Company and its affiliates.

Item 2.03.

Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant.

The information provided in Item 1.01 of this Current Report on Form 8-K is incorporated by reference into this Item 2.03.

Item 8.01. Other Events.

In order to furnish certain exhibits for incorporation by reference into the Registration Statements on Form S-3 of the Company previously filed with Securities and Exchange Commission (File No. 333-267890), the Company is including the Nineteenth Supplemental Indenture as Exhibit 4.11 hereto and the Notes as Exhibit 4.12 hereto.

Item 9.01.

Financial Statements and Exhibits.

(d) Exhibits.

4.11		Nineteenth Supplemental Indenture dated as of March 6, 2025, between Tampa Electric Company, as issuer, and The Bank of New York Mellon, as trustee, supplementing the Indenture dated as of July 1, 1998, as amended. Filed herewith.
10.1		Ninth Amended and Restated Credit Agreement, dated November 20, 2025, by and among Tampa Electric Company, as Borrower, with Wells Fargo Bank, National Association, as Administrative Agent, and the Lenders party thereto.
4.12		Notes. Filed herewith.
104		Cover Page Interactive Data File (embedded within the Inline XBRL document).

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: March 7, 2025

TAMPA ELECTRIC COMPANY (Registrant)

Date: November 25, 2025

TAMPA ELECTRIC COMPANY (Registrant)

/s/ Michelle V. Szekeres

Michelle V. Szekeres

Corporate Secretary

Associate General Counsel and Corporate Secretary

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