Kenneth L. Thomet CPA PLLC

Kenneth L. Thomet CPA PLLCKenneth L. Thomet CPA PLLCKenneth L. Thomet CPA PLLC
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Kenneth L. Thomet CPA PLLC

Kenneth L. Thomet CPA PLLCKenneth L. Thomet CPA PLLCKenneth L. Thomet CPA PLLC
  • Home
  • Our Team
  • OBBBA
  • Our Services
    • Our Services
  • Forms, Dates, and News
    • Forms and Links
    • Calendar
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  • Contact Us

Important Tax Dates

First Quarter

Jan 1st - March 31st

January 15th

Individuals: 4th quarter estimated tax payment for 2025 due

February 15th

Last day to submit documents for Partnerships or S Corporations that will be ready for the March 16th deadline

March 16th

Partnerships: 2025 1065 Tax Return due, or form 7004 for extension due  

S Corporations: 2025 1120S Tax Return due, or Form 7004 request for extension due.​  

S Corporation Election: Form 2553 to elect to be treated as an S-Corp beginning calendar year 2025 due

March 17th

Last day to submit individual tax documents that will be ready by the April 15th deadline


Second Quarter

April 1st - June 30th

April 15th

Individuals: 2025 1040 Tax Return due, or form 4868 for extension due. 

1st Qtr Estimate payment for 2025 taxes due. 

Corporations: 2025 1120 Tax Return due, or form 7004 for extension due.

Trusts: 2025 1041 Tax Return due, or form 7004 for extension due.

April 30th

Businesses: 1st Quarter 941 Payroll Report due 

June 16th

2nd Quarter 2026 Estimated Tax Payment Due


Third Quarter

July 1st - September 30th

July 31st

Businesses: 2nd Quarter 941 Payroll Reports due.

September 15th

Individuals: 3rd quarter estimated payment for 2026 Taxes due. 

Partnerships: Extended 2025 1065 Tax Return due. 

S Corporations: Extended 2025 1120S Tax Return due.

September 30th

Trusts: Extended 2025 Tax Returns due.


Fourth Quarter

October 1st - December 31st

October 15th

Individuals: Extended 2025 1040 Tax Return due.  

Corporations: Extended 2025 1120 Tax Return due.

October 31st

Businesses: 3rd Quarter 941 Payroll Reports due.

November 15th

Businesses: Extended Texas Franchise Tax Reports due.

Non-Profit: Extended 990 Tax Returns due.

To avoid missing a deadline and paying penalties and how to best avoid them, contact us for an appointment to discuss your tax liabilities.

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