Form TC-40 (2023): Utah Individual Income Tax Return

The TC-40 is the official form used by Utah residents to file their individual income tax returns for the tax year 2023. It is used to report your total taxable income in Utah, claim deductions and credits, and ultimately calculate the amount of income tax you owe to the state.

Who Needs to File a TC-40?

A. Generally, all Utah residents who earned income in 2023 must file a TC-40, even if they have already filed a federal tax return.

B. There are exceptions for certain nonresidents who worked in Utah for 20 days or less (SB 39). Refer to the instructions for details.

Key Information about the TC-40:

  • Tax Rate: The Utah income tax rate for 2023 is 4.65% (HB 54).
  • Filing Deadline: The deadline to file your 2023 TC-40 is April 17, 2024 (extended to the next business day if it falls on a weekend or holiday). Extensions can be obtained until October 15, 2024.
  • Payment: You can prepay your estimated tax liability through withholding, previous year refunds, or by the due date using designated methods.

What Information Do I Need to File a TC-40?

  • Your federal tax return (Form 1040) and any relevant schedules.
  • W-2 forms showing your wages and withholdings.
  • 1099 forms for interest, dividends, and other income.
  • Records of deductions and credits you may be eligible for.

Where to Find the Form and Instructions:

You can download the TC-40 form and instructions attached below.

Important Deadlines:

Filing: The deadline to file your 2023 TC-40 is typically April 15th, 2024. However, this date can shift if it falls on a weekend or holiday.

Extension: If you need more time to file, you can request an extension until October 15th, 2024, by filing form TC-40X.

To access the current year's Form TC-40, click here.