Follow the steps to fill out your UT TC-40 online.

1. Click ‘Get Form’ button to obtain the form and open it in the editor.
2. Begin by entering your basic information. Indicate if you are a full-year resident and provide your Social Security number, first name, and last name. If applicable, also enter your spouse's details.
3. Complete the address section with your current address, including city, state, and ZIP code.
4. Select your filing status by entering the corresponding code. Options include single, married filing jointly, married filing separately, head of household, or qualifying widow(er). If selecting married filing jointly or separately, ensure to provide your spouse's name and Social Security number.
5. Input the number of qualifying dependents. Add details for dependents aged 16 and under and any additional dependents.
6. If you wish to contribute to the Election Campaign Fund, select the appropriate code for yourself and your spouse.
7. Enter your federal adjusted gross income from your federal return.
8. List any additions to your income from TC-40A, Part 1, if applicable.
9. Calculate your total income by adding the federal adjusted gross income and any additions.
10. Proceed to enter any subtractions from income, such as state tax refunds and other applicable subtractions according to the TC-40A.
11. Determine your Utah taxable income by taking the total income and applying the relevant deductions, including personal exemptions and standard/itemized deductions.
12. Calculate your Utah tax by applying the state tax rate to your taxable income.
13. If applicable, complete any additional calculation sections such as credits, tax due, and total withholding.
14. Sign the form electronically, ensuring all information is accurate and complete. If filing jointly, include your spouse's signature.
15. Review your completed form. Save changes, and then download, print, or share your form as needed.

Complete your UT TC-40 online today to ensure your state income tax is filed accurately and on time.