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Missouri 1040-2026
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- Click ‘Get Form’ to open the Missouri 1040 in the editor.
- Begin by entering your name and address in the designated fields. Ensure that you include your spouse's information if applicable.
- Fill in your Social Security number and that of your spouse, if filing jointly. Check the appropriate boxes regarding age, disability, or blindness.
- Input your federal adjusted gross income from your federal return on Line 1. Follow this by adding any total additions on Line 2.
- Calculate your total income by adding Lines 1 and 2, then subtract any subtractions listed on Line 4 from this total to find your Missouri adjusted gross income on Line 5.
- Proceed to complete the exemptions and deductions section, ensuring you select the correct filing status and enter any applicable amounts.
- Finally, review all entries for accuracy before saving or exporting your completed form directly from our platform.
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Related links
Dec 31, 2025 Calculate your Missouri tax using the online tax calculator at dor.mo.gov/personal/individual/ or by using the worksheet in Section B below.Read more
Send an email to ContactMCS@modot.mo.gov for a paper copy of the Missouri Vehicle Route Map. 1-800-829-1040. USDOT Numbers. Federal Motor Carrier Safety.Read more
If you are single or married with one income, you can probably use the MO-1040A. There is a longer MO-1040 form that married couples with two incomes must use.Read more