MO requires that you use the same filing status that you used on your federal return. Filing jointly results in a lower overall tax bill for the majority of married couples.
If you married in 2024, then you can file both your federal and your Missouri 2024 tax returns as Married Filing Jointly (MO uses the term "combined" instead of "joint").
If your husband lived in Texas all year and had no earnings from Missouri, then his income is not taxable by MO. In this situation your MO return should include MO Form MO-NRI. Form MO-NRI allows you to separate out the portion of your joint income that is not taxable by MO by determining your Missouri income percentage, which is then entered on Line 32 of your MO-1040. See the instructions for Line 32 on page 10 of the MO-1040 instructions here:
https://dor.mo.gov/forms/MO-1040%20Instructions_2023.pdf
Your MO tax due will be calculated based on your Missouri income percentage.
**Answers are correct to the best of my ability but do not constitute tax or legal advice.
