Form MO-1040 - Individual Income Tax Return

What Is MO 1040 Form

The MO 1040 form is the primary personal income tax form for residents of the state of Missouri. Similar to the federal 1040 form, this state-specific form is used to report income, calculate tax liability, and claim credits or deductions available under Missouri law. The state offers different versions, including the MO-1040 long form, which is a more detailed document suited for taxpayers with complex financial situations.

Who Should File Form MO-1040

Missouri residents who have earned income during the tax year are generally required to file a state income tax return using the MO 1040 form. The type of form you should use—whether the basic MO 1040 or the MO-1040 long form—depends on your specific tax situation. Here are some guidelines:

• Simple Finances: If your financial situation is straightforward, with a regular income and limited deductions or credits, you can use the standard MO 1040 form.
• Complex Finances: If you have a complex financial situation, such as multiple income streams, large deductions, or credits that require detailed calculations, you'll likely need to file the MO-1040 long form.
• Non-residents: If you are not a resident but have earned income in Missouri, you may also need to file an MO 1040 form.

Filling Out MO 1040 Tax Form

Filling out the MO 1040 form is a multi-step process that requires careful attention. Here's a quick guide to help you through it:

1. Start by providing your personal information, including your name, address, and Social Security number.
2. In this section, you'll list your income sources. Your information can be found on your W-2 form, 1099 forms, and other income statements.
3. If you have any adjustments to your income, such as alimony payments or student loan interest, you'll list them here.
4. Here, you'll calculate your tax liability based on the income and adjustments you've entered. The MO 1040 form will have a table or formula to help you determine the amount.
5. Missouri offers several credits and deductions, from personal exemptions to credits for education. Consult the form instructions to see which you qualify for.
6. Subtract your credits and deductions from your calculated tax to determine the amount you owe or the refund you're entitled to receive.
7. After double-checking your numbers and reviewing the form for accuracy, sign and date the form.

How To File Printable MO 1040 Form

Missouri offers several options for filing your MO 1040 form:

File Online

Missouri's online tax filing system allows you to file your MO 1040 fillable form electronically, which is convenient and secure.

Mail

​​​​​​​You can download a printable MO 1040 form from the state's tax website, fill it out here, and mail it to the appropriate address listed in the instructions.

If there is a balance due:

If you need a refund or no amount due:

Filing by the deadline, usually April 15th, is essential to avoid late penalties.