Is Missouri processing tax returns?
James Craig
Published Feb 10, 2026
Department of Revenue News Release. The Missouri Department of Revenue will begin accepting and processing e-filed state tax returns for tax year 2020 on Friday, Feb. 12, the same day the IRS will begin accepting and processing federal tax returns for individual filers.
How is Missouri adjusted gross income calculated?
How Income Taxes Are Calculated
- First, we calculate your adjusted gross income (AGI) by taking your total household income and reducing it by certain items such as contributions to your 401(k).
- Next, from AGI we subtract exemptions and deductions (either itemized or standard) to get your taxable income.
Where’s my refund state of Missouri?
To check the status of your Missouri state refund online, go to The first Social Security number shown on your tax return. Select the filing status of your form. Enter the whole dollar amount for your anticipated refund or balance due.
How to apply for individual income tax adjustments in Missouri?
Reset Form Print Form Department Use Only Missouri Department of Revenue 2018 Individual Income Tax Adjustments Form MO-A (MM/DD/YY) Attach to Form MO‑1040. Attach your federal return. See information beginning on page 12 to assist you in completing this form.
Do you need a mo-60 to make an extension payment?
If you are making a payment by credit card, a Form MO-60 is not needed. If you are making an automatic extension payment, you also must use Form MO-60 unless it is made electronically. Use eFile.com and prepare an Missouri tax return to find out what your Missouri state income tax payment will be.
How to amend a Missouri state tax return?
Download the Form MO-1040 for the year of the tax return you are amending from the DOR website or obtain one from your local public library. Obtain a copy of Form MO-A if you itemized your deductions.
When do you get an extension for your Missouri tax return?
You will receive a 6-month extension of time to file your return (not to pay). The extended tax return due date is October 15, 2021. Please be aware that Missouri will not accept the federal extension form as an extension for your Missouri tax return.