Check your refund status through the Missouri Department of Revenue

The Missouri Department of Revenue runs a refund tracker on its website where you can see exactly where your state tax refund stands. You will need your Social Security number and the exact refund amount from your return to look it up. The tracker updates every business day and shows whether your refund is still being processed, has been approved, or has already been sent.

Go to dor.mo.gov and look for the "Where's My Refund?" tool under the Individual Income Tax section. Enter your information and the system will tell you the current status. If your refund was mailed, the tracker will show the date it left the department. If it was sent by direct deposit, you will see the date the money hit your bank account.

The tracker does not show refunds that are still in the initial processing stage — typically the first two to three weeks after you file. If you filed recently and the tool says no record exists yet, check back in a few days.

Key Takeaways

  • Missouri's "Where's My Refund?" tool on dor.mo.gov is the official source for your refund status and updates every business day.
  • Direct deposit refunds typically arrive within 21 days of approval, while mailed checks take an additional 5 to 10 business days after the department mails them.
  • If your refund does not arrive within the expected timeframe, contact the Missouri Department of Revenue at 573-751-3505 with your Social Security number and filing information ready.
  • A missing or delayed refund may be held due to a math error on your return, a matching issue with your W-2s or 1099s, or a debt offset through the state or federal government.

How long Missouri refunds typically take

Missouri processes most refunds within 21 days of receiving your return if you file electronically and request direct deposit. This is the fastest route. The state counts from the date your return is accepted by the Missouri Department of Revenue, not the date you submit it.

If you chose a mailed check instead of direct deposit, add another 5 to 10 business days after the department mails it. The mail itself is not under the state's control, so delays can happen in transit. Once the check leaves the department, the "Where's My Refund?" tool will show the mailing date.

Paper returns take longer to process — typically 4 to 6 weeks — because they must be manually entered into the system before processing begins. If you mailed a paper return, expect the full timeline to be 6 to 8 weeks from the postmark date.

Why your Missouri refund might be delayed

The most common reason for a delay is a mismatch between your return and your W-2s or 1099s. If your employer or financial institution reported different income to Missouri than what you reported on your return, the department will hold the refund while it investigates. This can add 2 to 4 weeks to processing time.

A math error on your return — even a small one — will also trigger a hold. The department catches these automatically and corrects them, but it adds time. You will receive a notice in the mail explaining the correction and the new refund amount.

If you owe money to Missouri or the federal government, or if you have unpaid child support or student loans, your refund may be offset. The state can legally hold your refund to pay these debts. The "Where's My Refund?" tool will not always show this reason, but you can call the department to confirm.

Identity theft or fraud flags can also delay processing. If the department suspects your return is fraudulent, it will hold the refund for manual review. This is rare but can take several weeks to clear.

What to do if your refund is missing or very late

First, check the "Where's My Refund?" tool again to confirm the current status. If the tool shows your refund was mailed more than 10 business days ago and you have not received it, contact the Missouri Department of Revenue at 573-751-3505. Have your Social Security number, filing status, and the refund amount ready.

If the tool shows no record of your return at all and you filed more than three weeks ago, your return may not have been received or accepted. Ask the department to search for it by your Social Security number. If it was not received, you will need to file again or determine whether it was lost in the mail.

If your refund was sent by direct deposit but never arrived in your bank account, ask your bank to search their records for the deposit. Provide them with the date the department says it sent the money. Banks can sometimes locate deposits that appear to have failed. If your bank has no record, contact the department again — the deposit may have been sent to an old account number.

Requesting a trace on a missing mailed check

If the "Where's My Refund?" tool shows your check was mailed but you never received it, the Missouri Department of Revenue can file a trace with the U.S. Postal Service. Call 573-751-3505 and ask for a check trace. You will need to provide the mailing date shown in the system.

A postal trace typically takes 30 to 45 days. During that time, the Postal Service searches its records and attempts to locate the check. If the check is found, it will be returned to the Missouri Department of Revenue, which will then reissue it to you. If it is not found after 45 days, the department will issue a replacement check or send the refund by direct deposit if you provide banking information.

Do not cash a replacement check if the original check arrives later. Contact the department immediately if both arrive so they can stop payment on one of them.

How to prevent delays on next year's return

File electronically rather than by mail. Electronic returns are processed faster and have fewer errors because tax software catches math mistakes before submission. Direct deposit is also faster than a mailed check.

Make sure your Social Security number, name, and filing status match exactly what your employer reported on your W-2. Any mismatch will trigger a hold. If you changed your name, contact your employer to file an amended W-2 before you file your tax return.

Double-check the income amounts on your return against your W-2s and 1099s before you submit. If you know there is a discrepancy, include a note with your return explaining it — this can prevent a hold while the department investigates.

If you have a history of owing money to the state or federal government, or if you have unpaid child support, know that your refund may be offset. There is no way to prevent this, but you can call the Missouri Department of Revenue ahead of time to confirm whether an offset is likely.

Frequently Asked Questions

Can I get my Missouri refund faster if I pay a fee?

No. The Missouri Department of Revenue does not offer expedited processing for any fee. The timeline is the same for all filers. Some tax preparation companies offer refund advance loans, but these are not from the state and come with interest and fees.

What if the "Where's My Refund?" tool says my refund was sent but my bank says it never arrived?

Contact the Missouri Department of Revenue with the date shown in the tool. Provide your bank account number and routing number. The department can verify whether the direct deposit was actually sent and to which account. If it was sent to a closed or wrong account, the department can reissue the refund by check or to a new account.

Do I need to file a Missouri return if I only have federal income?

That depends on your income level and filing status. Missouri has different income thresholds than the federal government. Check the Missouri Department of Revenue website or call 573-751-3505 to determine whether you are required to file. If you filed and are owed a refund, the same tracking process applies.

Can I amend my Missouri return if I already filed?

Yes, you can file an amended return using Form MO-1040-X. You must file it within three years of the original return's due date. If you are waiting for your original refund, wait until it arrives before filing an amendment, because amending will restart the processing clock.

What happens if I move before my refund arrives?

If your refund is being mailed, update your address with the U.S. Postal Service immediately using their mail forwarding service. If your refund was already mailed to your old address, the post office will forward it. If it is still being processed, contact the Missouri Department of Revenue with your new address so they can update their records before mailing.