The IRS sends you a confirmation number when your return is accepted

If you filed electronically, the IRS accepts or rejects your return within 24 to 48 hours. When they accept it, you get a confirmation number — either on screen right after you file, or in an email from the IRS within a few hours. That number is your proof the return made it through. If you filed on paper by mail, acceptance takes longer and you won't get a confirmation number at all; instead, the IRS will contact you only if there's a problem.

The confirmation number looks like a string of digits and letters. Write it down or take a screenshot. You'll need it if you ever have to contact the IRS about this return, and it's the clearest sign that your filing was successful.

Key Takeaways

  • E-filed returns get a confirmation number within 24 to 48 hours, sent to you on screen or by email — that number means the IRS accepted your return.
  • Paper returns don't produce a confirmation number; the IRS only contacts you if something is wrong.
  • You can check the status of your refund on IRS.gov using your Social Security number, filing status, and refund amount.
  • The IRS processes most refunds within 21 days of acceptance, but some take longer if they need to verify information.
  • If your return was rejected, your tax software or the IRS will tell you why, and you can file again once you fix the problem.

Where to find your confirmation number if you filed electronically

When you e-file through tax software (TurboTax, H&R Block, TaxAct, or another provider), the confirmation number appears on your screen as soon as you submit. Most software shows it in a summary page labeled "Confirmation" or "Filing Complete" — read it carefully and save it. If you didn't write it down, check your email: the IRS sends a confirmation email to the address you provided, usually within a few hours of filing.

If you filed through a tax preparer or accountant, they should have given you the confirmation number in writing or email. If you can't find it, contact them and ask for it by name — they have it in their records.

How to check your refund status on IRS.gov

The IRS has a tool called "Where's My Refund?" on IRS.gov. Go to the IRS homepage, find the link (it's usually near the top), and enter three pieces of information: your Social Security number, your filing status (single, married filing jointly, etc.), and the exact refund amount from your return. The tool will tell you whether the IRS has accepted your return and where your refund is in the process.

This tool updates once a day, usually overnight. If you just filed, wait at least 24 hours before checking — it won't show anything until the IRS has processed your return. The tool will show one of three statuses: "Return Received" (accepted but not yet processed), "Approved" (the IRS approved your refund and it's being prepared for payment), or "Sent" (the refund has been mailed or deposited).

What happens if your return was rejected

If the IRS rejects your return, your tax software will usually tell you when ready — it will show an error message with a code and explanation. Common reasons include a missing signature, a mismatched Social Security number, or income reported on a form that doesn't match what your employer reported. The error message will tell you which line or form has the problem.

Once you know what's wrong, you can fix it and file again. There's no penalty for filing a corrected return, and you can file as many times as you need to get it right. If the error is something you can't fix yourself — like a mismatch with your employer's records — you may need to contact your employer or the IRS for help.

The difference between acceptance and approval

Acceptance and approval are two different things. Acceptance means the IRS received your return and it passed basic checks — the format is correct, the numbers add up, and you signed it. That's what your confirmation number proves. Approval means the IRS reviewed your return in detail, verified the information, and decided your refund amount is correct. Approval usually takes 21 days or longer.

You can have an accepted return that later gets rejected during approval if the IRS finds a problem — for example, if income you reported doesn't match what your employer reported, or if you claimed a credit you don't actually may have access to for. If this happens, the IRS will contact you by mail with an explanation and next steps.

Paper returns and acceptance confirmation

If you mailed your return, you won't get a confirmation number. The IRS doesn't send a receipt for paper returns. Instead, the IRS processes your return silently, and you only hear from them if there's a problem. This can take weeks or months.

If you want proof you mailed it, keep a copy of your return and mail it with tracking — use certified mail with return receipt so you have a record the IRS received it. You can also call the IRS at 1-800-829-1040 after six weeks and ask whether they received your return, though they may not have processed it yet.

What to do if you can't find your confirmation number

If you filed electronically but can't find your confirmation number, check your email first — search for messages from the IRS or your tax software. If you still can't find it, use "Where's My Refund?" on IRS.gov. That tool doesn't require your confirmation number; it only needs your Social Security number, filing status, and refund amount. If the tool shows your return as "Return Received" or beyond, your return was accepted.

If the tool shows nothing and you're certain you filed, wait 24 more hours and try again. The IRS updates the tool once daily. If you still see nothing after two days, contact your tax software provider to confirm the return was actually submitted — sometimes a filing fails without a clear error message.

Frequently Asked Questions

What if I filed but never got a confirmation number or email?

Check your email spam folder first. If it's not there, use "Where's My Refund?" on IRS.gov with your Social Security number, filing status, and refund amount. If that shows your return as received, it was accepted even without a confirmation email. If the tool shows nothing after 24 hours, contact your tax software to confirm the return was submitted.

Can I file a second return if I think my first one was rejected?

Only if you're sure it was rejected. Check "Where's My Refund?" first — if it shows "Return Received" or "Approved", your return was accepted and you should not file again. Filing twice can delay your refund and create problems. If you need to make changes, you'll file an amended return (Form 1040-X) after the original is processed.

How long does it take for the IRS to accept my return after I file?

E-filed returns are usually accepted within 24 to 48 hours. Paper returns take much longer — sometimes weeks — because they have to be scanned and entered by hand. You won't know if a paper return was accepted until the IRS processes it or contacts you with a problem.

Does my confirmation number mean I'm getting a refund?

No. A confirmation number means the IRS accepted your return as filed. It doesn't mean your refund was approved or that you actually owe a refund. The IRS will review your return during processing and may find you owe money instead, or that your refund is smaller than you expected.

What should I do if "Where's My Refund?" says my return was rejected?

The tool will usually show a reason or error code. Check your email and tax software for details about what went wrong. Once you fix the problem, file again. Common fixes include adding a missing signature, correcting a Social Security number, or adjusting income that didn't match your W-2 or 1099.