Form 843 is the single form that handles two different situations with the IRS: getting back penalties you already paid (refund), or canceling penalties you haven't paid yet (abatement). Same form, different boxes checked.
Most taxpayers never hear about Form 843 because tax software doesn't surface it. But if you've been hit with a failure-to-file penalty, failure-to-pay penalty, or accuracy penalty, and you have a legitimate reason why it should be removed, this is the form.
When you'd actually use it
- First-Time Penalty Abatement (FTA): If you've had a clean filing record for the past 3 years, the IRS will remove one penalty assessment automatically. File Form 843 referencing FTA.
- Reasonable Cause: You were hospitalized, a natural disaster hit, your accountant died: genuine circumstances that prevented compliance. Document it on Line 7.
- Protective Claims: Preserving refund rights tied to pending litigation (see: Kwong v. United States).
- Statutory errors: The IRS miscalculated something. It happens more than people think.
Filing mechanics (as of July 2026)
- Individuals with an IRS Online Account can submit electronically.
- Business entities must still mail paper forms via certified mail.
- Processing time: 30-60 days for electronic, 90-120 days for paper.
- Include: tax period, penalty type, amount, specific legal authority for relief.
What Form 843 cannot do
It cannot claim a refund of income tax itself. That requires Form 1040-X (amended return). Form 843 is exclusively for penalties, interest, fees, and additions to tax.
