How to File Form 843 for PCORI Penalty Abatement(2026)
Article Summary
A PCORI penalty notice isn't automatically correct. Deadline confusion, outdated rates, payment mix-ups, and IRS backlogs all produce penalties that have nothing to do with actual noncompliance.
Missed-deadline errors usually trace back to the IRS misreading a filing date, or applying both a late-filing and late-payment penalty when only one should have applied.
Payment mix-ups are just as common: an EFTPS payment posted to the wrong quarter, a return mailed to an old address, or a submission the IRS marks incomplete, all of which can trigger a penalty even when the fee was paid on time.
Before filing Form 843, gather your filing and payment records, your covered-lives calculation (using an IRS-approved method such as actual count, snapshot, or Form 5500), and the notice itself, since it lists the exact penalty reason and IRC section needed on the form.
On Form 843 (Rev. December 2024), confirm your identifying information, check the abatement box for reasonable cause, enter the tax period and penalty amount, and mark excise tax and Form 720 as the tax and return type, then move on to the explanation.
The explanation carries the most weight. State specific facts and dates, name your reason clearly, show your math for any dollar amount, and attach every supporting document.
File a separate Form 843 for each tax period. Combining periods on one form is a common reason claims get rejected.
Mail the form to the address on the notice, or check the current "Where To File" instructions if filing proactively. Keep certified mail records; a denial isn't final, since appeal rights remain.
A PCORI penalty notice can land in your inbox even when you filed correctly. Missed deadlines, an outdated rate, or a misapplied payment are common culprits, not real noncompliance. Form 843 PCORI Penalty Abatement is the IRS process built for exactly this situation, giving you a formal path to challenge a penalty tied to your Form 720.
Common Reasons a PCORI Penalty May Be Assessed in Error
Most PCORI penalty notices trace back to a handful of recurring issues, not actual noncompliance. Knowing which one applies to you shapes your Form 843 PCORI Penalty Abatement request.
1)Missed or Misread Deadlines
The PCORI fee applies to plan years ending after September 30, 2012, and before October 1, 2029, and is reported once a year on the second-quarter Form 720, due by July 31. If the IRS has the wrong filing date on record, or stacked a late-filing and late-payment penalty when only one actually applied, the notice may simply be wrong.
2)Outdated Rate or Covered-Lives Errors
The IRS adjusts the per-life PCORI rate for inflation each year, so it's worth checking the current rate in the latest Form 720 instructions before assuming an error. Using an old rate, or miscounting covered lives with a method the IRS doesn't recognize, often triggers a penalty that has nothing to do with late filing.
3)Payment or Filing Mix-Ups
Sometimes the fee was paid correctly, and the notice shows up anyway. An EFTPS payment applied to the wrong quarter, a return mailed to an old address, or a submission the IRS treats as incomplete can all generate an automated penalty.
4)IRS Processing Delays
Heavy paper backlogs have led the IRS to generate penalties automatically before an original return is logged. Filing on time doesn't always prevent a notice from arriving.
Gather Proof That Your PCORI Filing Was Completed Correctly
Before touching Form 843, pull together the records that back up your side of the story. A strong PCORI Penalty Relief request rests on documentation, not just an explanation.
Filing and Payment Records - Compare your actual filing date against what the notice claims, and do the same with payment proof, whether an EFTPS receipt, bank statement, or certified mail confirmation.
Covered-Lives Calculation Records - Confirm you used an IRS-approved method, such as actual count, snapshot, or the Form 5500 method, and that the rate matches the correct policy or plan year.
The IRS Notice Itself - Keep a copy of the notice. It states the specific reason for the penalty and the IRC section it was assessed under, both needed later on the form.
Evidence Supporting Reasonable Cause - If your case rests on a natural disaster, a death or serious illness, or reliance on erroneous written IRS advice, gather that documentation now. For erroneous advice, you'll need the original written request and the IRS's incorrect response.
How to Complete Form 843 for a PCORI Penalty Abatement Request
Use the current version of Form 843 and go by field labels rather than memorized line numbers, since exact placement can shift between revisions. Here's the order to work through a Form 843 PCORI Penalty Abatement filing.
Step 1: Confirm Your Identifying Information
Enter your business name, address, and EIN exactly as they appear on IRS records. A mismatch here is a common cause of delays.
Step 2: Check the Reason for Filing
At the top of the form, check the box for abatement or refund of a penalty due to reasonable cause or another reason allowed under the law.
Step 3: Enter the Tax Period, Amount, and Payment Dates
Enter the tax period in the period field (typically the second quarter tied to your PCORI filing), the dollar amount of the penalty you're disputing, and payment dates if you've already paid.
Step 4: Indicate the Tax and Return Type
Indicate Excise tax and Form 720 in the appropriate tax and return-type fields, then enter the IRC section shown on your penalty notice.
Step 5: State Your Reason and Explanation
On the reason and explanation area of the form, state reasonable cause or another allowed reason, and provide your supporting details. If a representative is filing on your behalf, attach a signed Form 2848.
How to Write an Effective Penalty Abatement Explanation
This section of the form carries the most weight overall. A vague statement won't get you anywhere.
State the specific facts and dates tied to your situation.
Clearly name your reason (reasonable cause, erroneous written advice, etc.) and give a concise, dated fact pattern with supporting attachments.
Show your math if you're requesting a specific dollar amount.
Attach every relevant document, including the notice, payment records, and anything tied to your reasonable cause claim.
For erroneous IRS advice claims, attach both your original request and the IRS's response.
File a separate form for each tax period, meaning the second quarter of the calendar year tied to your plan or policy year. Combining periods on one form is a common reason claims get rejected.
Submitting Form 843 and Responding to IRS Follow-Up Requests
Mail Form 843 to the address on your notice if you're responding to one. Otherwise, refer to the "Where To File" section in the current Form 843 instructions for the correct service center.
Given ongoing IRS processing backlogs, expect this to take time. Keep copies of everything, use certified mail for proof of the filing date, and hold onto tracking numbers.
If the IRS asks for more information, respond promptly and stick to the facts already in your explanation. A denial isn't the end of the road, since appeal rights are available.
Conclusion
A PCORI penalty notice isn't automatically correct. Form 843 PCORI Penalty Abatement gives you a formal way to challenge it, provided your explanation is specific and well-documented, backed by accurate filing and payment records.
The best way to avoid this process altogether is to get your PCORI filing right the first time.Filing with Simple720, an IRS-authorized online portal built for accurate, on-time Form 720 filings is the best way you can avoid such unwanted PCORI penalties.
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