Form 5472 Continuation Penalty Timeline Guide (2025-2026)
Penalty exposure & response path
How a late or missed filing turns into a penalty — and how to respond.
Identify the trigger
Late filing, late payment, or an information-return miss.
Quantify the exposure
Penalties accrue per form and per period.
File and pay
Stop further accrual by getting current.
Request relief
Reasonable cause or first-time abatement, where eligible.
Key Takeaways
- Form 5472 continuation penalties can begin after 90 days from IRS notification.
- The penalty can keep compounding by related party and time period.
- Notice handling should focus on closing the underlying filing or record gap quickly.
- A written dispute without a substantive repair can leave the timeline running.
The first penalty is not always the last one
The current Form 5472 instructions say that if the failure continues for more than 90 days after notification by the IRS, an additional $25,000 penalty applies. It continues with respect to each related party for each 30-day period, or part of a 30-day period, while the failure continues after the 90-day period ends. Founders often focus on the first notice and underestimate how quickly the continuation structure can make the file more expensive.
The clock turns notice-handling into a process discipline problem
Once a notice arrives, the issue is no longer just whether the return was weak or late. It is whether the business can identify the failure, repair it, and document the repair fast enough. A company that argues in circles while the underlying filing gap remains open is effectively letting the timeline harden against it.
Build the response around closure of the underlying gap
A notice response should not be only an explanation letter. It should pair the dispute position with whatever filing correction, record production, or completeness repair is needed so the IRS can see the failure is no longer continuing.
Frequently Asked Questions
When does the additional Form 5472 penalty start?
The instructions say it applies if the failure continues for more than 90 days after IRS notification.
Can the continuation penalty apply more than once?
Yes. The IRS says it can apply for each related party for each 30-day period or part of a period while the failure continues after the 90-day mark.
What should a notice response try to accomplish first?
It should try to close the underlying filing or record failure, not only argue about it.
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