Penalties & Compliance

How to Respond to an IRS Penalty Notice for a Foreign-Owned LLC

9 min readArticle
Decision path

Penalty exposure & response path

How a late or missed filing turns into a penalty — and how to respond.

  1. Identify the trigger

    Late filing, late payment, or an information-return miss.

  2. Quantify the exposure

    Penalties accrue per form and per period.

  3. File and pay

    Stop further accrual by getting current.

  4. Request relief

    Reasonable cause or first-time abatement, where eligible.

Key formsForm 5472Form 1120Notice response

Key Takeaways

  • The stage of the IRS notice determines the right response path.
  • Some abatement requests can start by phone, but written requests often use Form 843.
  • A denied abatement request may still be appealed.
  • Appeal deadlines can be short and should be checked immediately.

Start by identifying what stage the case is in

A founder who receives an IRS notice should first ask whether this is an initial penalty notice, a denial of penalty relief, or an appeal-rights letter. The IRS penalty-appeal page says you generally need a denial of your written abatement request before filing an appeal with the Independent Office of Appeals.

That staging question determines what you do next.

How to request relief the IRS will actually process

The IRS penalty-relief page says some relief can be requested by phone using the number on the notice, but if relief cannot be approved that way, the taxpayer may request relief in writing with Form 843. The About Form 843 page confirms that the form is used to request abatement of certain penalties and additions to tax.

If you are writing, make the package organized: notice copy, timeline, forms filed, reasonable-cause explanation, and supporting records.

What happens if the IRS says no

The IRS penalty-appeal page says taxpayers generally have 30 days from the rejection letter date to request an appeal, subject to the letter's specific deadline. That means a denied abatement request is not the end of the process, but the response window can be short.

Notices are manageable when the founder responds in order: identify the stage, request the right relief, then appeal if needed.

Frequently Asked Questions

Can I ask for penalty relief over the phone?

Sometimes yes. The IRS says some penalty relief can be requested by phone using the number on the notice, but written requests may still be necessary.

What form is commonly used to request penalty abatement in writing?

The IRS says Form 843 is used to request abatement of certain penalties, additions to tax, interest, and similar items.

If the IRS denies my penalty relief request, am I done?

Not necessarily. The IRS penalty-appeal page says a taxpayer may be able to request an Appeals conference after receiving a denial letter.

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