IRS Form 9423: How to Use the Collection Appeals Request

IRS Form 9423, the Collection Appeal Request, gives taxpayers a fast, formal way to challenge specific IRS collection actions — including liens, levies, seizures, and installment agreement terminations — before or during the collection process.

When the IRS is actively trying to collect a debt, it moves quickly. Knowing how to use the Collection Appeals Program (CAP) can be the difference between stopping a levy and losing a bank account. Here's what the form does, when to use it, and how to file it correctly.

What Is the IRS Collection Appeals Program?

CAP is an IRS program that lets you request an independent review of certain collection actions. It's handled by IRS Appeals — a separate function from the collection division — and it's designed to resolve cases fast. Most CAP conferences wrap up within a few business days of the hearing.

Form 9423 is the document that starts the process.

CAP isn't a general-purpose dispute tool. It covers a specific list of collection actions, not broader tax liability questions.

Which Collection Actions Can You Appeal with Form 9423?

The following are eligible:

Notice of Federal Tax Lien (NFTL) filing — A lien attaches to your property and affects credit.
Levy — The IRS seizing wages, bank accounts, or other assets.
Seizure — Physical seizure of property.
Denial, termination, or modification of an installment agreement — If the IRS rejected your payment plan or canceled an existing one.
Rejection of a lien withdrawal request — If you've resolved the underlying debt and the IRS denied your request to pull the lien.

If you're already facing IRS collection activity and your situation fits one of these categories, the CAP is worth using quickly — deadlines are short.

How Is CAP Different from a CDP Hearing?

This is the question most people don't think to ask. Two main appeal routes exist when the IRS is collecting:

Collection Due Process (CDP) — Filed on Form 12153. Slower, often months to resolve. The major advantage: you preserve the right to take the dispute to Tax Court if the outcome is unfavorable.

Collection Appeals Program (CAP) — Filed on Form 9423. Much faster, typically resolved within weeks of filing. The tradeoff: the decision is final. CAP outcomes cannot be appealed to Tax Court.

When speed matters most — stopping an imminent levy, for instance — CAP makes sense. When the underlying tax liability is disputed and Tax Court access might matter, CDP is the stronger route.

One firm rule: you generally cannot use both programs on the same issue.

What Are the Deadlines for Form 9423?

Lien filing: Request the CAP conference within 5 business days of the lien notice.
Levy or seizure: You can file before the action occurs or after. If filed before, the IRS is supposed to hold the action while the appeal is pending.
Installment agreement rejection or termination: File within 30 days of the notice.

These deadlines are strict. Missing them typically forfeits CAP access for that action. Poor tax planning and unpaid estimated taxes are common reasons taxpayers end up in collection in the first place — preventing it is almost always the better path.

How to Fill Out Form 9423

The form is one page. Here's what it asks:

Personal information — Name, address, SSN or EIN, and the tax periods involved.
Collection action being appealed — Check the applicable box (lien, levy, seizure, installment agreement).
Reason for disagreement — This is the part that matters. Write a clear, factual explanation of why the action was improper or why a different approach is warranted. Be specific. Vague objections carry no weight.
Requested outcome — State exactly what you want: lien withdrawal, levy release, installment agreement reinstatement, etc.

The form is signed under penalty of perjury. Keep a complete copy of everything you submit.

Good documentation is your best asset at any CAP conference. If your financial records are disorganized, getting monthly bookkeeping support in place before the next IRS notice can make a real difference.

Where Do You Send IRS Form 9423?

There is no single central mailing address. You submit Form 9423 to the IRS employee or office that took the collection action — typically the revenue officer assigned to your case, the IRS campus that handled your installment agreement, or the office that filed the lien.

The form itself asks you to identify the IRS employee and office involved, which guides where it goes. If you received a notice with contact information, that's your starting point.

The current form and instructions are available directly at IRS.gov — search "Form 9423" and download from the official IRS site. Always use the version from IRS.gov; third-party versions can be outdated.

What Happens After You File?

Once the IRS receives Form 9423, it goes to the Appeals function. An appeals officer — independent from the collection division — contacts you to schedule a conference, usually by phone.

At the conference, you present your case. The appeals officer reviews whether the collection action followed proper IRS procedures and whether it was appropriate given your circumstances. It's not a courtroom proceeding. It's a structured conversation with someone who has authority to resolve the dispute.

A decision typically comes within a few business days of the conference. If the appeal succeeds, the IRS reverses or modifies the action. If it doesn't, that's generally the end of that issue under CAP — no further appeal to Tax Court is available.

What If Form 9423 Isn't the Right Tool?

CAP addresses how the IRS is collecting, not whether the underlying tax is owed. If you believe the IRS has the wrong dollar amount — meaning you dispute the liability itself — CAP won't help with that.

For liability disputes, the right path might be audit reconsideration, an amended return, or a CDP hearing (if the deadline hasn't passed). For business owners dealing with payroll tax issues or entity-level IRS problems, the process often involves more than a single form. Getting professional guidance on IRS problems early — before deadlines expire — generally opens more options.

This is general information, not tax advice for your specific situation. Talk to a qualified tax professional before taking action on an active IRS collection matter.

Frequently asked questions

What is IRS Form 9423 used for?

Form 9423 is the Collection Appeal Request. It's used to request a CAP hearing with IRS Appeals to challenge specific collection actions — liens, levies, seizures, and installment agreement rejections or terminations — through a fast-track review process.

Where do I send IRS Form 9423?

There is no single mailing address. You submit the form to the IRS employee or office that took the collection action — typically the revenue officer on your case or the IRS office that issued the notice. The form asks you to identify that employee and office, which determines where it goes.

How long does the Collection Appeals Program take?

CAP is designed to be fast. The IRS aims to hold a conference and issue a decision within a few business days of the hearing. The full process — from filing to decision — typically takes a few weeks, far faster than a Collection Due Process hearing.

Can I appeal a CAP decision to Tax Court?

No. CAP decisions are final — there is no Tax Court access afterward. This is the key tradeoff compared to a Collection Due Process hearing, which does preserve Tax Court rights. If that access matters for your situation, CDP (Form 12153) is the route to consider instead.

Should I handle Form 9423 myself or work with a tax professional?

The form is simple. The conference strategy is not. When significant assets or complex business tax issues are on the line, professional representation at the CAP conference is worth considering. A qualified tax professional with a signed Form 2848 can represent you throughout the process. A free consultation can help you determine whether representation makes sense for your situation.

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