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IRS CP523: intent to terminate your installment agreement

Last updated · Reviewed for accuracy against IRS.gov guidance

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Quick answer

A CP523 notice means you've defaulted on your IRS installment agreement and the IRS intends to terminate it and levy your assets. Make the missed payment before the termination date on the notice, or contact the IRS right away to reinstate the agreement — a reinstatement fee may apply.

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What does a CP523 mean?

CP523 (and CP623) is sent when an installment agreement goes into default — most often because of a missed payment, but also because of a new balance from a later year or an unfiled return. The notice gives a termination date. Until then, the agreement can usually be saved. The IRS notes you may have to pay a reinstatement fee or pay any new tax liability in full.

Where does CP523 fit in the IRS process?

A default notice comes after you've already set up a payment plan. If the agreement terminates, your account goes back into active collection: the IRS can file a lien and, once the required levy notices have been issued, levy wages and bank accounts. You have separate rights to appeal a termination through the Collection Appeals Program.

How do I know a CP523 is real?

Scam letters copy IRS formatting, so confirm a CP523 before acting on it. Log in to your IRS Online Account — most notices, balances and payment history appear there — or request an account transcript. A genuine notice shows a notice or letter number (usually in the top or bottom right corner), the tax year, and explains your rights. If you call, use a number you find on IRS.gov, not a number printed only on a letter you're unsure about. The IRS doesn't demand payment by gift card, prepaid debit card, cryptocurrency or wire to an individual, and it doesn't threaten immediate arrest.

How long do I have to respond to a CP523?

Act before the termination date printed on the notice. That date is your real deadline.

How do I dispute a CP523?

If you believe the default is an error — for example, a payment was made but misapplied — call the IRS at the number on the notice before the termination date with proof of payment. If the IRS terminates the agreement anyway, you can appeal the termination through the Collection Appeals Program (Form 9423), and a timely CAP request generally keeps the IRS from levying while the appeal is considered.

What happens if I ignore a CP523?

After termination the IRS resumes collection: it may file a federal tax lien and levy wages, bank accounts or other property. You'd then have to apply for a new agreement, possibly with more financial disclosure.

What are my options if I can't pay?

If you owe and can't pay in full, you have options:

  • Pay in full online through IRS Direct Pay or your Online Account to stop further interest and penalties.
  • Short-term plan of up to 180 days, with no setup fee.
  • **Installment agreement** — individuals who owe $50,000 or less in combined tax, penalties and interest can usually apply online. Larger balances generally need a financial statement (Form 433-F or 433-A).
  • **Currently Not Collectible** status if paying would prevent you from covering basic living expenses.
  • **Offer in Compromise** only if you can't realistically pay the full amount before the collection statute expires — most applicants don't qualify.
  • **Penalty relief**, including first-time abatement, which can remove failure-to-file and failure-to-pay penalties.

Interest (currently 7% a year, set quarterly) continues on any unpaid balance.

Who can help with a CP523 for free?

You don't need to pay anyone to respond to a CP523. The Taxpayer Advocate Service, an independent organization inside the IRS, helps people whose problems aren't being resolved through normal channels or who face significant hardship. Low Income Taxpayer Clinics offer free or low-cost representation to eligible taxpayers, including in disputes with the IRS. Volunteer programs such as VITA can help prepare missing returns. If you do hire paid help, choose a credentialed professional — a CPA, enrolled agent or attorney — who can represent you before the IRS with Form 2848, and be wary of anyone who guarantees an outcome, demands large upfront fees, or tells you to stop communicating with the IRS. See red flags to watch for.

Step-by-step: responding to a CP523

  1. Read the whole notice and note the date, tax year and any deadline.
  2. Verify it in your IRS Online Account or with a transcript.
  3. Gather records — the return, payment proof and any documents the notice mentions.
  4. Decide: agree and pay/verify, dispute with documentation, or request the hearing or appeal the notice describes.
  5. Respond in writing or by the method shown, before the deadline, and keep copies and proof of mailing.
  6. Get help if needed. You can authorize a CPA, enrolled agent or attorney with Form 2848, and the Taxpayer Advocate Service or a Low Income Taxpayer Clinic may help for free.

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Frequently asked questions

How do I reinstate a defaulted installment agreement?

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Pay the missed amount and contact the IRS before the termination date; you may be charged a reinstatement fee.

Why did I default if I made every payment?

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Defaults can also be triggered by a new unpaid balance or a missing tax return. Check your transcript.

Can I appeal a termination?

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Yes, through the Collection Appeals Program using Form 9423.

Can I call the number on my CP523?

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Confirm the number on IRS.gov first. Legitimate IRS notices list a number, but scammers copy letters, so cross-check before sharing information.

Should I hire a tax relief company for a CP523?

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Not necessarily. Many people resolve notices themselves. If you hire help, choose a credentialed CPA, enrolled agent or attorney and avoid anyone who guarantees a result.

Is this site affiliated with the IRS?

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No. We're an independent educational site. Always rely on the official IRS page for your notice, linked in the sources below.

Related topics

Sources

IRS figures on this page (rates, fees, thresholds) verified as of 2026-11-04. See our editorial policy.

TaxSettlementCalculator.com is not a tax firm, law firm, CPA, or government agency and is not affiliated with the IRS or any state tax agency. Estimates are for educational purposes only and are not tax, legal, or financial advice. Results vary based on individual circumstances, and no outcome is guaranteed. We connect users with independent tax relief professionals.

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