What is IRS Notice CP523?

IRS Notice CP523 is sent when your installment agreement is in default and the IRS intends to terminate it. This is one of the most serious collection notices — once your agreement is terminated, the IRS can immediately resume levy action (wage garnishment, bank levies, asset seizure) without waiting. The CP523 tells you: the reason for default (missed payment, new tax liability, failure to file a required return), the amount needed to cure the default, the deadline to respond (typically 30 days), and that you have the right to appeal the termination through the Collection Appeals Program (CAP).

What causes an installment agreement to default?

Your installment agreement can default for: (1) Missing one or more monthly payments — the most common cause. (2) Filing a new return with a balance due and not paying it or incorporating it into the agreement. (3) Failing to file a required tax return by the filing deadline (including extensions). (4) Providing inaccurate financial information on the original agreement application. (5) A significant increase in income that wasn't reported to the IRS. (6) Failing to pay estimated taxes if self-employed. The agreement terms require you to stay current on ALL future tax obligations — not just make the monthly payment on old debt.

How do I reinstate my installment agreement?

You have 30 days from the CP523 date to appeal or cure the default. To reinstate: (1) If you missed payments — pay the delinquent amount. The reinstatement fee is typically $89 (increased from $43 in prior years). (2) If you filed late or have a new balance — file the missing return and/or propose a revised agreement that includes the new balance. (3) If your financial situation changed — submit updated financial information (Form 433-F or 433-A) and request a revised payment amount. (4) Call the IRS or have your representative contact the IRS to negotiate reinstatement or restructuring. (5) If reinstatement is denied, you can appeal through the Collection Appeals Program (CAP) within 30 days. (6) If the default was due to financial hardship, you may qualify for a partial-pay installment agreement or currently-not-collectible status instead.

What happens if my agreement is terminated?

The CP523 gives notice of INTENT to terminate — the termination has not yet occurred. If you do not respond and the agreement is actually terminated: (1) the IRS can immediately file a Notice of Federal Tax Lien (NFTL), (2) the IRS can immediately levy your wages, bank accounts, accounts receivable, and other assets, (3) the user fee you paid for the original agreement is forfeited, (4) a new agreement requires paying a new user fee ($89-$225 depending on terms), (5) the Collection Statute Expiration Date (CSED) may have been suspended during the agreement, extending how long the IRS can collect, (6) you can still appeal the termination through CAP after the fact, but levies may already have been issued.

Can I appeal a CP523?

Yes. The CP523 provides appeal rights under the Collection Appeals Program (CAP). Contact the IRS within 30 days of the CP523 date to request a CAP appeal. During the appeal, levy action is generally suspended. In the appeal, you can argue: (1) the default was erroneous — payments were made but not properly credited, (2) the default was caused by circumstances beyond your control (medical emergency, job loss, natural disaster), (3) a revised agreement is appropriate based on changed financial circumstances, (4) the IRS failed to follow proper procedures (e.g., not sending required notices before terminating). If the CAP appeal is denied, you may have additional appeal rights depending on whether the IRS files a lien or issues a levy.

Taxpayer facing installment agreement default

Installment Agreement Default — Intent to Terminate

IRS Notice CP523: Payment Plan in Default

Your installment agreement is about to be terminated. Once that happens, the IRS can levy your wages and bank accounts immediately. You have 30 days to appeal, cure the default, or negotiate a new plan.

Reinstate Your Agreement Call 310-597-2254

Save Your Payment Plan

Confidential and no obligation.

Get Your Free Tax Relief Review

A specialist will review your case and outline your options — completely free.

100% Confidential|CPA-Reviewed|Updated 2026

CP523: You're at the Edge of the Cliff

CP523 marks the final stage before your installment agreement is terminated. Once terminated, the protections of your agreement — no levy action, no new liens — disappear. The IRS can immediately issue wage garnishments, bank levies, and asset seizures. And reinstating after termination is harder and more expensive than curing the default before termination. Do not ignore a CP523. You have options, but the window is short.

Your Options After CP523

Cure the Default

If you missed payments, pay the delinquent amount. If you failed to file a return, file it immediately. This is the simplest path and generally results in reinstatement with a reinstatement fee.

Restructure the Agreement

If your financial situation changed and you can no longer afford the original payment, submit updated financial information (Form 433-F) and propose a lower monthly amount.

Request a CAP Appeal

File a Collection Appeals Program appeal within 30 days. This suspends levy action during the appeal. Argue that the default was erroneous, caused by hardship, or that a restructured agreement is appropriate.

Convert to Currently-Not-Collectible

If your financial situation has deteriorated to the point where you cannot afford any monthly payment, request currently-not-collectible (CNC) status — collection action pauses, but interest accrues.

Submit an Offer in Compromise

If your financial circumstances make full collection unlikely, an OIC can settle the entire balance for less than you owe.

Frequently Asked Questions

I missed one payment — can the IRS really terminate my whole agreement?

Yes. The IRS can terminate an installment agreement for a single missed payment, though in practice they typically send CP523 after two or more missed payments or after a combination of issues (missed payment plus unfiled return). The agreement's terms state that all payments must be made on time, and any default is grounds for termination. That said, a single missed payment is the easiest default to cure — call the IRS or have your representative call, explain what happened, and make the payment.

What if I can no longer afford the monthly payment?

You can request a revised installment agreement with a lower monthly payment by submitting updated financial information (Form 433-F Collection Information Statement). The IRS will recalculate your allowable monthly payment based on your current income minus allowable living expenses. If the recalculated amount is lower, they may approve a revised agreement. If you cannot afford any payment, request currently-not-collectible status.

What is the Collection Appeals Program (CAP) and how does it help with a CP523?

CAP is an expedited, informal appeal available for certain collection actions — including proposed termination of an installment agreement. You file Form 9423 (Collection Appeal Request) within 30 days. A CAP appeal goes to an IRS Appeals officer (not the collection manager who proposed termination) for independent review. The appeal is usually resolved within 30-60 days. During the appeal, levy action is suspended. CAP decisions are binding on the IRS but not on you — if you disagree, you can still pursue Collection Due Process (CDP) if a lien or levy is filed.

Don't Let Your Payment Plan Collapse — Get Help Now

Call 310-597-2254