IRS Notice CP523: What It Means and How to Keep Your Payment Plan

What a CP523 Notice Is, and Why It Arrived

CP523 is the IRS notice that your installment agreement is about to be terminated. The heading on the notice reads Notice of intent to levy, Intent to terminate your installment agreement, and both halves mean what they say. The IRS has found a default under the agreement, and the notice names it. The law lists three grounds. The first is a missed installment. The second is a new tax balance that was not paid when it came due. The third is a request for updated financial information that went unanswered. The second ground is the one that surprises people, because an agreement with every payment made on time can default the day a new year's return is filed with a balance the taxpayer cannot pay.

The notice states the past-due amount, and paying that amount is what the IRS means when it says the required payments. The notice also says, in its own words, that the agreement will be terminated 30 days from the date of the notice if those payments are not made. Federal law is behind that sentence. The IRS has to give 30 days of advance notice, with its reasons, before it alters, modifies or terminates any installment agreement, and the one exception is where the IRS decides collection is in jeopardy.

The notice is not the Final Notice that starts a collection due process clock. The CP523 is a notice of intent to levy under the levy statute, the same way a CP504 is, and it warns that a state income tax refund or other property may be taken. What it does not do by itself is confer the right to the hearing that has a courtroom behind it. Our CDP page sorts the notices that carry that right from the ones that only read as if they do.

The 30 Days Before Termination, and the 30 After

The notice gives one number and the law gives a second one. The agreement terminates 30 days from the date printed on the notice unless the default is cured or an appeal is requested. During those 30 days the agreement is still in effect, which means the levy protection that comes with an installment agreement is still in effect too.

The second 30 days begins at termination. Once the agreement ends, the IRS cannot levy for 30 days, and if an appeal of the termination is filed inside those 30 days, the levy bar continues for as long as the appeal is pending, unless the IRS believes collection is in jeopardy. The right to appeal also runs for those same 30 days after termination. So a person who does nothing has 30 days before the agreement ends and a further 30 days before a levy can issue, and the appeal window covers both stretches with one limit. An appeal filed before termination cannot be filed again after termination takes effect.

Two practical rules follow. Count from the date printed on the notice rather than the day it reached you, because a notice that chased an old address has spent part of its window in the mail. And if the appeal goes by post, the postmark has to fall inside the period, so keep proof of the mailing date.

What Terminating the Agreement Lets the IRS Do

Termination puts the full remaining balance back on demand. The monthly figure you negotiated is gone, every period the agreement covered is collectible in full, and interest keeps running on all of it.

Then the collection ladder resumes where the agreement paused it. The CP523 is itself the written notice of intent to levy the law requires, and after the 30-day bar the IRS can reach a state income tax refund without any further hearing. Whether a bank account or a paycheck can be reached next turns on one question, which is whether a Final Notice offering a collection due process hearing already went out for those tax periods before the agreement was signed. If one did, the IRS owes no second one, and a levy on wages or accounts can follow. If none did, a Final Notice with its own 30 days has to come first, and that notice opens the hearing described on the CDP page. The CP504 page covers the earlier notice on the ladder, the one that reads like a final notice and starts no hearing clock at all.

A third consequence reaches the passport. For 2026 a tax debt over $66,000 is seriously delinquent for passport purposes once a federal tax lien has been filed and its hearing rights have run, or once a levy has issued, and the law excludes a debt that is being paid on time under an installment agreement. The exclusion ends with the agreement. A pending request for a new agreement is on the IRS's own list of reasons it will hold off certifying a debt to the State Department, which is one more reason the replacement request should go in without waiting.

How to Keep the Agreement Before It Terminates

The cheapest fix is the cure. The notice says the agreement terminates unless the past-due amount is paid, and the IRS's own appeal publication says the agreement continues if the default is cured. So the first question is whether the default the notice names can be fixed inside the 30 days. For a missed installment, the fix is paying the past-due amount the notice states. For a new balance, the fix is paying it, or asking the IRS to modify the agreement to cover it, because the same law that requires 30 days of notice before a termination speaks of alterations and modifications as well. For a request for financial information, the fix is sending the information.

Call the number on the notice before the 30 days run, write down the date of the call and what was agreed, and follow the call with the payment or the paperwork the same week. Curing keeps the original agreement and its terms. Reinstating a terminated agreement costs a reinstatement fee, and the IRS posts the current amount, so the 30 days before termination are worth more than the 30 after.

How to Appeal a CP523 Through CAP

The appeal on a CP523 is the Collection Appeals Program, called CAP, and the request is Form 9423. Federal law requires the IRS to provide an independent administrative review of a terminated installment agreement to anyone who asks for one, and CAP is how the IRS meets that requirement. The notice itself points to the program and the form. A request can go in during the 30 days before termination or during the 30 days after it, and a mailed request has to be postmarked inside the period.

CAP is narrow, and two limits decide whether it is the right tool. First, CAP does not let you argue that you do not owe the tax or that the amount is wrong. The IRS publication says so in plain terms, and it says you cannot go to court if you disagree with the CAP decision. Second, one appeal is all you get, because an appeal filed before termination cannot be filed again after termination takes effect. So the appeal is for a termination that should not have happened, or for a default that can be explained, and the balance itself has to be fought somewhere else, which is the subject of the section on a wrong balance below.

Filing inside the 30 days after termination has one immediate effect. The levy bar that runs for those 30 days continues for as long as the appeal is pending, unless the IRS believes collection is in jeopardy.

Reinstating or Replacing the Agreement Afterward

An agreement that has terminated can be reinstated or replaced, and the two are different requests. Reinstatement restores the old agreement, and the IRS charges a reinstatement fee for it, with the current amount printed on the notice and posted on irs.gov. A new agreement is a fresh request, and it is the right move when the old monthly figure no longer fits, because the new balance made the old payment too small or because income fell.

There are three routes when the old payment no longer fits, and they are the same three a collection hearing puts on the table. The first is a new installment agreement at a figure the financial statement supports. The second is currently not collectible status, where the IRS agrees there is nothing to take for now. The third is an offer in compromise, where the number that decides it is your reasonable collection potential, and our offer in compromise calculator works that number out. All three are decided on the same financial statement, so the statement is prepared once and prepared carefully.

A pending request for a new agreement does two things while the IRS considers it. The ten-year collection clock stops, and the balance sits on the IRS's list of debts it will not certify for passport action while the request is pending.

How a Terminated Agreement Affects the Ten-Year Clock

The IRS has ten years from the date of assessment to collect, and each assessed period has its own date. The agreement, its termination, and what you do next all touch that clock. A pending request for an installment agreement suspends it while the IRS considers the request, plus 30 days if the request is rejected or withdrawn, and the IRS says collection stays suspended while Appeals considers an appeal of that rejection. A written extension signed in connection with an installment agreement extends the ten years outright, so read what you are signing before you sign it. And if the ladder reaches a Final Notice and you request a collection due process hearing, that hearing suspends the clock for as long as it is pending, which is covered in the ten-year clock section of the CDP page.

A defaulted installment agreement drops you back onto the collection ladder rather than off it. The lien may already be recorded, which is the notice of federal tax lien, and the levy notice that restores a Collection Due Process right is the final notice of intent to levy. If the balance is over the certification threshold, the passport problem is running on its own track the whole time.

On an old balance the arithmetic can reverse. Where the ten years are nearly up, a new agreement request or a hearing can hand the IRS more time than it saves, and the answer comes off the account transcript, where the expiration date sits under a three-digit transaction code. The transcript comes from an IRS online account, from Form 4506-T, or from the automated line at 800-908-9946, and reading it is the first thing we do on a balance more than a few years old.

When the Balance Itself Is Wrong

CAP cannot fix a wrong balance, so a CP523 on an amount you dispute needs a second track running beside the first. Where the balance came from a notice of deficiency, the 90-day letter, the prepayment forum was the Tax Court petition, and that deadline is 90 days from the mailing date, or 150 days if the notice was addressed to a person outside the United States. Our CP3219A page covers that notice. A taxpayer who never received the deficiency notice, because it went to an old address, may still challenge the amount at a collection due process hearing, and so may a taxpayer assessed a penalty that never carried deficiency procedures at all, such as the international penalties on a CP15. The rule is on the CDP page. Missing that Final Notice window when it arrives forfeits the courtroom, so both tracks have to be watched at once.

A payroll tax balance is its own case. The withheld part of an employment tax deposit can be assessed against the responsible owner personally through the trust fund recovery penalty, and the levy statute lets the IRS serve a disqualified employment tax levy on certain employment tax balances without a pre-levy hearing. A terminated agreement on a business payroll balance can therefore move faster than an individual income tax case, and the trust fund recovery penalty page is where that analysis lives.

How We Work a CP523

The order starts with the notice and the account together. We read the notice to fix the two 30-day dates, and we pull transcripts to confirm which periods the agreement covered, whether a Final Notice already issued for them, and what each period's collection date is. The five facts together decide whether the right move is a cure, a CAP appeal, a new agreement, or an offer, and the decision is made before anything is filed.

Three filings can follow, and which one depends on the facts above. Form 9423 goes in where the termination should be appealed. A financial statement is built where a new agreement or an offer is the answer. Form 12153 goes in if the ladder reaches a Final Notice, because that is the one step with a courtroom behind it, and this firm is admitted to the United States Tax Court. Fees are flat and quoted once we have read the notice and the transcripts, and most of the work runs by phone and video.

Frequently Asked Questions

Common Situations

The new year's balance. A couple paying $600 a month on an agreement for two older years files the next year's return with a $4,800 balance they cannot pay. The CP523 that follows names the unpaid new balance as the default, and every payment on the older years was made on time. Paying the $4,800 inside the 30 days cures it. Failing that, the call to the IRS before the 30 days run is about modifying the agreement to cover the new year, and if the agreement terminates anyway, the second 30 days are used for Form 9423 and a new agreement request on both balances, filed before the levy bar expires.

The disputed year. A man on an agreement covering four years disputes the amount for one of them, which came from a notice of deficiency mailed to an address he had left. When a CP523 arrives after a missed payment, the CAP appeal can address the termination and nothing else, because the amount is outside what CAP can hear. The deficiency notice he never received is what keeps the amount open at a collection due process hearing, so the file is worked on two tracks, with the Form 12153 ready for the Final Notice while the agreement is replaced.

Sources of Law

• Installment agreements. 26 U.S.C. §6159, including §6159(b)(4) (the grounds for altering, modifying or terminating an agreement, among them failure to pay an installment when due, failure to pay another tax liability when due, and failure to provide requested financial information), §6159(b)(5) (notice not later than 30 days before the action, with the reasons, except where collection is in jeopardy) and §6159(e) (independent administrative review of terminations for taxpayers who request it). The IRS sample CP523 (irs.gov/pub/notices/cp523_english.pdf) is headed Notice of intent to levy, Intent to terminate your installment agreement, and states that the agreement will be terminated 30 days from the date of the notice if the required payments are not made.
• Levy, and the bar on levy around a terminated agreement. 26 U.S.C. §6331, including §6331(d) (the written notice of intent to levy, which the CP523 is) and §6331(k)(2) (no levy while an installment agreement is in effect, during the 30 days after the IRS terminates it, and, where an appeal of the termination is filed within those 30 days, while that appeal is pending). The two-stage appeal period and the CAP limits come from Publication 1660 (Rev. 1-2020), which states that the right to appeal continues for an additional 30 days after termination, that a mailed request must be postmarked within the appeal period, that an appeal filed before termination may not be filed again once termination takes effect, that CAP does not permit a challenge to the existence or amount of the liability, and that a CAP decision cannot be taken to court. The request is Form 9423, Collection Appeals Request. Collection's processing of CDP, equivalent hearing and CAP requests is at IRM 5.19.8.
• Collection due process, kept separate. 26 U.S.C. §6330, including §6330(a)(2) and (a)(3)(B) (the Final Notice and its 30 days), §6330(c)(2)(B) (the underlying liability may be raised only where no notice of deficiency was received and no other opportunity to dispute it existed), §6330(e)(1) (suspension of the collection period while a timely hearing is pending), §6330(f)(2) (state tax refund levies, with the hearing after the levy) and §6330(f)(3) (the disqualified employment tax levy). Treas. Reg. §301.6330-1(b)(1) (the 30 days commence the day after the date of the CDP notice). Whether a prior notice was a prior opportunity, IRM 8.22.8. The IRS sample CP504 states that before levying on property it will send a notice offering a collection due process hearing unless one has already been issued.
• Deficiency deadlines. 26 U.S.C. §6213(a) (90 days from mailing, or 150 days if the notice is addressed to a person outside the United States) and §6212(b) (mailing to the last known address is sufficient). Passport certification, 26 U.S.C. §7345(b)(1) (an assessed liability over the threshold where a notice of federal tax lien has been filed and the §6320 remedies have lapsed or been exhausted, or a levy has been issued) and §7345(b)(2)(A) (a debt being paid in a timely manner under a §6159 agreement is excluded). The 2026 threshold of $66,000, Rev. Proc. 2025-32 §4.60, confirmed by Publication 594 (Rev. 1-2026). A pending installment agreement request as a discretionary exclusion, IRM 5.19.25.5 (eff. 10-10-2024).
• The collection period. 26 U.S.C. §6502(a)(1) (ten years from assessment) and §6502(a)(2) (a written agreement extending the period entered into in connection with an installment agreement). Suspension while an installment agreement request is pending, plus 30 days if rejected or withdrawn, and how to find the expiration date on an account transcript (IRS online account, Form 4506-T, or 800-908-9946), irs.gov/filing/time-irs-can-collect-tax. Suspension of collection for 30 days after a rejected request and while Appeals considers the appeal, Publication 594 (Rev. 1-2026). (all retrieved September 16, 2026)

The Year the Agreement Stopped Working

The pattern I keep meeting is an agreement that was working until a new year's balance arrived. The monthly payment was going out on time, the return for the next year was filed with a balance the taxpayer could not pay, and the CP523 named that new balance as the default (the payments on the old years were never the problem). In 14 years of law practice, I litigate tax, business and estate disputes, and a notice read too late is where many collection cases start. I have a few take-home points.

The first is the trigger. The law lists three defaults, and the missed installment is only one of them. The second is a new balance that is not paid when it comes due, and the third is an unanswered request for financial information, so an agreement has to be watched every April as well as every month.

The second is the mechanism. The notice runs two clocks, 30 days to termination and 30 more before a levy, and the one appeal can be used in either stretch. Curing inside the first 30 days keeps the agreement you have. Everything after that is a reinstatement with a fee or a new request at a figure the financial statement supports.

Avoid appealing a termination in order to argue about the balance. CAP cannot reach the amount and there is no court behind it, so the appeal is decided on whether the default happened, and the argument about what you owe has to be made through a deficiency petition or a collection due process hearing instead.

The last is an honest limit. The IRS does not have to offer the same terms twice. Reinstatement and a new agreement are both requests, and the IRS decides them on the financial statement in front of it, so nobody can tell you in advance that the old monthly figure will be available again.

Kevin D. Klagge, Esq., admitted in Florida since 2012. The situations described on this page are illustrations rather than matters handled by this firm. General information rather than advice on your situation.

Updated on September 16, 2026. Reviewed by Kevin D. Klagge, Esq., Fla. Bar No. 99502. Attorney Kevin Klagge represents families, businesses, and international clients in estate and tax planning, business structuring, and international law, with a focus on Florida legal tools. He litigates estate and business issues in court. This article is general information about federal law, not legal or tax advice, and does not create an attorney-client relationship. Whether an agreement is reinstated or replaced depends on your own facts, your transcripts and IRS procedures that change. Deadlines printed on your notice control over any general description here. Past results do not guarantee a similar outcome.