Tax Relief Services

IRS CP523 Notice Help: Reinstating a Defaulted Installment Agreement

Updated September 6, 2026

By Angeline Balsitis, EA · Reviewed by Melissa Ly, Chief Tax Officer

A CP523 is the letter that ends a payment plan. The IRS says it intends to terminate your installment agreement and levy, and it gives a date. The good news is that the same page tells you how to keep the plan, and the fix is usually a phone call made before that date rather than after it.

What a CP523 notice is

The IRS's page says that if you received a CP523, CP523 (SP) or CP623, the IRS is informing you of its intent to terminate your installment agreement and seize, meaning levy, your assets, because you have defaulted on your agreement. Its FAQ restates it: the notice is telling you the IRS intends to terminate the agreement and levy your wages or bank accounts if you take no action, and it tells you why. The page is the IRS's Understanding your CP523 notice.

The word default covers more than a missed payment. The IRS's payment plan page lists what keeps a plan alive: pay at least the minimum monthly payment when due, file all required returns on time and pay all taxes in full and on time, and keep paying even when the IRS applies a refund to the balance. A new year's return filed late, or a new balance left unpaid, defaults an existing agreement as surely as a skipped payment does, and that is the reason on many CP523s we see. Our guide to what happens when a payment plan defaults walks through the common causes.

The 30 days, and the termination date

Two dates matter and they are not the same. The notice carries a termination date, and the IRS says to make your payment before it to prevent the agreement being terminated. Separately, asked how much time you have, the IRS says you should contact it as soon as possible but no later than 30 days from the date of the notice.

The IRS's payment plan page adds what those windows buy. It says the IRS will generally not take enforced collection action while a plan is in effect, for 30 days after a request is rejected or terminated, or during the period it evaluates an appeal of a rejected or terminated agreement. It also says that if you default and the IRS proposes to terminate, the running of the collection period is suspended for 30 days. So the window is real, it is short, and the levy the notice describes is what waits on the other side of it.

What the IRS asks you to do

• Make your payment before the termination date. The IRS says this prevents the agreement being terminated.
• Contact the IRS right away to see if you can reinstate the agreement. The IRS says you may have to pay a fee to reinstate it, or you may have to pay any new tax liability in full.
• Read the notice, which the IRS says explains what to do now that you have defaulted.
• If you already took corrective action, still call. The IRS says to make sure it has a record of your action so it can reinstate the agreement.

The reinstatement fee is on the IRS's payment plan page too: if your plan has lapsed through default and is being reinstated, you may incur a reinstatement fee. And the requirement to pay a new liability in full is the one that catches people. A plan defaulted by a new year's balance is not reinstated by resuming the old payments; the new balance has to be dealt with, either paid or folded into a revised agreement.

Reinstate, revise, or appeal

• Reinstate. If the default was a missed payment and the plan is otherwise workable, pay what was missed, call, and pay the fee if one applies. The IRS's page describes exactly this.
• Revise. If the plan defaulted because the payment was never realistic, reinstating it on the same terms sets up the next CP523. The IRS's payment plan page says you can revise the plan type, payment date and amount through your Online Account, and that if the new amount does not meet the requirements you will be directed to a Collection Information Statement, Form 433-F or 433-H, to support a lower figure. Our IRS payment plans page covers the options, and if the honest answer is that no payment fits, our currently not collectible page covers hardship status.
• Appeal. The IRS says that if you do not agree with its reason for terminating the agreement, you should contact it first, and if after talking you still do not agree, you have the right to file an appeal and request a hearing with the IRS Independent Office of Appeals. Its payment plan page says enforced collection is generally held during that appeal.

What happens if you do nothing

The IRS says it will terminate your installment agreement and begin taking collection action, which can include filing a federal tax lien or seizing, meaning levying, your wages and bank accounts. Once the plan is terminated, the account is back in the ordinary collection sequence, and a terminated plan is not a clean starting point for a new one.

The CP523 also carries the passport paragraph. The IRS says the notice explains the denial or revocation of a United States passport under the FAST Act for seriously delinquent tax debt. A plan being timely paid is on the IRS's list of debts it does not certify. A terminated plan is not. Our passport revocation page covers the threshold.

What Clarity does with a CP523

The first question is why it defaulted, because the fix depends on it, and the transcript answers it faster than the notice does. A missed payment, a late return, a new balance, a refund the IRS applied that the taxpayer counted as a payment: each has a different remedy, and each has to be resolved before the IRS will reinstate. We have seen CP523s issued on plans where every payment was made and the default was a return filed a week late. That one is a reinstatement call. A plan defaulted by a payment nobody could afford is a different conversation.

• We cure the default and make the reinstatement call within the window, under a power of attorney.
• We restructure where the plan was wrong, with the financial statement the IRS's page says a lower payment requires.
• We preserve the appeal where the IRS's reason for terminating is itself wrong.
• We deal with a new balance that caused the default, so the reinstated plan is not defaulted again by the same year.

The investigation fee is $495 for an individual and $695 for a business. It covers the transcript pull, the default review and a written plan, and it comes with a 15-day money-back policy from the date you sign. You have the written agreement before anything is charged.

The hard part, stated plainly

The hard part is that a CP523 usually arrives because the plan was never going to survive. It was sized to make a notice go away, and it went away for a year. Reinstating that plan on the same terms buys another year and another CP523. The useful conversation at this stage is about the number, and it sometimes ends with a lower payment, hardship status, or an offer, rather than with the plan you had.

The second hard part is the second default. The IRS's tolerance for reinstating a plan that has already defaulted once is lower, and the notice sequence after a terminated plan moves faster than the one that led to the first agreement.

When you do not need anyone

If you missed one payment, you can make it up now, and nothing else has changed, pay it and call the number on the notice before the termination date. The IRS's page tells you to do exactly that, and it does not require a firm. If a return was filed late and that was the whole default, file it and call.

Where a review earns its fee: the plan defaulted because the payment was never affordable, a new balance has appeared that you cannot pay in full, this is the second default, the termination date is days away, or you disagree with the IRS's reason and the appeal window is open. Those are the cases where the terms of the plan, not just its reinstatement, decide whether this happens again.

CP523 Notice Questions, Answered

Results vary based on individual facts and circumstances. Whether the IRS reinstates or revises an installment agreement depends on the account and the financial information provided, and no specific outcome is guaranteed. This page is general information about the IRS CP523 notice, not tax or legal advice.

Related Services: CP523 notice: what default actually means · IRS Payment Plans · Currently Not Collectible · LT11 / Letter 1058 Final Notice · Collection Due Process Hearing · or return to All Tax Relief Services.

“You should contact us as soon as possible but no later than 30 days from the date of the notice.”

— IRS, Understanding your CP523 notice

The passage quoted above is from IRS, Understanding your CP523 notice.