By Aruna, Enrolled Agent (EA) · IRS sources checked November 9, 2026
Do not wait for a consultation to address your notice.
The IRS says to contact it as soon as possible, no later than 30 days from the CP523 notice date. Follow the dates and contact instructions on your letter. This is not a promise that you have 30 days left or that collection is stopped.
What CP523 means—and what it does not
CP523 generally says your installment agreement is in default and the IRS intends to terminate it and levy assets. Receiving the notice does not, by itself, establish that your agreement has already ended or that a levy happened. An older notice may concern an agreement that has since been terminated. Ask the IRS to confirm the current status and affected tax periods.
Read the reason printed on your notice before assuming the problem is a missed payment. The IRS may identify a new unpaid tax liability, requested financial information or another unmet agreement condition. See the IRS explanation of CP523 and IRS procedures for defaulted agreements.
Three situations to separate
1. You missed a payment
Check the required amount and termination date. The IRS says making the required payment before termination can prevent termination for a payment default. Contact the IRS to confirm the correction and whether anything else remains unresolved. A payment alone may not resolve another default reason.
2. You paid, but the records do not match
Compare the payment date, amount, tax year selected and bank or IRS posting status. A scheduled payment is not the same as a completed debit. Keep proof of payment separately and ask the IRS to verify how it was applied. Do not assume a second payment is needed—or that the notice can be ignored—without checking.
3. The payment is no longer affordable
Explain what changed and gather current income and necessary-expense records. Ask whether a revised agreement or another collection option is available. Eligibility depends on your finances and IRS requirements; an online change or a consultation does not automatically resolve CP523.
Free · No email required
Payment-Plan Evidence Worksheet
Compare your notice with payment records before calling the IRS or discussing your case with Aruna. These entries stay on this page and are not sent to us. Save your notes before leaving or refreshing.
Do not enter Social Security numbers, bank-account numbers or payment confirmation numbers. Keep original proof separately.
Also gather your notice, agreement terms, payment proof and any recent IRS correspondence. Ask about the actual default reason, agreement status, required corrections and appeal deadlines. This worksheet does not calculate deadlines or determine eligibility.
AUS Tax Service · Aruna | Enrolled Agent (EA) · 248-961-6599
Can the payment plan be reinstated?
Possibly. Contact the IRS to establish whether the agreement is in default or already terminated, what caused it, and what correction is required. A reinstatement fee may apply, and a new tax liability may need to be addressed. Approval and the appropriate arrangement depend on the case. See IRS payment-plan guidance.
What if you disagree?
Ask the IRS to explain the default reason and review your supporting records. Proposed and actual installment-agreement terminations can have Collection Appeals Program (CAP) rights. Do not assume the Collection Due Process instructions for a different notice apply to CP523. Follow your letter and review IRS Publication 1660, Collection Appeal Rights promptly.
When professional help may be worthwhile
A straightforward missed-payment correction may be something you handle directly with the IRS. Consider an Enrolled Agent when payments do not reconcile, multiple years or notices are involved, the agreement is unaffordable, or an appeal or collection concern needs review.
With authorization, Aruna can review IRS account records and available options. The free 10-minute introduction is not a full case analysis; representation and preparation fees are discussed separately. Contacting AUS Tax Service does not stop collection action.
Different issue? Read the CP504, LT11/Letter 1058 and CP90 guide, or explore back taxes and unfiled returns help.
General taxpayer education, not individualized tax advice. Your actual IRS notice and circumstances control. IRS outcomes are not guaranteed.