CP523 Notice
The CP523 is an IRS notice informing you that your installment agreement (payment plan) is at risk of being terminated due to missed or late payments. You must bring your payments current or contact the IRS immediately to prevent the agreement from defaulting.
Why Did You Receive This Notice?
You received a CP523 because you have an existing installment agreement with the IRS and you have missed one or more required payments, or you have fallen out of compliance with another condition of the agreement — such as failing to file a current-year tax return or incurring a new tax liability. The IRS is giving you a final opportunity to cure the default before terminating the agreement.
What Does this Mean for You?
The CP523 means your installment agreement is about to be terminated. If that happens, your entire outstanding balance becomes immediately due, the IRS can resume levy action against wages and bank accounts, and you may not be able to set up a new payment plan as easily. The notice typically gives you a short window — often 30 days — to cure the default. This notice also informs you of the right to appeal under the Collection Appeals Program
What Happens If You Ignore It?
Your Options
- Make the missed payment(s) immediately: Bring your installment agreement current by paying the overdue amount(s) right away. This is the fastest way to cure the default.
- Contact the IRS to reinstate or modify: If you cannot catch up immediately, call the IRS and explain your situation. The IRS may allow you to reinstate the agreement with a modified payment amount.
- File any missing returns: If the default was triggered by an unfiled return, file it immediately — having a current filing often resolves part of the default.
- Apply for a new installment agreement: If the original agreement can't be saved, apply for a new one at irs.gov.
Step-By-Step: What To Do Next
Step 1: Read the CP523 and identify why the agreement is at risk — missed payments, unfiled return, or new liability.
Step 2: Take corrective action immediately: make overdue payments, file missing returns, or call the IRS.
Step 3: If making a payment, pay online at irs.gov/payments and keep your confirmation number.
Step 4: Call the IRS if you need to modify your payment amount — they are often willing to work with taxpayers who communicate proactively.
Step 5: Confirm in writing that your agreement is reinstated after correcting the default.
Can You Handle this Yourself?
Making a missed payment to cure an installment default is entirely self-serviceable. Pay online through IRS Direct Pay or EFTPS and call the number on the CP523 to confirm the agreement remains in effect. If you need to modify your payment amount, a single call to the IRS with your financial information is usually sufficient.
Expert Insight From Rockwater Tax
At Rockwater Tax, we advise clients with installment agreements to set up automatic payments through EFTPS to prevent CP523 notices from ever happening. If a default does occur, the IRS is generally receptive to taxpayers who call quickly and proactively — the goal is to keep the agreement intact. Letting it terminate forces both parties back to square one and often results in harsher terms.
Need a hand?
FAQ
Q: How many missed payments trigger a CP523?
A: Typically one missed payment is enough to put the agreement at risk, though the IRS may have some administrative tolerance. Don't assume you have extra time.
Q: Can I reinstate my installment agreement after it's terminated?
A: Yes, but it requires applying for a new agreement and the IRS may impose stricter terms. It's better to prevent termination by responding to the CP523 quickly.
Q: What if I can no longer afford my current payment amount?
A: Call the IRS and request a modification. If your financial situation has changed, the IRS may allow a lower monthly payment.
