An IRS Notice CP504 is the “Final Notice — Balance Due” the IRS sends before it can levy your state tax refund. It is not the last collection notice — that title belongs to the LT11 / Letter 1058 which authorizes federal levies — but CP504 marks a critical procedural moment: 21 days from the notice date to preserve certain rights, and roughly 30 days before the IRS refers your account to the next collection stage.
What CP504 actually means
Two things happen after CP504:
- The IRS gains authority under IRC §6331 to levy your state tax refund immediately — no further notice required.
- The clock starts on referral to Automated Collection System or a Revenue Officer, which is when federal bank levies and wage garnishments become procedurally possible (following an LT11).
CP504 is dated. The 30-day window on the notice is not a suggestion — it is the timeframe you have to act before the IRS escalates.
The 21-day CDP hearing question
A common mistake: taxpayers assume CP504 preserves their right to a Collection Due Process (CDP) hearing. It does not. The CDP hearing right attaches to the LT11 / Letter 1058, not CP504. However, CP504 arrives before LT11 and gives you time to prepare — including engaging representation before the CDP window opens.
What to do within 21 days of receiving CP504
- Do not ignore it. The IRS records ignored notices in its collection file and revenue officers cite them in later enforcement decisions.
- Pull your account transcript. Verify the balance the IRS is asserting. Balances on CP504 are frequently based on Substitute for Return calculations that overstate what you owe.
- Determine your resolution path. Options include an installment agreement, Currently Not Collectible status, an Offer in Compromise, or requesting penalty abatement to reduce the balance.
- File any missing returns first. The IRS will not accept most collection alternatives while you have unfiled returns. See back taxes and unfiled returns.
- Engage an Enrolled Agent, CPA, or tax attorney. Filing Form 2848 (Power of Attorney) redirects all IRS communication to your representative and buys negotiation room.
Common outcomes after acting on CP504
In most cases where a taxpayer responds within 21 days:
- An installment agreement suspends further collection while the taxpayer remains current.
- Currently Not Collectible status can be granted based on financial hardship, freezing collection entirely.
- A properly filed Offer in Compromise pauses collection under IRC §6331(k) while the offer is under review.
Doing nothing produces the opposite: state refund seized, followed by LT11 within roughly 30 days, followed by federal wage garnishment or bank levy.
What CP504 does not do
CP504 alone does not permit federal wage garnishment or bank levy. That authority comes only after LT11 / Letter 1058 and the 30-day CDP hearing window it opens. If you receive CP504 and take no action, expect the LT11 within a month.
If you have already ignored CP504
The 21-day window is a procedural deadline for CDP-eligible items, not a hard cutoff on your ability to resolve the debt. Options remain available — installment agreements, Offers in Compromise, and Currently Not Collectible status can still be negotiated. What you lose is time and leverage. The sooner you act after CP504, the more resolution options remain on the table.
Luisa N. Victoria, EA, is a Federally Authorized Enrolled Agent representing taxpayers in all 50 U.S. states. Book a free strategy session to review your CP504 and identify the right resolution path.
