IRS notice CP504: what it means and what to do
By Chad Mangum, Enrolled Agent · Reviewed November 3, 2026
CP504 says the IRS still has an unpaid balance and intends to collect through a levy. This is past the reminder stage, and your state income tax refund can be taken if you leave it unanswered.
What the letter says
The words "Amount due immediately" deserve your attention. On the IRS sample, they appear beneath the levy warning and again in the "Billing Summary" box. That box separates the earlier balance from added charges. Check the tax year near the notice date, too.
A levy means the IRS takes property to pay a tax debt. A notice of intent tells you it plans to do that. Read the whole letter before assuming which step has already happened.
If you paid this balance or already arranged an installment agreement, call the number on the notice to confirm that the account reflects it. A payment confirmation is useful here. So is the agreement you received.
How long you have
Act now. CP504 calls for immediate payment, and the IRS sample gives 30 days from the notice date before the stated levy action. Count from the letter's date. Read your copy for its exact instructions.
For an individual tax debt, the IRS can take a state tax refund after that period. If a balance remains, it generally sends a further final levy notice, such as LT11 or Letter 1058, before taking wages or bank funds, unless it already sent that notice. Exceptions exist. Do not count on another envelope buying you time.
The IRS can also file a Notice of Federal Tax Lien. That publicly records its claim and can make selling or borrowing against property harder. It is a separate collection step, so there is no neat promise that it comes last.
What you can do
If you agree with the amount and can pay it, pay it. If you disagree, call the number on CP504 with the records that explain why. The amount has to be right before you decide how to pay it.
If you owe it but cannot pay in full, consider a payment plan, a reduced plan, hardship status or a settlement.
A payment plan pays over time. A reduced plan may be a partial payment installment agreement based on your ability to pay. It can leave part of the balance unpaid when the collection period ends, and the IRS can review your finances later.
Hardship status temporarily delays collection when basic living expenses leave no room for tax payments. It does not cancel the balance. Interest and applicable penalties keep adding up.
A settlement means an offer in compromise. The IRS generally will not accept one if a payment plan or the equity in your assets can cover the debt. An urgent letter does not change that calculation.
When help is worth paying for
If the balance is clear and you can pay it, you may not need a firm. Payment and online plan options are at irs.gov/payments. Follow up with the IRS about the notice if you have already made arrangements.
Help makes sense when you cannot afford the proposed payment or cannot tell from the letters how far collection has gone. Bring the earlier notices along. They matter.
Bring this notice to a free 15-minute call; we reply within one business day. Then a $395 IRS transcript review, pulled with your signed permission, with an answer in writing. Then one flat fee for the work, agreed before it starts.
Other IRS letters: CP14, LT11 and Letter 1058 and CP2000.