IRS Notice CP504

Interest in IRS notices climbs through winter and spring and spikes again when levy warnings go out. CP504 is one of the notice numbers that has been rising in search. This page explains that one notice so you can tell it apart from a first bill, a scam, and the later hearing notice. It does not replace the letter in your hand or a tax professional.

CP504 is a notice of intent to levy sent when the IRS says you still owe for a tax year. By this point the IRS has usually already sent a balance-due notice and at least one reminder. CP14 is the common first bill. CP501 and CP503 are reminders. CP504 is the notice that talks about levy, including taking a state tax refund and warning that other property can be seized.

The amount on CP504 includes the tax the IRS has assessed plus penalties and interest to the date of the notice. More interest can accrue after that. Match the tax form and tax year to your return before you pay. A notice for a year you did not live or work in the United States, or for a business you do not own, needs a closer look rather than an automatic payment.

People mix up CP504 with the IRS final notice of intent to levy and right to a hearing. That later notice is often numbered LT11, Letter 11, or Letter 1058. It is the one that generally gives you 30 days to request a collection due process hearing on Form 12153.

CP504 is serious, and the IRS can take a state refund around this stage, but do not skip reading for a hearing deadline if a different notice arrives. If your envelope says LT11 or Letter 1058, use that deadline. If it says CP504, use the instructions printed on CP504 and do not assume you have already received hearing rights.

Business notices use other codes. If your letter says CP081 or another number, look up that exact code on IRS.gov instead of treating it as CP504.

Check that the letter is real. The IRS starts contact by mail. Confirm the notice in your IRS online account, or call the phone number printed on IRS.gov for balance-due notices, not a number from a voicemail or text. Our IRS scam guide lists the usual fake-IRS patterns.

If the balance is correct and you can pay it, paying stops the levy path for that amount. If you cannot pay in full, still respond. The IRS has installment agreements, and in harder cases currently not collectible status or an offer in compromise. Those are applications, not something you get by ignoring mail. Penalties and interest keep running while the mail sits unopened.

If you disagree with the tax, look at whether the time to challenge the assessment is still open. CP504 is a collection notice. It is usually late for amending the underlying return, but a penalty abatement request or a claim that the IRS assessed the wrong person can still be worth filing. A CPA, enrolled agent, or low-income taxpayer clinic can tell you which path fits the year on the notice.

If a bank account is frozen after this, read the account levy guide and keep the IRS letter with the bank notice. They are one collection stream, not two unrelated problems.

IRS search interest is not only an April event. Collection notices go out all year, and interest rises again from January through early summer as filing season and balance-due notices overlap. CP504 in the fall is the same notice as CP504 in March. The response is still: verify the code, calendar any date the letter gives you, and choose pay, a payment plan, or a proper dispute.

Keep every page of the notice, including the payment stub. If you later talk to the IRS or a representative, the notice number and tax year are the first things they ask for.