IRS BUSINESS COLLECTION NOTICES
A CP504B is the notice the IRS sends a business when a balance has gone unpaid through the earlier reminders. It is a notice of intent to levy issued under Internal Revenue Code section 6331(d), and it gives you 30 days from the date on the notice before the IRS can act.
Before you pay it, check whether you actually owe it. A large share of CP504B notices land on businesses that already paid. Payments posted to the wrong quarter, deposits made under a Social Security number instead of an EIN, and returns the IRS has not finished processing all produce a balance that looks real on the notice and is not real in fact. The 30-day clock runs either way, which is why the order matters: verify first, then resolve.
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Notice CP504B is an IRS notice of intent to levy sent to a business with an unpaid balance, issued under IRC section 6331(d). You have 30 days from the date on the notice. If the balance goes unresolved, the IRS may file a Notice of Federal Tax Lien and may levy business assets, bank accounts, accounts receivable, and other property.
The employment tax version carries an exposure the individual version does not. For most balances the IRS must send a further notice offering a Collection Due Process hearing before it levies. For employment taxes it may instead serve a Disqualified Employment Tax Levy, which does not carry that pre-levy hearing.
First: Confirm the Balance Is Real
The IRS says plainly that payments may take time to post, and that if you recently paid the balance in full you can disregard the notice. That single line explains a large share of CP504B notices. Four causes account for most of them.
The deposit went in under the wrong number
This is the most common one and the easiest to miss. An owner pays the 941 balance from a personal login, and the payment posts to Form 1040 under a Social Security number rather than to the employment tax account under the EIN. The money left the bank. The bank statement shows it. The 941 account still reads unpaid. Employment tax deposits belong in EFTPS under the EIN, and a payment applied to the wrong taxpayer identification number has to be transferred by the IRS before the balance clears.
The payment landed in the wrong quarter
A deposit meant for the third quarter posts to the fourth. The quarter you paid now shows a balance and a failure-to-deposit penalty, while another quarter sits in credit. The IRS can move a misapplied deposit, and when it does the effective date reverts to the original payment date, which removes the penalty and interest that the misapplication created.
A return or schedule has not been processed
Semiweekly depositors file Schedule B with Form 941 to show the liability by date. If the IRS has not finished processing the return or the schedule, the account can reflect a balance the return already resolves. Processing delays are not a defense against the 30-day clock, so a filed return that has not posted still needs a response.
The return was filed on the wrong year’s form
Short-year and final returns are often filed on the prior year’s form because the current form is not yet released. If the tax period at the top is not completed correctly, the return can be processed against the wrong year and generate a late filing penalty for a return that was filed on time.
Whatever the cause, document it before you call. Pull the account transcript for each quarter in question, keep the bank record showing the withdrawal, and note the date, time, and employee identification number of every call. The IRS Document Upload Tool creates a record of what you sent and when, which matters when a notice arrives after an agent has already agreed to fix something.
Related: 941 Late Deposit Penalty Calculator · Payroll tax penalties and 941 deposit rules
What a CP504B Actually Authorizes
Competitor pages tend to describe this notice as the moment the IRS empties your accounts. That overstates what the notice itself does and understates the one thing that makes the business version dangerous.
The IRS lists the property it can reach as wages, real estate commissions, accounts receivable and other income, bank accounts, business assets, personal assets including a car and home, and Social Security benefits. For a going concern, accounts receivable is the line that does the most damage. A levy served on your customers redirects money they owe you straight to the IRS, and it tells those customers exactly why.
One difference from the individual CP504 is worth knowing. The State Income Tax Levy Program currently reaches individual state tax refunds only, though the IRS notes it may extend to business refunds in the future.
Employment tax balances can skip the hearing that normally comes first. For most liabilities the IRS must send a further notice offering a Collection Due Process hearing before it levies. For employment taxes it may instead serve a Disqualified Employment Tax Levy or a Federal Contractor Levy after the 30 days run. If your CP504B covers Form 941, do not assume another notice is coming.
The notice also carries passport language. Passport certification under IRC section 7345 applies to individual taxpayers with seriously delinquent tax debt, which is $66,000 for 2026 and adjusted annually for inflation. A balance owed by an entity is not the immediate exposure there. It becomes relevant if the liability reaches you personally, which is the next section.
Related: IRS Notice of Intent to Levy (LT11 and Letter 1058) · What the IRS can seize · The IRS collections process, step by step
When a Business Balance Becomes a Personal One
If the CP504B covers Form 941, there is a second liability behind the first. The Trust Fund Recovery Penalty allows the IRS to assess the withheld portion of employment taxes personally against individuals it deems responsible persons under IRC section 6672.
The distinction most articles miss is which portion is exposed. The Trust Fund Recovery Penalty reaches the money withheld from employee paychecks, meaning employee income tax withholding and the employee share of Social Security and Medicare. The employer’s matching share is not assessable personally through this route. It stays a liability of the entity. That difference can be a large fraction of the balance, and it is worth knowing before anyone tells you that the entire amount will follow you home.
Responsibility turns on control rather than title. The IRS weighs whether a person had authority to sign checks, controlled which creditors were paid, handled payroll disbursements, directed the financial affairs of the business, or signed the employment tax returns. An officer with no financial control may not be a responsible person. A bookkeeper with signature authority may be one.
Assessment is not automatic and it is not silent. It comes through Letter 1153 with Form 4183, and that letter carries appeal rights with a deadline. People frequently mistake the Revenue Officer visit that precedes it for an audit. It is not an audit. It is Collections, and the response is different.
Related: Business tax solutions · IRS audit representation · Completing Form 2848, Power of Attorney
If the Balance Is Correct: What Your Options Actually Are
Paying in full ends it. When that is not realistic, the paths do different things and they are not interchangeable.
An Installment Agreement spreads the balance over time and stops active collection while it is in place. It does not reduce what is owed. An Offer in Compromise settles for less than the full amount when the IRS cannot realistically collect the balance, and the IRS accepted roughly 21% of applications in FY2024, so it fits a minority of cases rather than most. Currently Not Collectible status pauses collection when a business genuinely cannot pay. It does not eliminate the debt, and interest continues. Penalty Abatement removes penalties where reasonable cause or a clean compliance history supports it, and interest can come off only where it is tied to an abated penalty.
Two things have to be true before any of them is available. Returns must be filed. If quarters are missing, filing comes first, and our sister firm EZ Tax Preparation handles back filing. And current deposits have to be current. The IRS will not put a business into a resolution while it continues to fall behind on new payroll.
You can also request an appeal under the Collection Appeals Program before collection action takes place, following the instructions on the notice. Publication 1660 covers those rights and Publication 594 covers the collection process itself.
Related: Business IRS payment plan checklist · Business Offer in Compromise appeal checklist · Behind on filings
A Federal Tax Lien Is a Separate Problem
The notice warns that the IRS may file a Notice of Federal Tax Lien if it has not already. A lien is a public record. Lenders, title companies, and real estate attorneys find liens in public record searches, and they can block financing, prevent a sale, and stall a closing. The major credit bureaus stopped reporting tax liens in 2018, so a lien does not appear on a credit report, but that is little comfort when a bank is running due diligence on your business.
A lien cannot be prevented once the IRS decides to file. What can be pursued, under specific qualifying conditions, is discharge, subordination, or withdrawal. Subordination in particular is what allows a business to secure financing while a lien remains in place.
Related: Tax liens and levies · IRS bank levy · IRS levy release
How Omni Helps
Omni Tax Help has been resolving IRS and state tax debt for more than 20 years. Our tax experts and enrolled agents are federally authorized to represent businesses before the IRS in all 50 states, and we have managed more than $203 million in tax liability.
Frequently Asked Questions About Notice CP504B
What is a CP504B notice?
CP504B is a notice of intent to levy sent to a business with an unpaid tax balance, issued under Internal Revenue Code section 6331(d). It follows earlier balance due notices and gives you 30 days from the date on the notice before the IRS can proceed. It also warns that the IRS may file a Notice of Federal Tax Lien if it has not done so already.
How long do I have to respond to a CP504B?
Thirty days from the date printed on the notice, not from the date it arrived. Certified mail is frequently delayed or sits unclaimed, and it is common for a business to open the envelope with under a week left. If the window is nearly closed, contacting the IRS or your representative immediately matters more than assembling a complete response.
I already paid this. Why did I get a CP504B?
Most often because the payment did not post where it needed to. Employment tax deposits made under a Social Security number instead of an EIN land on the wrong account entirely. Deposits also land in the wrong quarter, and returns or Schedule B filings sometimes have not finished processing. The IRS notes that payments take time to post and that a balance paid in full can make the notice moot. Pull the account transcript for each quarter before you pay anything twice.
Can the IRS levy without sending another notice?
For most balances, no. The IRS would ordinarily send a further notice giving you the opportunity to request a Collection Due Process hearing before levying. Employment taxes are the exception. The IRS states that if it does not receive payment within 30 days it may serve a Disqualified Employment Tax Levy or a Federal Contractor Levy, neither of which carries that pre-levy hearing. If your notice covers Form 941, treat the 30 days as the real deadline.
What property can the IRS take?
The IRS lists wages, real estate commissions, accounts receivable and other income, bank accounts, business assets, personal assets including a car and home, and Social Security benefits. For an operating business, accounts receivable is usually the most disruptive. A levy served on your customers redirects payments they owe you and makes the situation visible to them.
Can the IRS come after me personally for my company’s payroll taxes?
For part of the balance, yes. The Trust Fund Recovery Penalty allows the IRS to assess the withheld portion of employment taxes personally against responsible persons under IRC section 6672. That covers employee income tax withholding and the employee share of Social Security and Medicare. The employer’s matching share is not assessable personally through this route and remains a liability of the entity. Responsibility depends on financial control, including check-signing authority and deciding which creditors get paid, not on job title alone.
What happens to payroll tax debt if I close the business?
Closing the business does not end the liability. The entity’s balance remains, and the IRS may pursue collection against remaining business assets. The trust fund portion can still be assessed personally against responsible persons through the Trust Fund Recovery Penalty, and that assessment can survive the company. A defunct business with no remaining assets can sometimes be placed in a non-collectible status, but that generally requires verification of what happened to the assets and where the money went.
Should I just call the IRS myself?
If the issue is a single misapplied deposit and you have the bank record in hand, calling the IRS business line is often the fastest fix, and you do not need to hire anyone for that. The calculation changes when a Revenue Officer is assigned, when multiple quarters are involved, when returns are unfiled, or when a Trust Fund Recovery Penalty investigation has started. At that point what matters is knowing which path the numbers support and how to present the financial picture, and that is where representation changes outcomes.
What does Omni charge to handle a CP504B?
Fees vary based on the complexity of your case. Omni is a retainer-based firm and the work agreement sets out scope and fees before you commit to anything. The first consultation is free, and if your situation is simple enough to handle on your own, we will tell you.
How do I know which resolution fits my situation?
It depends on your filing status with the IRS, whether current deposits are being made, how many quarters are open, and what the business can realistically pay. An Installment Agreement, an Offer in Compromise, Currently Not Collectible status, and Penalty Abatement each do a different thing, and the wrong one wastes months. A free consultation with our tax experts and enrolled agents will tell you which ones are actually on the table.
The 30 days are already running.
Whether the balance is real or the result of a misapplied payment, the clock on the notice does not pause while you sort it out. Getting into a resolution stops penalties and interest from building. Talk to our team and find out where you actually stand.
Free, confidential consultation. Phone Mon–Fri, 8 AM–5 PM ET. Message us anytime.