What a CP501 notice means
The IRS sends a CP501 when a balance it billed you for is still unpaid and no payment arrangement is in place. It restates the amount owed, including tax, penalties, and interest that have built up since the first notice, and gives a new "pay by" date, typically about 10 days from the notice date.
The tone of a CP501 is still informational. It's a reminder, not a threat. But it's an important signal: the IRS's automated system has moved your account one step along a path that ends with levies and liens if nothing changes.
Common reasons people end up with a CP501:
- They received a CP14, couldn't pay it in full, and set it aside
- They moved, and the first notice went to an old address
- They made a partial payment and assumed it would hold the IRS off
- They thought a payment plan was in place, but it was never finalized or it defaulted
Why the balance went up
Your CP501 balance is probably higher than your CP14. That's because two things keep running every month that a balance is unpaid:
- The failure-to-pay penalty, generally 0.5% of the unpaid tax per month, up to 25%
- Interest on the tax and the penalties, compounded daily at a rate the IRS sets quarterly
Neither stops until the balance is paid. A payment plan reduces the penalty rate to 0.25% a month for most individuals who filed on time, but interest continues.
What to do now
- Open the notice and check the year and amount. Make sure it's for a year you recognize, and compare the tax amount with your return.
- Check for payments you've made. If you made payments that aren't reflected, they may have been misapplied. We can trace them.
- Decide how you'll resolve it. Pay in full, set up a short-term plan (up to 180 days), or set up a long-term installment agreement. If you owe $50,000 or less, a streamlined plan is usually straightforward.
- Ask about penalty relief. If you qualify for first-time abatement, removing penalties can lower what you owe.
- Look at other years. A CP501 for one year often means other years also have balances or missing returns.
Partial payments don't stop the notices. Sending the IRS whatever you can afford without a formal agreement reduces the balance, but the automated collection process keeps moving. The next notices, and eventually enforcement, follow unless a payment arrangement is actually set up.
Two notices in? Let's get an agreement in place before there's a third.
Get a Free ReviewWhat happens if you ignore a CP501
If the balance remains unpaid and unarranged, the next steps are generally:
- CP503, a second reminder with more urgent language
- CP504, a Notice of Intent to Levy. At this point, the IRS can levy your state income tax refund and warns that it can levy other assets
- LT11 or Letter 1058, the Final Notice of Intent to Levy, giving you 30 days to request a Collection Due Process hearing
- Enforcement: wage garnishment, bank levies, levies on Social Security or other federal payments, and possibly a federal tax lien
The IRS can also keep any federal tax refund you're due in a later year and apply it to this balance.
Didn't get the first notice?
It happens often, especially after a move. The IRS sends notices to the address on your most recently processed return or the address you've updated with them. If you've moved, file Form 8822 to update your address, and know that the IRS generally treats notices mailed to your last known address as properly sent, even if you never saw them. That's another reason to act on the CP501 now.
How we handle a CP501
We pull your IRS transcripts, confirm the balance and payment history, check every year for balances and missing returns, and set up the resolution that fits: often a streamlined installment agreement, sometimes combined with penalty abatement. If you're self-employed or had a big change in income, we also help you avoid a new balance next year, because a new balance is the most common reason a payment plan defaults.
If you also owe your state, we handle that at the same time. See state tax debt.