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CP501
CP501 — Reminder of balance due
A reminder that a balance is still unpaid. Softer than final levy notices, but interest keeps running and more aggressive letters may follow.
What to do next
Start with these steps before you reply.
CP501
Confirm you still owe what they claim. If yes, choose a payment path before reminders escalate. If no, document payments and contact us to reconcile.
CP501 is a warning shot
The IRS is still in reminder mode. Use that window — options are usually better than after intent-to-levy language arrives.
Next
- Match payments to years
- Fix entity/payroll issues that keep regenerating balances
- Book a free session if the total is unclear
Find another letter
Every notice in this library, sorted the way the IRS numbers them.