IRS CP501: Reminder — Balance Due
The CP501 is the first reminder notice — it's not yet an enforcement action. The IRS is simply reminding you that your CP14 balance remains unpaid. But it's a signal: your case is active, and without action, it will escalate to CP503, then CP504, then enforcement.
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What Is IRS Notice CP501?
IRS Notice CP501 is the first reminder in the IRS collection sequence. Approximately 4-5 weeks after the IRS sends you a CP14 (initial balance-due notice showing the amount you owe), if no payment or response has been received, the IRS sends the CP501. It is a reminder — not an enforcement action, not a threat, and not a final notice. It exists to tell you: "We still haven't received payment, and your balance remains due."
While the CP501 is the least urgent of the IRS collection notices, it carries an important message: your case has not been forgotten, and the IRS will continue to escalate if you do not respond. Penalties and interest compound daily. The longer you wait, the higher the total grows — and the closer you get to enforced collection.
Where CP501 Fits in the Sequence
First Balance-Due Notice — payment due in 21 days
First Reminder — balance remains unpaid. YOU ARE HERE.
Second Reminder — escalating urgency (~4-5 weeks away)
Final Notice of Intent to Levy (~8-10 weeks away)
Certified Final Notice — 30-day CDP deadline (~12-16 weeks away)
Related Resources
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