Plain-English translation of this IRS notice — what it means, what happens if you ignore it, and exactly what to do.
What the IRS says
Reminder that you still have an unpaid balance — the first of a series of reminder notices.
What it actually means
In plain English: This is a nudge, not an escalation. You got a CP14 earlier and the balance is still there. The IRS sends CP501, then CP503, then CP504 — each one more serious.
Deadlines
No hard deadline on this letter itself, but interest and penalties accrue daily. Act before CP503/CP504 arrive.
What to do
Pay the balance if you can.
Set up a payment plan — once approved, the reminder cycle generally pauses.
Dispute it if the amount is wrong: call the number on the notice with your records ready.
Key facts
Series position
1st reminder (after CP14)
Next if ignored
CP503 — more urgent
Interest
Accrues daily until paid
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Informational only — not tax or legal advice. Verify everything at irs.gov or with a qualified professional.