IRS Notice CP503: Second Reminder of Balance Due

What does an IRS CP503 notice mean?

A CP503 is the IRS's second reminder that your balance is still outstanding after a CP14 and CP501 went unanswered. The amount has grown with additional penalties and interest, and the language is firmer because the account is moving closer to active collection. It is the last routine reminder before the IRS issues notices that carry levy warnings.

Why did you receive a CP503?

You got this notice because two prior balance-due notices did not result in full payment or a payment arrangement. As with earlier notices, a payment in transit or misapplied to another period can also trigger it.

How to respond to a CP503 notice

Act quickly: pay in full, or set up an installment agreement or short-term payment plan online or by phone. If paying is genuinely impossible, ask about Currently Not Collectible status or an Offer in Compromise. If you dispute the amount, contact the IRS with documentation immediately rather than waiting.

What happens if you ignore it?

The next notice (CP504) states the IRS's intent to levy your state refund and other assets, and after that a final levy notice grants the IRS authority to seize wages and bank funds. A federal tax lien may also be filed, damaging your credit and complicating asset sales.

Common resolutions

• Pay immediately
• Set up an installment agreement
• Contact the IRS

Related IRS notices

• CP14 — Balance Due
• CP501 — Reminder of Balance Due
• CP504 — Intent to Levy
• CP504B — Intent to Levy — Passport Certification