How to Respond to an IRS CP504 Notice (Step-by-Step)
Need the full explanation first? Read: IRS CP504 Notice Explained.
Step 1: Review the Notice Carefully
Check the amount due, notice date, and tax year listed on the notice.
Step 2: Compare With Your Records
Review your tax return, payment history, and IRS account information.
Step 3: Decide How to Respond
If You Agree
Pay the balance or request a payment plan.
If You Disagree
Contact the IRS and provide documentation supporting your position.
Step 4: Respond Before Collection Escalates
Ignoring CP504 may increase the risk of levy action and additional collection notices.
Learn more here: What happens if you ignore CP504.
Common Mistakes
- Ignoring the notice
- Waiting too long to respond
- Failing to verify the amount due
Bottom Line
The best response to CP504 is to act quickly, review the balance, and address the issue before the IRS escalates collection efforts further.
Disclaimer: This content is for informational purposes only.

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