Tax Tool

IRS Notice Decoder

Look up common IRS notice numbers and understand what the letter may be asking you to do.

IRS Notice Decoder

Enter the notice number from the top right or header area of your IRS letter.

Notice number

Serious collection notice

CP504 intent to levy state refund or property

Act quickly. Review the deadline, gather account records, and consider professional help if you cannot resolve the balance.

This tool provides an educational estimate only. It does not replace IRS records, filed tax returns, official IRS systems, or advice from a qualified tax professional.