The IRS will send notice CP503 when a taxpayer has an unpaid balance of tax owed for the indicated tax year.
IRS notice CP503 is a second reminder that the taxpayer still owes a balance on a tax account. The taxpayer received this notice because the IRS hasn’t received a payment or a response to previous notice(s) requesting the balance be paid. A CP503 notice generally requests payment before the IRS continues the collection process.
What Should a Tax Preparer Review Before Responding to CP503?
- Verify the balance due matches the client’s tax return
- Confirm whether payments were already submitted
- Review prior IRS notices received by the client
- Determine whether penalties or interest were added
- Identify whether an installment agreement exists
Additional Information: