IRS CP01A: Protect Your Identity. Use the Right IP PIN.
Notice Instructions: Use the correct PIN when filing the covered federal return; follow the instructions for your filing method.
Keep The Code Private. Keep Your Filing Moving.
CP01A provides your 6-digit Identity Protection PIN. Use the PIN for the calendar year in which you file, including when you file an older federal return. It helps the IRS confirm that the return came from you.
Read The IRS Guidance For CP01A · Source checked October 11, 2026.
What to Check Next
- Step 1: Store the notice securely with your tax records.
- Step 2: Use the PIN for the current calendar year on current and prior-year federal returns filed during that year.
- Step 3: Follow the IRS instructions for the primary taxpayer, spouse, and dependents and for electronic or paper filing.
- Step 4: Share it only with your tax preparer through an appropriate secure channel. Do not put it in public website chat.
- Step 5: If it is lost, use the IRS retrieval or reissuance process before filing.
Common Questions About CP01A
- Can I Give My IP PIN To My Tax Preparer?
- Yes. IRS guidance permits sharing it with your tax preparer. Keep it private otherwise and use the firm’s secure document process.
- What If I Lost My IP PIN?
- Use your IRS Online Account to retrieve the current PIN, or follow the IRS instructions for reissuance by mail. Retrieval rules differ for minors. Filing without the required PIN can cause rejection or processing delays.
- Does The PIN Follow The Tax Year On The Return?
- Use the PIN for the calendar year in which you file, including for prior-year federal returns. A state-issued PIN is separate.
Additional Resources
Understand the Notice.
See the Bigger Picture.
THE TAX CUTTERY® Guide to Federal Income Taxation connects compliance, planning, and resolution. Keep better records, ask better questions, and return to the foundation when your next tax decision arrives.
Registered, verified owners can submit one written tax-topic question to the firm's desk. Individual services are agreed separately.
Already Own A Copy? Register It →Professional Edition hardcover. Taxes and shipping shown at checkout. The free consultation is open without a purchase.
General education; your notice and circumstances govern. A book purchase or consultation does not submit a response to the IRS. Representation, tax preparation, research, and paid time are separately engaged.