CP59 Notice — Delinquent Return Request From the IRS

Direct answer

CP59 is a delinquent return notice. The IRS believes you still need to file a tax return for one or more years and is asking you to file or explain why you are not required to file.

CP59 is a compliance notice — not a balance-due letter yet. But unfiled years often lead to substitute returns, refund holds, and collection later. Verify what the IRS has before you respond.

Reviewed August 2026 · Joseph Lancaster, Founder · About the author

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What CP59 means

The IRS matched information it received (W-2s, 1099s, etc.) to its records and does not see a processed return for the year(s) listed. CP59 asks you to file the missing return or contact the IRS if you believe you are not required to file.

Verify on your transcripts

  • Account transcript: look for TC 150 (return processed) for each year in question — no TC 150 often means unfiled or substitute return.
  • Wage & income transcript: see what payors reported — useful if you need to reconstruct income before filing.
  • If you already filed, the return may still be processing — compare notice date to posting dates.

What to do next

  • If you did not file, prepare and file the return for each year listed — accuracy matters because penalties accrue.
  • If you already filed, respond with proof of filing (confirmation, certified mail receipt, or transcript showing TC 150).
  • If you are not required to file, respond with documentation explaining why.
  • Do not ignore CP59 — the IRS may file a substitute for return (SFR) using only income it knows about.

What happens if you ignore CP59

The IRS may issue stronger delinquent filing notices (CP515, CP516), assess a substitute return, hold refunds (CP63), and eventually pursue collection on assessed balances.

Related IRS notices

Verify on your IRS transcripts

Notices describe what the IRS intends to do — your account transcript shows what actually posted. Start here:

Common questions

Is CP59 the same as a balance due notice?

No. CP59 is about missing returns. You may not owe tax until a return is processed or the IRS files a substitute return — but compliance usually must come first.

How do I know which years are unfiled?

Check your account transcript for missing TC 150 lines and your wage & income transcript for reported income by year. Brevitax organizes both when you upload or request records.

I filed but still got CP59 — what now?

Returns can take weeks to post. Pull a fresh account transcript — if TC 150 is present, respond to the notice with that evidence. If not, confirm the IRS received your submission.

What is a substitute for return (SFR)?

If you do not file, the IRS may prepare a return using income documents it has — often with no deductions and a higher tax. Filing your own return is usually better than letting SFR stand. See our substitute for return guide.

See what the IRS has on your account

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