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IRS notice CP518

CP518: Final reminder to file your tax return

A CP518 is the IRS’s final reminder that it still has no record of a return it believes you must file. If you don’t respond, the IRS may work out your tax for you from the income it knows about, which usually means a bigger bill than your own return would show.

Where it falls
Final reminder before the IRS acts
Deadline
None printed. The IRS asks you to respond immediately.
Is it real?
Check it in your IRS Online Account, or see how to spot a fake.

What the IRS is telling you

This is the last reminder before the IRS acts on its own. It still has no record of your return for the year shown.

What to do

  • If you haven’t filed: file the return with Form 15103 explaining why it’s late. Send them to the address or fax number on the notice.
  • If you already filed: send Form 15103 saying so, with a signed, dated copy of the return. Check that the name, Social Security number and year match the notice.
  • If you don’t have to file: explain why on Form 15103. You can submit it online through your IRS Online Account.

What happens if you don’t respond

The IRS may determine your tax for you. That calculation uses only the income reported to it, so it usually leaves out deductions, credits and business expenses. Penalties and interest keep growing, and any refund you’re owed may be delayed or lost.

How ScrubJay can help

A CP518 often means several years are missing. We find every one and file them, so you’re responding with real returns rather than waiting for the IRS’s version. See catch-up filing.

Common questions

What happens after a CP518?

If you don’t respond, the IRS may determine your tax for you, penalties and interest may keep growing, and any refund you’re owed may be delayed. The next letter is often a proposed assessment such as a CP2566 or a Notice of Deficiency, CP3219N.

Is it too late to file my own return?

No. Filing your own return now is still the best response. It replaces the IRS’s calculation with the real figures, including deductions and credits.

Sources

See where you stand in a few minutes.

The estimate is free. The $79 IRS investigation is the first thing you pay for, and it counts toward your plan.