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IRS Notice CP303: Someone accessed an IRS online service

IRS Notice CP303 is an identity verification letter from the IRS. Someone used your personal information to sign in to an IRS online service. If that was you, nothing is needed. This is not a bill. It is about confirming that you are the person who filed the return.

What this letter usually means

Someone used your personal information to sign in to an IRS online service. If that was you, nothing is needed. This is not a bill. Until you verify, the IRS usually holds the return. Use only the steps on your letter or on irs.gov.

Category: Verify your identity

What people usually do first

If it wasn't you, call the number on your notice right away.

What to have ready

What may come next

This letter does not point to a specific follow-up letter. Any later step will be described in mail from the IRS.

Read the IRS page

The IRS letter itself is the final word on what it means for you. Read the IRS page for CP303.

Common questions about CP303

What is IRS notice CP303?

Someone used your personal information to sign in to an IRS online service. If that was you, nothing is needed. This is not a bill.

How long do I have to respond to a CP303 notice?

The date to respond or pay by, if there is one, is printed on your letter. Check it, and read the IRS page for CP303 for more.

Is a CP303 notice a scam?

A real CP303 comes by mail and should match your own records. You can also sign in to your IRS Online Account on irs.gov to see your account directly.

What should I have ready for a CP303 notice?

The letter, every page, Access to your IRS Online Account, Your most recent tax return.

The OweRight app explains the CP303 letter type in plain English.

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OweRight is not the IRS and does not give tax or legal advice.

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