IRS Notice CP518 – You Must File Your Tax Return

The IRS has not received a response from previous attempts to contact you about past-due returns. A response is required.

Type of notice: Late return

Likely next step: Address unfiled tax returns

Also see: Return and account problems, IRS penalties

Why you received IRS Notice CP518

  1. You did not file a tax return by the due date.
  2. The IRS sent you notices requesting that you file a tax return, but the IRS did not get a response.

Notice deadline: Not specified

If you miss the deadline: The IRS may prepare a return for you with the information the IRS has from employers, banks, and other payers. Penalty and interest charges will accrue on any unpaid balance the IRS thinks you owe. If you are owed a refund for the current tax year, or any prior year, it may be delayed because of your unfiled return.

Want more help?

Your tax professional can deal with the IRS for you. Learn more about H&R Block’s Tax Audit & Notice Services. Or make an appointment for a free consultation with a local tax professional by calling 855-536-6504 or finding a local tax pro.

Letter from the IRS?

Your local H&R Block tax pro can look into it for you.

Schedule a Free Consultation

Or call 855-536-6504

Related Information

How to File Back Tax Returns with the IRS

Learn about the consequences and complications of an unflied tax return from the experts at H&R Block.

How to Research Your IRS Account

Requesting your tax transcripts is the best way to research your IRS tax account. You can also authorize your tax pro to communicate with the IRS for you.

Don’t Pay an IRS Penalty Without Looking Into Penalty Relief

The IRS grants four types of penalty relief, but many taxpayers don't ever ask. Learn how to request penalty abatement from the IRS.

How to Get Your Old IRS Forms W-2 and 1099

Need copies of your old Forms W-2 or 1099? Learn about the four different ways to obtain IRS wage and income transcripts from the tax experts at H&R Block.

It’s Been A Few Years Since I Filed A Tax Return. Should I Start Filing Again?

If you haven't filed tax returns in awhile, there are things you need to know. Learn how to address back tax returns and what you can expect when you file.