Back Tax Filing

What is back tax filing?

Filing back taxes means preparing and submitting tax returns for past years that were never filed. These are usually federal or state income tax returns you were required to submit but didn’t, leaving potential taxes owed, or refunds, unresolved.

Why is filing back taxes important?

Submitting overdue returns ensures compliance with the IRS. Without filing:

• Penalties accrue: 5% per month for late filing, up to 25% of the unpaid tax, plus interest.
• The IRS may file a substitute return, excluding deductions or credits you’re eligible for.
• Refunds, if due, are lost after three years from the original deadline.
• You cannot be placed into any IRS Fresh Start Program until all back taxes have been filed up to date.

Filing starts the process of addressing any debt and avoids the steepest penalties, even if payment isn’t immediate.

Options for filing back taxes

There are approaches to filing unfiled returns:

• Do it yourselfCollect past income records (W-2s, 1099s, or bank statements) and submit prior-year forms like Form 1040. This requires finding old documents, understanding tax laws that may have changed, and avoiding errors that could trigger audits.
• Use tax softwareCertain programs allow past-year filings, but you must enter all data accurately and confirm support for the years in question. Complex situations, like self-employment income, may not be fully covered.
• Hire a tax professional (recommended)A professional is the best choice for filing back taxes. They handle the process accurately, gathering records, preparing returns, and ensuring compliance throughout. If filing reveals a balance owed, which is often the case, a professional can also negotiate with the IRS to resolve the debt through payment plans or settlements.

Last updated October 15, 2026.