Taxes
Unfiled tax returns: what actually happens, year by year
Not filing is worse than filing and not paying. The failure-to-file penalty is 5% of the unpaid tax per month, up to 25%; the failure-to-pay penalty is 0.5% per month. After a few years the IRS may file a substitute return for you with no deductions, and after three years any refund you were owed is gone for good. The way back is the same at every stage: file the missing years, then deal with the balance.
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One year behind
You owe the failure-to-file penalty on any balance, plus interest. If you were owed a refund, there is no penalty at all; file and collect it. Most one-year situations are solved by filing and either paying or setting up a short payment plan.
Three years behind
The refund on the oldest year is about to expire. If you had withholding or credits, file that year first. The IRS may have started sending notices (CP59, CP516, CP518) asking for the returns. A Substitute for Return is possible at this stage.
Six or more years behind
The IRS has likely filed substitute returns for some years, which produce a balance higher than you really owe because they include no deductions. You can replace an SFR by filing the real return; the balance is recalculated. The IRS's own policy is to require the last six years to bring you into compliance, so ten unfiled years is usually six returns of work, not ten.
The way back, in order
- Get your IRS wage and income transcripts for each missing year (free at irs.gov or through a tax professional). They show what the IRS already knows.
- File the missing years, oldest first if refunds are at stake, newest first if the IRS is already assessing.
- Once filed, address the balance: payment plan, Currently Not Collectible status, or in some cases an Offer in Compromise.
- Ask for first-time penalty abatement on the first year if you qualify.
Questions people ask
- Will I go to jail for not filing?
- Almost never. Criminal cases are reserved for deliberate evasion with large amounts. Civil penalties and collection are what nearly everyone faces, and both are fixable.
- How many years back do I need to file?
- The IRS generally considers you compliant with the last six years filed, though it can require more in specific cases. Years where you are owed a refund are worth filing for the money if they are within three years of the due date.
- Can I file old returns myself?
- Yes. You need the correct year's forms and your transcripts. Multiple years with self-employment income or SFRs already filed are where professional help pays for itself.