Many people fall behind on filing their taxes — sometimes for a year, sometimes for several. Life gets busy, paperwork piles up, and before you know it, tax season has come and gone.
But how long can you actually go without filing taxes before it becomes a legal issue?
The answer: not long — and the penalties grow quickly.
Below is a clear, easy-to-understand guide on what happens if you don’t file, how long the IRS allows you to wait, and why filing sooner rather than later is critical.
1. There Is No Legal “Grace Period” — You Must File Every Year
The IRS requires all eligible taxpayers to file a return every tax year. Even missing one year can trigger penalties, and missing multiple years increases the risk of:
- Accrued late fees
- IRS notices and collections
- Wage garnishment
- Freezing or levying of bank accounts
- Tax liens on property
- Possible criminal charges (in extreme cases)
The IRS rarely pursues criminal charges unless it believes you’re intentionally avoiding taxes — but ignoring filings for years puts you closer to that risk.
2. The IRS Can Penalize You After Just One Missed Filing
If you miss the deadline (typically April 15), these penalties begin:
Failure-to-File Penalty
- 5% of unpaid taxes per month
- Up to a maximum of 25%
Failure-to-Pay Penalty
- 0.5% per month of unpaid taxes
- Up to 25%
If you owe taxes and don’t file, both penalties can stack — meaning the longer you wait, the more expensive it becomes.
3. How Long Can You Go Without Filing? The IRS “Six-Year Rule”
The IRS typically requires taxpayers to file at least the last 6 years of returns to become compliant again.
This is known as the IRS Six-Year Lookback Rule.
If you have gone 7, 10, or even 20+ years without filing, the IRS will still expect the most recent 6 years, though in extreme cases they may demand more depending on income history.
Important:
The longer you wait…
- The more penalties compound
- The harder it is to gather old documents
- The higher the likelihood of IRS enforcement
4. IRS Can File a “Substitute Return” If You Don’t File
If you skip filing, the IRS may file a return on your behalf — called a Substitute for Return (SFR).
This is bad because:
- They do NOT include your deductions
- They do NOT include credits
- They assume the highest possible tax liability
This often results in a much larger tax bill than what you would owe if you filed properly.
5. Refunds Expire After 3 Years
If the IRS owes you money, you have 3 years to claim your refund.
After that, the refund disappears forever — legally forfeited.
Many people delay filing out of fear, not realizing they’re leaving free money on the table.
6. If You Haven’t Filed in Years, the Solution Is Simple: File ASAP
Catching up on overdue returns is always better than waiting for the IRS to come to you. With the right help, you can:
- Reduce or eliminate penalties
- Set up payment plans
- Resolve tax notices
- Avoid escalated enforcement
- Reclaim refunds you’re still eligible for
A professional Tax preparation service like A&C Tax & Business Services can:
- File back tax returns
- Organize missing documents
- Negotiate with the IRS
- Request penalty relief
- Handle bookkeeping for self-employed taxpayers
- Resolve wage garnishment or levy threats
- Help you start fresh and compliant
Their team specializes in taxes for individuals, small businesses, corporations, and self-employed workers — keeping you protected and compliant.
7. Final Answer: How Long Can You Legally Go Without Filing?
Legally:
You must file every year, and delaying triggers penalties immediately.
Practically:
You can go up to 6 years before the IRS forces compliance, but delaying increases the risk of:
- Penalties
- Interest
- IRS enforcement
- Lost refunds
- Substitute returns
- Legal complications
If you’re behind, the safest move is to file now and get into compliance before the IRS takes action.


