qbteachmt
Level 15

I googled your topic's title.

How far back can you file taxes?

Google told me:

six years
 
The IRS requires you to go back and file your last six years of tax returns to get in their good graces. Usually, the IRS requires you to file taxes for up to the past six years of delinquency, though they encourage taxpayers to file all missing tax returns if possible.
 
I also see the IRS knows the answer.
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