How long can the IRS audit you?
How far back can the IRS go to audit my return? Generally, the IRS can include returns filed within the last three years in an audit. If we identify a substantial error, we may add additional years. We usually don't go back more than the last six years. What is the IRS 6 year rule? The six-year rule allows for payment of living expenses that exceed the CFS, and allows for other expenses, such as minimum payments on student loans or credit cards, as long as the tax liability, including penalty and interest, can be full paid in six years.