10 years
Generally, under IRC § 6502, the IRS will have 10 years to collect a liability from the date of assessment. After this 10-year period or statute of limitations has expired, the IRS can no longer try and collect on an IRS balance due. However, there are several things to note about this 10-year rule.

What is the time limitation after which the IRS may not assess any additional taxes against the taxpayer for this tax return?

Three Years
The IRS Typically Has Three Years. The overarching federal tax statute of limitations runs three years after you file your tax return. If your tax return is due April 15, but you file early, the statute runs exactly three years after the due date, not the filing date.

What is the IRS 3 year rule?

In most cases, an original return claiming a refund must be filed within three years of its due date for the IRS to issue a refund. Generally, after the three-year window closes, the IRS can neither send a refund for the specific tax year.

Is there a statute of limitations on the IRS?

By law, the IRS statute of limitations on collecting a tax debt is 10 years. Did you know that the IRS only has 10 years to collect a tax debt? According to federal tax law, Internal Revenue Code (“I.R.C.”) Sec. 6502, the length of the period for the IRS to collect is 10 years after “assessment” of a tax liability.

When does the Statute of limitations begin to run?

The 10-year statute of limitations begins to run on the date of “assessment” of the tax. The IRS has only 10 years to collect the tax. The date that the IRS is no longer allowed to collect the tax is called the collection statute expiration date (“CSED”). Once the CSED expires, the IRS cannot legally collect the tax debt.

Is there Statute of limitations on late payment of taxes?

This deadline is bumped up by a year if you delay your payment of taxes, however. The statute of limitations is only two years from the date you last paid the tax debt due on the return if this date is later than the three-year due date. 3

Is there a statute of limitations on filing an amended tax return?

Amended returns claiming additional refunds adhere to the original statute of limitations—they must be filed with the IRS within three years of the original due date. The three-year statute of limitations clock begins on the day you file your taxes if you get an extension to file your return.