For an interest-abatement overpayment with no refund claim filed, the 2-year look-back runs from the date the IRS allows the refund, not from how long processing took

Plain-English summary

This internal Chief Counsel email addresses how the refund "look-back" limitation works in an interest-abatement case, and whether the time the IRS takes to decide the abatement affects how much can be refunded. Chief Counsel advised it does not. Where no refund claim was filed, Section 6511(b)(2)(C) sets the allowable amount by reference to the date the credit or refund is allowed, so the look-back runs two years back from that allowance date. Under Section 6407 and Treas. Reg. § 301.6407-1, the "date of allowance" is the date an authorized IRS officer first certifies (schedules) the overassessment, citing Rev. Rul. 2001-40. Where a claim was filed, Section 6511(b)(2)(B) instead limits the refund to payments made in the two years before the claim, and again the speed of IRS processing does not bar the overpayment. This is guidance to IRS personnel on fixing the correct measuring date, not a ruling for a taxpayer.

Ruling snapshot

• Question: In an interest-abatement overpayment, does the IRS's processing time affect the 2-year refund look-back, and what date starts the clock?
• Outcome: advice given (look-back runs from the date the refund is allowed/certified; processing time is irrelevant)
• Key authorities: IRC §§ 6511(b)(2)(B), 6511(b)(2)(C), 6407; Treas. Reg. § 301.6407-1; Rev. Rul. 2001-40

Full text (IRS public release)

ID: CCA_2022041109053650 [Third Party Communication:

UILC: 6511.01-00, 6407.00-00 Date of Communication: Month DD, YYYY]

Number: 202216016
Release Date: 4/22/2022
From: ---------------------
Sent: Monday, April 11, 2022 9:05:36 AM
To: --------------------
Cc: --------------------------------------------------------------------
Bcc:
Subject: RE: Forwarded assignment: Interest Abatement Project

Good morning --------,

As we understand it, you have raised an issue of whether the time it takes the IRS to
determine whether an abatement of interest is appropriate has a direct correlation on
whether the overpayment is barred in whole or in part. In other words, how to determine
the 2-year lookback limitation.

In the case of a taxpayer who has not filed a claim for refund, IRC 6511(b)(2)(C)
provides the answer. If no claim is filed, the amount allowed is determined based on
the date the credit or refund is allowed. Since there was no return filed, the lookback
period is two years from the date the credit or refund is allowed. Therefore, the date you
determine as the date the credit or refund is allowed will determine what the lookback
period for the interest payments encompasses. The date on which the Secretary first
authorizes the scheduling of an overassessment in respect of any internal revenue tax
shall be considered as the date of allowance of refund or credit in respect of such
tax. IRC 6407. Treas. Reg. 301.6407-1 clarifies that this is the date on which the district
director or the director of the regional service center, or an authorized certifying officer
designated by either of them, first certifies the allowance of an overassessment in
respect of any internal revenue tax. This means, practically, the lookback period is two
years from the date on the taxpayer’s account showing the date the certifying officer
scheduled the overassessment relating to the abatement of interest. See Rev. Rul.
2001-40.

In the case of a taxpayer who has filed a claim for refund, IRC 6511(b)(2)(B) provides
the answer. The amount of credit or refund is limited by the portion of the payments
made in the two years preceding the filing of the claim. The speed at which the IRS
processes the claim does not determine whether an overpayment is barred.