How long the IRS has to assess tax after the section 7507 insolvent-bank bar lifts

Plain-English summary

Section 7507(a) can bar the IRS from assessing tax against a bank while the bank is insolvent. This Chief Counsel Advice answers how much time the IRS has to assess once that bar lifts. The answer applies the general "tacking" rule for suspended limitations periods: the clock is held in abeyance while assessment is barred, then the unexpired portion of the normal assessment period resumes, plus the extra 90-day suspension that § 7507(c)(4) adds. So if the bar was in effect from the return's deemed filing date, the IRS gets the full three years under § 6501(a) plus 90 days after the bar ends. This is internal legal advice to IRS personnel, not a ruling for a taxpayer.

Ruling snapshot

• Question: After the § 7507(a) bar on assessing an insolvent bank ends, how long does the IRS have to assess the previously barred tax?
• Outcome: Advice given (remaining unexpired assessment period resumes, plus the 90-day § 7507(c)(4) suspension)
• Key authorities: IRC §§ 6501(a), 7507(a), 7507(c)(4)

Full text (IRS public release)

ID: CCA_2021121617012413 [Third Party Communication:

UILC: 6501.00-00, 7507.00-00 Date of Communication: Month DD, YYYY]

Number: 202202014
Release Date: 1/14/2022
From: --------------------
Sent: Thursday, December 16, 2021 5:01:24 PM
To: ----------------------
Cc: ----------------
Bcc:
Subject: RE: Assistance on Section 6501 Issue

Question:

Following the end of the period during which section 7507(a) bars assessment because
a bank was insolvent, what is the period for assessment of the tax that the Service was
previously prohibited from assessing?

Conclusion:

Following the end of the period during which section 7507(a) bars assessment, the
Service has the number of days remaining in the assessment period before the bar on
assessment became effective, plus the additional 90-day suspension of the limitations
period specified in section 7507(c)(4), to assess the tax previously barred from
assessment. If section 7507(a) barred assessment as of the deemed filing date of the
return, then beginning when assessment becomes allowed, the Service has the full
three years under section 6501(a) plus the 90 days under section 7507(c)(4) to assess.

Analysis:

The running of the statute of limitations on assessment and collection is “suspended
during, and for 90 days beyond, the period for which, pursuant to [section 7507],
assessment or collection may not be made . . . .” I.R.C. 7507(c)(4).

When the running of the statute of limitations is suspended, the unexpired portion of the
period of limitations is “held in abeyance”. Olds & Whipple v. United States, 22 F. Supp.
809, 819 (Ct. Cl. 1938). “[W]hen the period of suspension ceases the limitation period
again commences to run.” Id. See, e.g., Treas. Reg. § 301.6503(j)-1(d)(4)(ii)(Ex.1));
IRM 25.6.1.9.6.2(5); see also Ramirez v. United States, 538 F.2d 888, 893 n.10 (Ct. Cl.
1976); In re Depasture, 419 B.R. 518, 522-24 (Bankr. M.D. Ga. 2009); Aura Grimes
Bales v. Commissioner, 22 T.C. 355, 358-59 (1954). Thus, the unexpired portion of the
period of limitations is in effect tacked onto the suspension period and remains to be
used after the suspension period ends. This “tacking” principle applies generally and is
no different in the context of section 7507.
2

For example, suppose that section 7507(a) barred the assessment of income tax of the
2015 tax year, and the bar was effective as of the deemed filing date of the 2015
income tax return and ended on March 1, 2021. The assessment period would not
expire until three years and 90 days after March 1, 2021.