3.31.20 – Changes to NOL rules under IRC Section 172(a)

By March 31, 2020 Corporate Tax, Crisis

Changes to NOL rules under IRC Section 172(a)

The CARES Act temporarily suspends the 80% taxable income limitation on the use of a net operating loss (NOL) to offset taxable income for tax years beginning after December 31, 2017 and before January 1, 2021. Taxpayers may elect to:

  • Carry NOLs arising in any tax year beginning after December 31, 2017, and before January 1, 2021, back five years
  • Exclude an IRC Section 965 transition tax year from the five-year NOL carryback period

Taxpayers may not use the NOL carryback to directly reduce the amount of IRC Section 965 transition tax incurred in a transition year. Taxpayers may still carry NOLs forward if they decide against carrying them back.

The carryback or carryforward of an NOL may affect a taxpayer’s (1) allowable IRC Section 250 deduction (both against foreign-derived intangible income (FDII) and global intangible low-taxed income (GILTI)); (2) allowable foreign tax credits (FTCs); (3) base erosion anti-abuse tax (BEAT) liability, and (4) in some cases, the taxpayer’s IRC Section 965 transition tax liability.

Temporary changes to IRC Section 163(j) limitation

The CARES Act generally allows taxpayers to increase the 30% of adjusted taxable income (ATI) limitation on business interest expense to 50% of ATI for any tax year beginning in 2019 or 2020. Taxpayers may elect not to apply the higher 50% limitation. Taxpayers may also elect to use their 2019 ATI (in lieu of 2020 ATI) in their 2020 tax year to calculate their 2020 IRC Section 163(j) limitation. If the additional deduction yields negative tax consequences for another tax provision, such as IRC Section 59A (BEAT), taxpayers may decide not to elect to apply the increased IRC Section 163(j) limitation.

For tax year 2019, partnerships must use the 30% of ATI limitation. The ATI limitation increases to 50% of ATI for partnerships in their 2020 tax years, unless the partnership elects not to apply the higher limitation. The partnership may elect to substitute tax year 2019 ATI for tax year 2020 ATI.

Partners may treat 50% of any excess business interest expense (EBIE) allocated to them from a partnership in tax year 2019 as automatically paid or accrued to them in the partner’s 2020 tax year, without further IRC Section 163(j) limitations at the partner level (i.e., the partner can deduct that 50% portion regardless of the partner’s ATI). The remaining 50% of 2019 EBIE is subject to the “normal” testing rules for EBIE at the partner level (i.e., the partner needs to receive an allocation of excess taxable income (ETI) from that same partnership in future tax years to potentially free up those amounts). The partner may elect not to apply this special rule.


The modification to the NOL carryback rules may yield a cash benefit to taxpayers that can use their NOLs. There may, however, be some unanticipated international tax consequences arising from the interaction of modified IRC Section 172(a) with other IRC provisions.

IRC Section 965 transition tax: Carrying an NOL to a pre-transition tax year does not directly impact the amount of a taxpayer’s transition tax inclusion. However, the NOL deduction claimed in that carryback year could increase the taxpayer’s FTC carryover from that year. The FTC carryover would need to be taken into account in each succeeding tax year under IRC Section 904(c), and a greater FTC carryover could be available in the IRC Section 965 transition tax year (whether 2017 or 2018), thus reducing the taxpayer’s transition tax liability.

IRC Section 250 deduction: The CARES Act does not amend the taxable income limitation in IRC Section 250(a)(2), which otherwise reduces the allowable IRC Section 250(a)(1) deduction when the sum of a taxpayer’s FDII and GILTI exceeds its taxable income for the year (without regard to IRC Section 250). Effectively, the IRC Section 250(a)(2) limitation may result in taxpayers utilizing a 21% tax attribute (an NOL deduction) against items of income (FDII and GILTI), subject to a lower rate of tax because of the IRC Section 250 deduction.

FTC limitation: A greater NOL deduction will reduce a taxpayer’s FTC limitation under IRC Section 904, whether the NOL source is foreign or domestic. As previously noted, a taxpayer will generally have a greater FTC carryforward coming out of the NOL carryback year. A domestic-source NOL may create, or increase, an overall domestic loss (ODL) account, which may be beneficial in a subsequent tax year. An ODL account from a pre-TCJA tax year would be subject to the transition rules included in the final FTC regulations (TD 9882). A foreign-source NOL may create, or increase, a separate limitation loss or an overall foreign loss account, which could be detrimental in a subsequent tax year, including in the IRC Section 965 transition tax year. The transition rules in TD 9882 would apply to this account when transitioning from a pre-TCJA tax year to a post-TCJA tax year.

Taxpayers should also consider the tax rate differential between pre-TCJA and post-TCJA tax years. Generally, FTCs carried to pre-TCJA years offset income taxed at 35%, while FTCs utilized in a post-TCJA year will offset income taxed at a maximum 21% rate.

BEAT liability: An NOL carryback to a tax year for which IRC Section 59A is effective could create or increase a taxpayer’s BEAT liability. Simply stated, an NOL deduction reduces a taxpayer’s regular tax liability, which can create or increase the taxpayer’s base erosion minimum tax amount. As a result, a taxpayer that is an applicable taxpayer, as defined for BEAT purposes, and that elects to carry back an NOL may be subject to a BEAT liability depending on its adjusted regular tax liability in the carryback year. This will likely come as a surprise to many taxpayers.

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