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IRS updates FAQs regarding section 163(j) limitation on the deduction for business interest expense

Updated FAQs address TCJA and OBBBA amendments to the section 163(j) limitation

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August 19, 2026

The IRS today released updated frequently asked questions (FAQs) in Fact Sheet 2026-14 regarding the limitation on the deduction for business interest expense under section 163(j).

The FAQs have been revised to:

  • Address the 2017 “Tax Cuts and Jobs Act” (TCJA) and the “One Big Beautiful Bill Act” (OBBBA) amendments to the section 163(j) limitation.
  • Delete Topic D CARES Act questions and answers that are no longer applicable.
  • Re-designate Topic E as new Topic D and clarify that the term “change” in new Topic D denotes specific changes to statutory language not any change to the operative effect of the statute. That is, some changes to the statutory language made by the OBBBA merely clarified the operation of the existing statute. New Topic D has been revised to distinguish between substantive changes in law and clarifications of existing law. 

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