A real property trade or business election under Internal Revenue Code Section 163(j)(7)(B) lets a qualifying real estate business escape the federal cap that otherwise limits business interest deductions to 30 percent of adjusted taxable income, in exchange for a permanent switch to slower depreciation on its real property.1Internal Revenue Service. Questions and Answers About the Limitation on the Deduction for Business Interest Expense The election is irrevocable once made, so the decision turns on whether the interest you would otherwise lose is worth more than the depreciation you give up.
What the Election Actually Does
Section 163(j) caps deductible business interest at the sum of business interest income, 30 percent of adjusted taxable income (ATI), and any floor plan financing interest.2Office of the Law Revision Counsel. 26 USC 163 – Interest For a leveraged real estate operation with little interest income, the 30-percent-of-ATI figure is what bites.
That figure got significantly tighter starting in 2022. Before then, ATI added back depreciation, amortization, and depletion. For tax years beginning after December 31, 2021, those add-backs are gone.1Internal Revenue Service. Questions and Answers About the Limitation on the Deduction for Business Interest Expense Real estate businesses tend to have large depreciation deductions, so the base shrank and the cap tightened. That is what pushed the election from a niche move into a routine question for anyone carrying real property debt.
Interest disallowed under the cap is not lost. It carries forward indefinitely and is treated as paid or accrued in the next tax year, subject to the limitation again in that year.1Internal Revenue Service. Questions and Answers About the Limitation on the Deduction for Business Interest Expense A business that never grows into its cap can end up with a large deferred stack.
Check the Small Business Exception First
Before running any numbers on the election itself, confirm the interest limitation applies to you. Section 163(j) does not apply to taxpayers meeting the gross receipts test under Section 448(c): average annual gross receipts of $25 million or less over the prior three years, adjusted for inflation.1Internal Revenue Service. Questions and Answers About the Limitation on the Deduction for Business Interest Expense The 2025 threshold was $31 million, and the 2026 figure will be modestly higher once the IRS publishes it.
If your receipts fall under that threshold, you already have unlimited interest deductions. Electing anyway would impose the depreciation penalty for no benefit.
Who Qualifies
The election is open to any trade or business within the Section 469(c)(7)(C) definition: real property development, redevelopment, construction, reconstruction, acquisition, conversion, rental, operation, management, leasing, and brokerage.3Legal Information Institute. 26 USC 469(c)(7) – Definition of Real Property Trade or Business Those eleven categories cover essentially the full lifecycle of a real estate asset. A commercial developer qualifies; a residential property manager qualifies; a leasing operation qualifies.
The trade or business has to be primarily engaged in one or more of those activities. A larger operation with a side line in real estate would need to isolate the qualifying activity and elect only for that piece.
The Depreciation Cost
An electing business must depreciate certain real property under the Alternative Depreciation System (ADS), which uses straight-line recovery over longer periods than the standard system.1Internal Revenue Service. Questions and Answers About the Limitation on the Deduction for Business Interest Expense The affected property and periods:
- Residential rental property: 30 years under ADS versus 27.5 years standard. Residential rental means buildings where at least 80 percent of gross rental income comes from dwelling units.4Legal Information Institute. 26 USC 168(e)(2) – Residential Rental or Nonresidential Real Property
- Nonresidential real property: 40 years under ADS versus 39 years standard. This covers office, retail, and warehouse.5Office of the Law Revision Counsel. 26 USC 168 – Accelerated Cost Recovery System
- Qualified improvement property (interior improvements to nonresidential buildings): 20 years under ADS versus 15 years standard.
The extra year or two on building lives is not where the money is. The real cost is that ADS property cannot claim bonus depreciation under Section 168(k).1Internal Revenue Service. Questions and Answers About the Limitation on the Deduction for Business Interest Expense For qualified improvement property in particular, that first-year deduction can be a large number.
How large depends on when the property is placed in service. Bonus depreciation is phasing down. For property placed in service during 2026, the bonus percentage is 20 percent.6Internal Revenue Service. Revenue Procedure 2026-15 That is a meaningful but shrinking cost of electing. Taxpayers who elected years ago when bonus was 80 or 100 percent gave up considerably more.
How to File the Election
The election is made by attaching a written statement to a timely filed original federal income tax return, including extensions, for the year the election is to take effect.7eCFR. 26 CFR 1.163(j)-9 – Elections for Excepted Trades or Businesses Miss that deadline and you cannot elect for that year. Title the statement “Section 1.163(j)-9 Election.”
The statement must include:
- The taxpayer’s name and address.
- A Social Security number for an individual or an employer identification number for an entity.
- A description of the electing trade or business sufficient to demonstrate qualification, including the principal business activity code.
- A declaration that the taxpayer is making an election under Section 163(j)(7)(B).
The business description is where thin filings get challenged. “Real estate activities” does not demonstrate qualification. Say what the property is, what work you perform, and which of the eleven statutory categories it falls under. One statement can cover multiple trades or businesses.7eCFR. 26 CFR 1.163(j)-9 – Elections for Excepted Trades or Businesses
If a partnership elects, it does so at the entity level on the partnership return. The election covers only the trade or business the partnership conducts, not separate real estate activities partners run on their own. Once elected, the partnership’s business interest expense is no longer subject to Section 163(j), and nothing flows through to partners as limited interest. For a consolidated group, the designated agent files the election on behalf of the group, and the statement only needs the agent’s name and identification number.7eCFR. 26 CFR 1.163(j)-9 – Elections for Excepted Trades or Businesses
Under the regulations the election is irrevocable and applies to the year of election and every year after for that trade or business.7eCFR. 26 CFR 1.163(j)-9 – Elections for Excepted Trades or Businesses There is no built-in mechanism to reverse it if your debt or depreciation picture changes.
A Limited Window to Withdraw a Prior Election
The IRS opened a targeted exception in Revenue Procedure 2026-17. Taxpayers who elected RPTOB status for a tax year beginning in 2022, 2023, or 2024 can withdraw the election, and the withdrawal is treated as if the election had never been made. That reverts the taxpayer to the standard interest limitation and restores standard depreciation and bonus eligibility for the years involved.8Internal Revenue Service. Revenue Procedure 2026-17
To withdraw:
- File an amended federal income tax return, amended Form 1065, or administrative adjustment request for the tax year the election was made.
- Write “FILED PURSUANT TO REV. PROC. 2026-17” at the top of the amended return.
- Attach a statement titled “Revenue Procedure 2026-17 Section 163(j)(7) Election Withdrawal” identifying the taxpayer and confirming the withdrawal.
- File amended returns for any subsequent tax years affected by the withdrawal.
The deadline is the earlier of October 15, 2026, or the expiration of the statute of limitations for the relevant year. Partnerships under the centralized audit regime must file the administrative adjustment request by the earlier of October 15, 2026, or the last day they are otherwise permitted to file such a request for that year.8Internal Revenue Service. Revenue Procedure 2026-17
The math has shifted for anyone who elected when bonus depreciation was 80 or 100 percent. If the interest deduction saved has been modest and the forgone bonus was large, this window is the chance to undo it.
What Happens if the Election Is Invalid
If you elect but the business does not actually fall within the Section 469(c)(7)(C) activities, the election is invalid and your interest deductions revert to the 30-percent-of-ATI cap. Excess deductions already claimed get disallowed and become a carryforward to the next year rather than a permanent loss.2Office of the Law Revision Counsel. 26 USC 163 – Interest The consequence is a recalculated tax liability, which on a large commercial property can be substantial. Describe the business clearly in the election statement, and confirm at least one of the eleven qualifying activities applies.
Not the Same as Real Estate Professional Status
The RPTOB election under Section 163(j) and “real estate professional” status under Section 469(c)(7) share the same definition of qualifying activities, which is why they get mixed up. They do different things. The election lifts the interest deduction cap on a business. Real estate professional status is an individual determination that allows rental real estate losses to be treated as non-passive so they can offset active income.9Internal Revenue Service. Publication 925 – Passive Activity and At-Risk Rules Qualifying for one does not qualify you for the other, and the RPTOB election has no hour requirement attached to it.