Real Estate Tax Calc
What changed
The IRS issued Revenue Procedure 2026-17 in March 2026, providing limited transition relief for real estate businesses that previously made a Section 163(j)(7) electing real property trade or business (RPTOB) election. The procedure (irs.gov/pub/irs-drop/rp-26-17.pdf) gives taxpayers that made this election for any tax year beginning in 2022, 2023, or 2024 a one-time opportunity to withdraw it by filing an amended return no later than October 15, 2026.
To understand why the IRS offered this relief, some background on the election is helpful. Section 163(j) caps the deduction for business interest expense at 30 percent of a business’s Adjusted Taxable Income (ATI). A real estate business can escape this limitation entirely by making a 163(j)(7) RPTOB election — but the trade-off is steep: the business must use the Alternative Depreciation System (ADS) rather than the general MACRS rules. ADS stretches residential rental depreciation from 27.5 years to 30 years and commercial property from 39 years to 40 years, and ADS property does not qualify for bonus depreciation.
The One Big Beautiful Bill Act (OBBBA), signed July 4, 2025, upended both sides of that trade-off. First, it permanently restored 100 percent bonus depreciation for qualifying property acquired and placed in service after January 19, 2025 — but only for property depreciated under MACRS. ADS property is excluded. Second, the OBBBA restored depreciation and amortization add-backs to the 163(j) ATI calculation, returning it to an EBITDA basis effective for tax years beginning after December 31, 2024. Clark Nuber notes that real estate and construction businesses are among the biggest beneficiaries of this change because of their heavy depreciation add-backs (clarknuber.com).
The result: many real estate businesses that made the RPTOB election in 2022–2024 are now paying a steep cost — ADS depreciation and no bonus — for protection from a 163(j) limitation that is far less binding than it was. Rev. Proc. 2026-17 is the IRS’s response: a rare, time-limited opportunity to reconsider.
Why it matters to investors
For leveraged real estate businesses — commercial operators, partnerships owning multiple rentals, and LLCs filing as partnerships — the RPTOB election was often the right call before the OBBBA. Full business interest deductibility was valuable when ATI was computed on an EBIT basis, which squeezed the cap hardest for depreciation-heavy businesses. ADS felt like a reasonable price for that protection.
That calculus has changed. Under the restored EBITDA calculation, depreciation is added back before applying the 30 percent ATI cap — substantially raising the interest deduction ceiling for real estate businesses. Many investors who would have hit the 163(j) limit under the old EBIT approach now have room to deduct all or most of their interest even without the election. Meanwhile, being locked into ADS prevents claiming 100 percent bonus depreciation on 5-, 7-, and 15-year cost-segregated components — a potentially large first-year deduction on qualifying acquisitions.
Per Seyfarth Shaw’s analysis (seyfarth.com), if a taxpayer withdraws the election under Rev. Proc. 2026-17, they are treated as though the RPTOB election had never been made. The business reverts to MACRS depreciation and becomes eligible for bonus depreciation on qualifying short-life components — while re-entering Section 163(j), but under the more favorable EBITDA-based ATI rather than the pre-2025 EBIT calculation.
The benefit is most significant for businesses that (a) made an RPTOB election in 2022–2024, (b) have qualifying acquisitions placed in service after January 19, 2025, and (c) would not meaningfully hit the EBITDA-based 163(j) cap even without the election. For highly leveraged businesses with thin operating income that still need the full interest deduction, retaining the election may be the right call — model both scenarios before deciding.
What to do before October 15
Determine whether you made the election. A 163(j)(7) RPTOB election would appear on a statement attached to your 2022, 2023, or 2024 federal return — typically Form 1065 (partnership), Form 1120-S (S corp), or the individual return of a sole proprietor. Ask your CPA or review prior returns to confirm whether the election is in place.
Model the trade-off. Withdrawing is not automatically beneficial; it depends on your leverage level and operating income. Compare (a) annual depreciation under ADS with no 163(j) limitation against (b) MACRS plus bonus depreciation on qualifying short-life components, subject to the EBITDA-based 163(j) cap. For properties acquired after January 19, 2025, bonus depreciation on cost-segregated 5-year and 15-year components can be particularly large. The cost segregation calculator on this site can provide a first-year savings estimate.
File amended returns by October 15, 2026. To withdraw, file an amended federal income tax return, amended Form 1065, or an administrative adjustment request (AAR) for the year of the original election, with the filing clearly marked FILED PURSUANT TO REV. PROC. 2026-17. The deadline is the earlier of the applicable statute of limitations or October 15, 2026 — fewer than two weeks away as of this writing. Rev. Proc. 2026-17 also allows a concurrent late election under Section 168(k)(7) to opt out of bonus depreciation for specific property classes, which may be appropriate if you have large suspended passive losses that cannot currently absorb the additional write-off.
Note on state conformity. Many states that decoupled from federal bonus depreciation also decoupled from the OBBBA changes to Section 163(j). Whether the election withdrawal has a parallel benefit on your state return depends on your state’s conformity. Confirm state-level implications with your CPA before filing.
How the Section 163(j) limitation actually works
Before deciding whether to withdraw, it helps to understand the mechanics of the limitation you are either escaping or re-entering. For a business that is subject to Section 163(j), the deduction for business interest expense in a given year is capped at the sum of three amounts: (1) the taxpayer’s business interest income, (2) 30 percent of adjusted taxable income (ATI), and (3) floor plan financing interest (relevant mainly to auto and equipment dealers, rarely to real estate). Any interest expense disallowed in the current year is not lost — it carries forward. For a C corporation the carryforward stays at the entity level indefinitely; for a partnership the disallowed amount passes out to the partners as excess business interest expense (EBIE), which each partner carries forward and can free up only against future excess taxable income or excess business interest income from the same partnership.
The definition of ATI is the crux of the OBBBA change. From 2018 through 2021, ATI was computed on an EBITDA basis — depreciation, amortization, and depletion were added back before applying the 30 percent cap. Beginning in 2022, a scheduled TCJA provision shifted ATI to an EBIT basis, meaning those deductions were no longer added back. Because real estate is depreciation-heavy, the EBIT rule sharply lowered ATI and made the 30 percent cap bind much harder — which is precisely why so many leveraged real estate businesses made the RPTOB election in 2022–2024. The OBBBA permanently restored the EBITDA add-backs for tax years beginning after December 31, 2024, reversing the squeeze.
One more threshold matters: the small business exemption. A business whose average annual gross receipts for the prior three years do not exceed the inflation-adjusted Section 448(c) threshold (roughly $31 million for 2025, indexed each year) is exempt from Section 163(j) altogether, unless it is a tax shelter. If you qualify for this exemption, the 163(j) limitation never applied to you in the first place, the RPTOB election bought you nothing, and withdrawing to reclaim MACRS and bonus depreciation is usually a straightforward win — subject only to the modeling and passive-loss cautions below.
A worked example: modeling the withdrawal
Numbers make the trade-off concrete. Assume a partnership owns leveraged commercial rental property and, in 2026, reports net operating income of $100,000 after depreciation but before interest, with $400,000 of annual depreciation and $140,000 of business interest expense. Its EBITDA is therefore $500,000 ($100,000 + $400,000).
Under the old EBIT basis (no depreciation add-back), ATI would be about $100,000. The 30 percent cap would allow only $30,000 of interest to be deducted, disallowing $110,000 as EBIE — a painful result that made the RPTOB election attractive. Under the restored EBITDA basis, ATI is $500,000, the 30 percent cap is $150,000, and the full $140,000 of interest is deductible with room to spare. The limitation that once justified the election no longer bites.
Now layer in depreciation. Suppose the partnership acquired a $4,000,000 depreciable building (land excluded) and placed it in service after January 19, 2025. A cost segregation study reclassifies, say, $800,000 into 5-, 7-, and 15-year components. Under the RPTOB election those components sit in ADS and earn no bonus; the partnership plods along at straight-line ADS rates. If the partnership withdraws the election, those same components revert to MACRS and become eligible for 100 percent bonus depreciation — an $800,000 first-year deduction (illustrative) that simply was not available before. The combined effect here — full interest deductibility on the EBITDA basis plus a large bonus deduction — is exactly the fact pattern Rev. Proc. 2026-17 was written to let taxpayers capture. Your own numbers will differ; the point is to run both scenarios rather than assume.
ADS versus MACRS: what the election really costs
The RPTOB election’s price is mandatory use of the Alternative Depreciation System. The recovery-period differences are: residential rental property, 30 years under ADS versus 27.5 years under MACRS; nonresidential real property, 40 years versus 39 years; and qualified improvement property (QIP), 20 years versus 15 years. On the building shell alone these differences are modest — a few tenths of a percent of basis per year.
The far larger cost is on the shorter-life components that a cost segregation study carves out. ADS requires straight-line recovery over longer class lives and, critically, disqualifies the property from bonus depreciation. MACRS, by contrast, uses accelerated 200 percent declining-balance methods for 5- and 7-year property and now permits 100 percent bonus on qualifying assets. For an investor who relies on cost segregation to generate large first-year deductions, being locked into ADS is the real sacrifice — not the extra half-year on the 39-year shell. This is why the withdrawal opportunity is most valuable to taxpayers with recent acquisitions and planned or completed cost segregation studies.
How to file the withdrawal, step by step
1. Confirm the election and the open year. Locate the RPTOB election statement on the originally filed 2022, 2023, or 2024 return and verify the statute of limitations for that year is still open, because the deadline is the earlier of the normal limitations period or October 15, 2026.
2. Choose the correct filing vehicle. S corporations and sole proprietors generally file amended returns (Form 1120-S or Form 1040-X with the relevant schedules). Partnerships are the complication: a partnership subject to the BBA centralized partnership audit regime usually cannot file a standard amended Form 1065 for a closed year and must instead file an administrative adjustment request (AAR) on Form 8082/amended 1065. Rev. Proc. 2026-17 is designed to accommodate both paths; confirm which applies to your entity.
3. Mark the filing and attach the statements. The amended return or AAR should be clearly labeled FILED PURSUANT TO REV. PROC. 2026-17, with the withdrawal statement and recomputed depreciation schedules attached. Your tax adviser will determine whether the depreciation catch-up is reported directly on the amended return or requires a Form 3115 change in accounting method.
4. Push adjustments through to owners. Partners and S corporation shareholders will receive corrected or AAR-based Schedules K-1 reflecting the revised depreciation and interest figures, and may need to adjust their own returns accordingly. Build in time for this — the owner-level filings cannot be an afterthought when the entity deadline is days away.
Common mistakes and planning cautions
Assuming withdrawal is always better. For a highly leveraged business with thin operating income, re-entering Section 163(j) — even on the friendlier EBITDA basis — can still disallow interest. If you would hit the cap and the interest matters more than the bonus, keeping the election may win. Model it.
Ignoring the passive activity loss rules. A large bonus depreciation deduction does you no immediate good if it is trapped by the Section 469 passive activity loss limitation. Unless you qualify as a real estate professional or materially participate in a short-term rental, the extra loss may simply suspend and carry forward — which can change the timing, though not the eventual value, of the benefit.
Overlooking the excess business loss limitation. Section 461(l) caps the net business loss a noncorporate taxpayer can use against other income (indexed annually), so a very large first-year deduction may be partially deferred at the individual level even if it clears the passive rules.
Forgetting the Section 168(k)(7) opt-out. If a big bonus write-off would be stranded by the loss limitations above, a concurrent election under Section 168(k)(7) to opt out of bonus for specific property classes lets you spread the deduction over the MACRS recovery period instead — sometimes the better answer. And do not forget state conformity, since many states neither follow OBBBA bonus depreciation nor the 163(j) changes.
Frequently asked questions
What is the Section 163(j)(7) RPTOB election?
An election that permanently exempts a real property trade or business from the Section 163(j) business interest expense limitation. The trade-off is mandatory use of ADS depreciation, which is slower than MACRS and ineligible for bonus depreciation.
Why would I want to withdraw the RPTOB election now?
The One Big Beautiful Bill Act permanently restored 100 percent bonus depreciation (which ADS property cannot use) and returned Section 163(j) to an EBITDA-based ATI calculation (far less restrictive than the pre-2025 EBIT basis). Many real estate businesses that made the election in 2022-2024 may now gain more from MACRS plus bonus depreciation than from the 163(j) exemption they traded ADS for.
What is the deadline to withdraw under Rev. Proc. 2026-17?
Amended returns must be filed by the earlier of the applicable statute of limitations or October 15, 2026. For elections made in 2022, 2023, or 2024, the window closes in days, not weeks.
Does withdrawing the election automatically give me bonus depreciation?
Not automatically. Withdrawal reverts the business to MACRS depreciation. You can then elect 100 percent bonus depreciation on qualifying 5-, 7-, and 15-year components placed in service after January 19, 2025. A concurrent Section 168(k)(7) election lets you opt out of bonus depreciation for specific property classes if a large suspended passive loss means you cannot currently use the deduction.
Does the Section 163(j) small business exemption let me skip all of this?
If your business meets the Section 448(c) gross receipts test — average annual gross receipts for the prior three years below the inflation-adjusted threshold (roughly $31 million for 2025, indexed yearly) and you are not a tax shelter — you are exempt from Section 163(j) entirely. In that case the limitation never applied, the RPTOB election gained you nothing, and withdrawing to recover MACRS and bonus depreciation is usually clearly beneficial, subject only to the passive-loss timing considerations.
My partnership already filed those years. Can it still withdraw?
Likely yes, but the mechanics differ. A partnership subject to the BBA centralized audit regime generally cannot file a plain amended Form 1065 for a closed year and instead files an administrative adjustment request (AAR). Rev. Proc. 2026-17 is written to permit both amended returns and AARs as applicable; the key constraint is the deadline — the earlier of the year’s statute of limitations or October 15, 2026.
How much slower is ADS depreciation than MACRS?
On the building shell the difference is small: 30 years versus 27.5 for residential rental, and 40 versus 39 for commercial. The large gap is on short-life, cost-segregated components (5-, 7-, and 15-year property), because ADS uses straight-line recovery over longer lives and — most importantly — is ineligible for bonus depreciation, while MACRS allows accelerated methods plus 100 percent bonus on qualifying assets.
What happens to business interest that was disallowed in prior years?
Disallowed business interest expense carries forward rather than being lost. For a C corporation it carries forward indefinitely at the entity level; for a partnership it passes to the partners as excess business interest expense (EBIE), which each partner frees up against future excess taxable income or excess business interest income from that same partnership. Re-entering Section 163(j) after withdrawal means tracking these carryforwards going forward.
Sources
Educational information and estimates only. Not tax advice. Tax rules change and vary by situation; consult a qualified tax professional before acting.