100% Bonus Depreciation Is Permanent in 2026 — Landlords Need to Track Every Improvement

If you own rental property, one of the most valuable tax provisions for real estate investors just became permanent — and whether you actually benefit from it comes down to something unglamorous: how well you track what you spend on your properties.

The Treasury and IRS issued Notice 2026-11 confirming guidance on the permanent 100% additional first-year depreciation deduction — bonus depreciation — for eligible property acquired and placed in service after January 19, 2025, under the One Big Beautiful Bill Act (OBBBA). This matters enormously, because just months ago the law was on track to do the opposite.

What Actually Changed

Under the prior schedule, bonus depreciation was phasing out. It was set to fall to just 20% in 2026 and disappear entirely soon after. The OBBBA reversed that completely, permanently restoring the deduction to 100% for qualifying property placed in service after January 19, 2025.

For a rental investor, the practical effect is large. Instead of spreading the cost of qualifying components across many years, you can deduct up to 100% of their cost in the year they’re placed in service. The building itself still depreciates on the standard 27.5-year residential schedule — a $500,000 property earns roughly $18,000 a year in ordinary depreciation — but shorter-life components can now be written off immediately.

Where the Deduction Actually Lives: Cost Segregation

The building shell isn’t what qualifies for bonus depreciation. The value is in the shorter-life pieces inside and around it.

A cost segregation study reclassifies portions of a property from the 27.5-year (residential) or 39-year (commercial) schedule into 5-, 7-, and 15-year categories — appliances, cabinetry, flooring, certain fixtures, landscaping, and similar components. Property with a recovery period of 20 years or less generally qualifies for the 100% first-year deduction. So the appliances you install, the carpet you replace, the landscaping you add — properly classified — can potentially be deducted in full the year you place them in service rather than dribbled out over decades.

That’s a meaningful cash-flow advantage. But it only works if you can document exactly what was bought, when it went into service, and what it cost.

Why This Is Really a Recordkeeping Story

Here’s the catch that trips up small landlords: bonus depreciation is only as good as your records. To claim it you — or your accountant — need to know, for every improvement:

• What it was (so it can be classified correctly)
• When it was placed in service (the trigger date for the deduction)
• What it cost (the deductible amount)
• Whether it’s a repair or an improvement (repairs are deducted now; improvements are depreciated, and may qualify for bonus)

If those details live in a shoebox or your memory, you’ll either miss the deduction or hand your accountant a reconstruction project that costs more than it saves. The landlords who capture the full value of this permanent 100% deduction are the ones logging each improvement the day it happens.

Set Up to Capture It

You don’t need software to do this — you need a consistent place to record every property improvement with its date, cost, category, and repair-vs-improvement flag. A Rental Property Income & Expense Tracker handles exactly this: its maintenance log captures date, property, vendor, cost, and tax-deductibility for every job, and its Tax Deduction Summary keeps depreciation organized and mapped to Schedule E. When your accountant asks what qualifies for bonus depreciation this year, the answer is one tab away instead of a weekend of digging.

Permanent 100% bonus depreciation is a genuine gift to rental investors. But the IRS doesn’t hand it to you — you have to claim it, and you can only claim what you can document. Track every improvement, and this permanent provision quietly becomes one of the best tools in your portfolio.

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This article is for general information, not tax advice. Depreciation and cost segregation rules are complex — consult a qualified tax professional about your specific situation.