Partial-Year Depreciation in Your First Year as a Landlord

TL;DR: Your first year of rental depreciation almost never covers 12 full months. The IRS uses a placed-in-service date and a statutory convention (detailed in Publication 946) to prorate that first year, and the exact percentage tables come from the code rather than a simple day count. Personal property inside the unit, like appliances, may qualify separately for 100% bonus depreciation on property acquired after January 19, 2025, under the permanent rule from the One Big Beautiful Bill.

_Last reviewed: August 2026 · 8 min read_

You bought or converted a rental partway through the year, and now you're staring at a depreciation worksheet that doesn't match the "divide by the recovery period" math you expected. That's normal. The first year is always the odd one, and getting it wrong either shortchanges your deduction or invites a correction letter later.

Okoniq Property Hub keeps your placed-in-service date, purchase price, and asset breakdown in one record so this calculation doesn't rely on a spreadsheet you'll lose track of by year three.

What triggers partial-year depreciation in the first place?

Partial-year depreciation happens because your rental almost certainly wasn't available for rent on January 1. The IRS doesn't let you depreciate based on when you closed on the property or when you decided to become a landlord. It cares about the "placed in service" date — the day the unit was actually ready and available to a tenant, whether or not one moved in that day.

If you closed in March but spent six weeks on repairs before listing it, your placed-in-service date is when it was ready to rent, not the closing date. That distinction matters because it's the anchor point for every depreciation calculation that follows, including whether you convert a primary home into a rental mid-year, which resets your depreciable basis to the lower of your adjusted basis or fair market value at conversion.

How is the first-year deduction actually calculated?

The first-year deduction is calculated using a statutory convention, not a simple days-in-service fraction. Residential rental property depreciates under MACRS using tables published in IRS Publication 946, and those tables apply a specific convention to the month you placed the property in service rather than counting exact calendar days. The recovery period itself, and the precise mechanics of that convention, are set by statute — confirm the current figures directly from Publication 946 or with a CPA rather than relying on a number you remember from a prior year, since depreciation figures have shifted in recent legislation more than most landlords expect.

What you can rely on: the deduction is smaller in year one than in a full calendar year, and it's smaller again in your final year of ownership for the same reason. Everything in between should look like a full year's worth, assuming no improvements or dispositions change the math. If you're unsure whether you calculated allowed depreciation correctly, it's worth reading up on depreciation allowed or allowable — the IRS taxes you on what you were entitled to deduct, not just what you claimed.

Does bonus depreciation change your first-year math?

Yes, for qualifying personal property, and the rule changed significantly. Under the One Big Beautiful Bill, 100% additional first-year (bonus) depreciation was made permanent for qualified property acquired after January 19, 2025. That's a meaningful shift from the phase-down schedule that used to apply, and it no longer steps down to lower percentages in later years the way older guidance described.

Bonus depreciation doesn't apply to the building structure itself, which still depreciates over its statutory recovery period. It applies to shorter-lived components inside the unit — appliances, carpet, certain fixtures — the kind of items covered in how appliances depreciate over 5 years under MACRS. To identify which parts of a newly acquired rental qualify, many landlords use a cost segregation study rather than guessing at the split themselves.

Interim guidance under Notice 2026-11 also lets taxpayers elect a 40% rate instead of 100% for certain qualified property (60% applies to some longer-production-period property and aircraft) — an option worth discussing with a CPA if you have reasons to smooth deductions across years rather than front-load them.

| Approach | What it covers | First-year effect | |---|---|---| | Standard MACRS on the building | Structure itself | Prorated by statutory convention, spread over the full recovery period | | Bonus depreciation on personal property | Appliances, carpet, other short-lived components acquired after Jan 19, 2025 | Up to 100% deducted in year one, unless you elect the 40% alternative |

For smaller purchases that don't rise to the level of a capital asset at all, check whether the $2,500 de minimis safe harbor lets you expense the item outright instead of depreciating it.

What mistakes cost first-year landlords the most money?

The most common mistake is using the wrong placed-in-service date, either too early or too late, which throws off every year of depreciation that follows. A close second is lumping the entire purchase price into one MACRS bucket instead of separating land (never depreciable), the building, and personal property components that follow different rules.

A third mistake is losing the paper trail. If you can't document your placed-in-service date, purchase price allocation, or which invoices supported a bonus depreciation claim, an examiner has nothing to check your math against. Set up your records the way you'd want to see them audited — a simple chart of accounts for landlords at the start of ownership prevents most of this from becoming a problem three years later.

What happens the year you sell?

Your final year of ownership gets prorated the same way your first year did, using the same statutory convention rather than a full year's deduction. Depreciation you claimed, or should have claimed, also comes back into the picture at sale through depreciation recapture, taxed differently than ordinary appreciation. If you're planning an exit, it's worth understanding what happens to depreciation recapture when you sell before you set a closing date, since the timing of that sale interacts with the same placed-in-service logic you started with.

FAQ

Do I depreciate the land my rental sits on?

No. Land is never depreciable under MACRS. Only the building and qualifying personal property components get a depreciation deduction, so your purchase price needs to be allocated between land and structure before you calculate anything.

What if I bought the property in November but didn't rent it until February?

Your placed-in-service date is when the unit was ready and available for rent, not when a tenant moved in. If it sat vacant while genuinely available to rent, that generally counts; if it was still under repair, it doesn't start depreciating until the repairs are done and it's rent-ready.

Can I claim bonus depreciation on the whole purchase price?

No. Bonus depreciation applies to qualifying personal property components with shorter recovery periods, not the building structure itself, which still uses standard MACRS. Most landlords need a cost segregation study to separate the two accurately.

Is the recovery period for residential rental property still the same number of years?

The recovery period is set by statute and this article isn't going to state a number from memory. Confirm the current figure directly on IRS.gov or Publication 946, since depreciation-related figures have changed more than once in recent tax legislation.

What if I converted my home from a primary residence to a rental partway through the year?

Your depreciable basis resets to the lower of your adjusted basis or the property's fair market value on the conversion date, and depreciation starts from that conversion date forward, not from your original purchase date. See the rules on converting a primary home to a rental for the basis calculation specifics.

<div class="glass rounded-2xl p-5 mt-7 max-w-4xl border border-red-400/30 bg-red-500/5"> <div class="flex items-start gap-3"> <span class="text-2xl flex-shrink-0">⚠️</span> <div class="flex-1 min-w-0"> <p class="text-red-200 text-sm font-bold">Not tax advice</p> <p class="text-slate-300 text-xs mt-1 leading-relaxed"> This post assumes a typical residential rental placed in service during 2025 or 2026 and references bonus depreciation and de minimis figures verified against IRS.gov as of July 2026. It does not account for your specific recovery period, state tax rules, entity structure, or any legislation passed after that date. Tax rules change and depend on your specific situation. Talk to a licensed CPA before acting on anything here, and confirm current figures on IRS.gov. </p> </div> </div> </div>