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How Much Can I Depreciate My Rental?

Estimate depreciable basis, annual straight-line write-off, first-year mid-month depreciation, and a year-by-year residential or commercial schedule.

Quick answer: I estimate rental depreciation by subtracting land from purchase price, adding capitalized closing costs and improvements, then spreading that depreciable basis over 27.5 years (residential) or 39 years (commercial) using straight-line recovery and the mid-month convention. This is educational only — not tax advice.

Depreciation assumptions

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0%20% typical starting point60%

Allocated land value: $80,000 (20.00%)

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Improvements that add value are usually capitalized. Routine repairs are often deducted in the year paid — see repairs vs improvements.

Mid-month convention: first year uses 6.5 months of depreciation if placed in service in June.

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Educational notice (not tax advice)

This calculator is educational only and is not tax, legal, or accounting advice. It does not model cost segregation, bonus depreciation, listed property, or depreciation recapture. Consult a CPA before you file or rely on these numbers.

Formulas used

  • Depreciable basis = Purchase price − Land + Capitalized closing costs + Capital improvements
  • Annual depreciation = Depreciable basis ÷ Recovery period (27.5 or 39 years)
  • First-year depreciation = Annual depreciation × (12.5 − month placed in service) ÷ 12
  • Estimated tax savings = Depreciation × Marginal tax rate

Annual depreciation

$12,364

Residential 27.5-year straight-line

Depreciable basis

$340,000

First-year (prorated)

$6,697

Estimated annual tax savings

$2,967

First-year tax savings

$1,607

AI Depreciation Insights

Yearly summary

Recovery period27.5 years · 28 tax years
First-year months (mid-month)6.5 months
Last-year remaining write-off$11,848
Lifetime estimated tax savings$81,600
Full-year depreciation vs rent36.80% of income
Commercial 39-yr annual$8,718

Year-by-year depreciation schedule

Viewing 27.5-year straight-line recovery with mid-month convention from June 2026. Switch views to compare residential and commercial schedules on the same basis.

YearCalendarDepreciationCumulativeRemaining basisEst. tax savings
12026$6,697$6,697$333,303$1,607
22027$12,364$19,061$320,939$2,967
32028$12,364$31,424$308,576$2,967
42029$12,364$43,788$296,212$2,967
52030$12,364$56,152$283,848$2,967
62031$12,364$68,515$271,485$2,967
72032$12,364$80,879$259,121$2,967
82033$12,364$93,242$246,758$2,967
92034$12,364$105,606$234,394$2,967
102035$12,364$117,970$222,030$2,967
112036$12,364$130,333$209,667$2,967
122037$12,364$142,697$197,303$2,967
132038$12,364$155,061$184,939$2,967
142039$12,364$167,424$172,576$2,967
152040$12,364$179,788$160,212$2,967
162041$12,364$192,152$147,848$2,967
172042$12,364$204,515$135,485$2,967
182043$12,364$216,879$123,121$2,967
192044$12,364$229,242$110,758$2,967
202045$12,364$241,606$98,394$2,967
212046$12,364$253,970$86,030$2,967
222047$12,364$266,333$73,667$2,967
232048$12,364$278,697$61,303$2,967
242049$12,364$291,061$48,939$2,967
252050$12,364$303,424$36,576$2,967
262051$12,364$315,788$24,212$2,967
272052$12,364$328,152$11,848$2,967
282053$11,848$340,000$0$2,844

FAQ: rental depreciation estimator

How do I estimate depreciation on my rental property?

I subtract land from the purchase price, add capitalized closing costs and capital improvements, then spread that depreciable basis using straight-line recovery: 27.5 years for residential rentals or 39 years for commercial property, with the mid-month convention in the first and last years.

Why can I not depreciate the land under my rental?

Land is not a wasting asset under common U.S. tax rules, so only the building and qualifying capital additions are depreciable. I allocate part of the purchase price to land using the closing statement, tax assessment, or an appraisal.

What is the mid-month convention for rental depreciation?

Residential and nonresidential real property generally use a mid-month convention. I treat the property as placed in service at the midpoint of the month I start using it as a rental, so the first year is a partial year even if I close on the 1st.

Is my rental 27.5-year residential or 39-year commercial?

Most houses, condos, and apartment buildings rented to tenants use 27.5-year residential rental recovery. Office, retail, and many other nonresidential buildings use 39 years. Mixed-use and special-use facts can differ, so I confirm classification with a CPA.

Do closing costs and improvements increase my depreciable basis?

Many acquisition costs that must be capitalized, plus later capital improvements, usually increase depreciable basis. Routine repairs are typically deducted in the year paid instead of being depreciated. This tool is an estimate, not a basis study.

Does this calculator give tax advice?

No. This estimator is educational only and is not tax, legal, or accounting advice. Cost segregation, bonus depreciation, partial-asset dispositions, and recapture are fact-specific. I consult a CPA before I file.

Ready to see how depreciation fits my cash flow?

Pair this write-off estimate with cash flow, cap rate, and ROI, or map a 1031 timeline if I am planning an exit.