Online Tool Store
Rental Property Depreciation Calculator
Calculate annual and monthly straight-line depreciation from building value and useful life. Keep land excluded and review the estimate in your browser.
🔒 This tool runs entirely in your browser. Your files are never uploaded to a server.
Annual depreciation
$10,000
Monthly depreciation
$833.33
Example shown using the 27.5-year residential rental schedule — replace it with your own property numbers.
How it works
- Enter the building's value, excluding land.
- Enter its useful life in years.
- See the annual and monthly depreciation amount.
Calculation divides the building value evenly by its useful life — straight-line depreciation, the standard method for residential rental property, spreading the same deduction across every year of the schedule.
FAQ
Is my property data uploaded anywhere?
No. The calculation happens entirely in your browser — nothing is sent to a server.
What building value should I use?
The building value only, excluding the land — land isn't depreciable, so separating the two matters for an accurate figure.
Why 27.5 years by default?
That's the standard useful life the US IRS assigns to residential rental property under straight-line depreciation; commercial property typically uses 39 years instead.
Is this tax advice?
No — this is a general estimate using straight-line depreciation. Consult a tax professional for your specific filing situation.
How we compare
| Feature | Online Tool Store | Manual spreadsheet formula | Tax preparation software |
|---|---|---|---|
| Quick estimate before filing season | ✓ | Easy to mistype the divisor | Requires starting a full return |
| Free, no account | ✓ | ✓ | Often subscription-based |
Tax software requires starting a full return to see this figure. Rental Property Depreciation Calculator gives a quick estimate anytime during the year.