How to Use This Tool
Enter your rental property details in the input fields above. Select the property type to set the correct IRS recovery period: 27.5 years for residential rentals, 39 years for commercial rentals. Input the total purchase price, then subtract the land value (land is not depreciable). Add any depreciable closing costs (like legal fees or title insurance) and capital improvements made to the property. Select the month you placed the property in service for accurate first-year proration. Enter the number of years you want to project depreciation for, then click Calculate.
Formula and Logic
This calculator uses IRS MACRS (Modified Accelerated Cost Recovery System) rules for rental real estate:
- Cost Basis = Purchase Price + Depreciable Closing Costs + Capital Improvements - Land Value
- Annual Depreciation = Cost Basis / Recovery Period (27.5 years for residential, 39 for commercial)
- First Year Depreciation uses the mid-month convention: (12.5 - Placement Month) / 12 * Annual Depreciation
- Total Depreciation over X years sums first year prorated depreciation plus full annual depreciation for subsequent years, stopping when the recovery period ends
Practical Notes
Keep these finance-specific considerations in mind when using your results:
- Depreciation is a non-cash deduction that reduces your taxable rental income, but you will owe depreciation recapture tax (at 25% maximum rate) when you sell the property
- Only the building and improvements are depreciable: land value must always be excluded from your cost basis
- Some closing costs (like mortgage points or appraisal fees) are not depreciable and should not be included in the closing costs field
- If you make major improvements mid-year, you may need to calculate separate depreciation for the improvement using its own placement month
- Always consult a tax professional to confirm your depreciation deductions match IRS requirements
Why This Tool Is Useful
Landlords and real estate investors use this calculator to plan tax deductions, track property basis adjustments, and estimate taxable income from rental properties. It eliminates manual math errors, accounts for first-year proration, and projects depreciation over multiple years to support long-term financial planning. Tax preparers can also use it to quickly verify client depreciation calculations.
Frequently Asked Questions
Can I depreciate a rental property I use part-time for personal use?
You can only depreciate the portion of the property used for rental purposes. Multiply your cost basis by the percentage of the property rented out, then use that adjusted basis in the calculator.
What happens if I sell the rental property before the recovery period ends?
You can depreciate the property up to the month you sell it. You will also owe depreciation recapture tax on all depreciation claimed up to that point, which is taxed at a maximum rate of 25% rather than ordinary income rates.
Do I have to take depreciation on my rental property?
The IRS requires you to take depreciation even if you don't claim it on your tax return. Unclaimed depreciation will still be subject to recapture tax when you sell, so it is almost always beneficial to claim the full allowable depreciation each year.
Additional Guidance
Retain all records related to your rental property's purchase, closing costs, and improvements for at least 3 years after you file the tax return claiming the depreciation. If you convert a personal residence to a rental, your cost basis for depreciation is the lower of the property's fair market value or your adjusted basis on the conversion date. For commercial properties, some improvements may qualify for bonus depreciation or shorter recovery periods, which this calculator does not account for. Always cross-check results with IRS Publication 527 (Residential Rental Property) or Publication 535 (Business Expenses) for the most up-to-date rules.