Depreciation is one of the most powerful tax advantages in real estate investing, and yet many new investors either overlook it or misunderstand how it works. The IRS lets you deduct the cost of your rental property over 27.5 years — even while the property may be appreciating in value. It is a "phantom expense" that reduces your taxable income without costing you a single extra dollar out of pocket.

What Is Rental Property Depreciation?

When you buy a rental property, the IRS considers the building (not the land) to be a wasting asset — it has a finite useful life. To account for this wear and tear, you are allowed to deduct a portion of the building's cost each year as an expense against your rental income. For residential rental property, the IRS sets the useful life at 27.5 years.

The key insight: you claim this deduction every year whether or not you actually spend money on repairs. It is purely a paper loss that reduces your tax bill. This is why real estate investors often pay far less in taxes than their rental income would suggest.

The Depreciation Formula

Annual Depreciation = (Purchase Price + Closing Costs) × Building % / 27.5

The formula is straightforward, but the building percentage is what trips people up. You can only depreciate the building — not the land underneath it. So you need to determine how much of your purchase price is attributable to the structure versus the lot.

Depreciation Calculation — Worked Example

Purchase Price $350,000
Closing Costs (added to basis) $0
Building Allocation (80%) $280,000
Useful Life 27.5 years
Annual Depreciation Deduction $10,182/year

That is $10,182 of rental income you do not pay taxes on each year. Over the full 27.5-year schedule, you will have deducted the entire $280,000 building cost.

Land vs Building Split

The IRS does not tell you exactly how to split land and building. There are several accepted methods:

Typical splits vary by location: 80/20 (building/land) is common in suburban areas, 75/25 in urban markets where land is more valuable, and 85/15 in rural areas where land is cheap relative to structures.

How Depreciation Reduces Your Taxes

Here is where it gets interesting. Depreciation does not just reduce your income — it can turn a profitable rental into a tax loss on paper.

Tax Impact — Worked Example

Rental NOI (Net Operating Income) $15,000/year
Less: Depreciation Deduction -$10,182/year
Taxable Rental Income $4,818
Tax Bracket 24%
Annual Tax Savings from Depreciation $2,444/year
Tax Savings Over 10 Years $24,440

Without depreciation, you would pay 24% on the full $15,000 of net operating income — that is $3,600 in taxes. With depreciation, you only pay tax on $4,818, saving you $2,444 every single year. Over a decade of ownership, that is almost $25,000 back in your pocket.

The Catch: Depreciation Recapture

Important: Depreciation is not a free lunch. When you sell the property, the IRS "recaptures" the depreciation you claimed and taxes it at a special rate of 25%. This is on top of any capital gains tax you owe on the sale.

Continuing our example: if you sell after 10 years and claimed $101,820 in total depreciation ($10,182 × 10), you will owe $25,455 in depreciation recapture tax at the time of sale. This is separate from the capital gains tax on any price appreciation.

This is why understanding recapture matters before you buy — not when you are getting ready to sell. Our rental property calculator shows the full recapture impact in the Sale Analysis panel so there are no surprises.

1031 Exchange: Deferring the Tax Bill

There is a way to defer both capital gains tax and depreciation recapture: the 1031 like-kind exchange. By selling your property and rolling the proceeds into another investment property of equal or greater value within specific timeframes, you can defer the entire tax bill indefinitely.

Many investors use 1031 exchanges to trade up into larger properties over the course of their careers, deferring taxes for decades. The depreciation clock resets on the new property, and the deferred recapture carries forward. It is one of the most effective wealth-building strategies in real estate.

Key takeaway: Depreciation is a powerful tool that reduces your taxes every year you own the property. Just make sure you factor in the recapture cost when modeling your exit strategy. The best investors plan for both sides of the equation from day one.

Understanding depreciation is closely related to knowing your cap rate and debt service coverage ratio — together, these metrics give you a complete picture of a deal's financial performance.

Calculate your depreciation deduction and see the full tax impact with our free calculator. Try it yourself →