Rental Property Depreciation: The Tax Benefit Most Landlords Miss

What is rental property depreciation?

Depreciation is a tax deduction that lets you write off the cost of your rental property over time — even though the property may actually be increasing in value. It's a paper loss that reduces your taxable rental income without costing you any actual cash.

The IRS considers rental buildings to be assets that wear out over time (even when they don't). They allow you to deduct a portion of the building's cost each year for 27.5 years. This is one of the biggest tax advantages of owning rental real estate.

How the math works

When you buy a rental property, you need to separate the land value from the building value. Only the building can be depreciated — land doesn't wear out.

A common method is to use your county tax assessment, which typically breaks down the assessed value into land and improvements. If the assessment shows 20% land and 80% improvements, apply those percentages to your purchase price.

Example: You buy a rental property for $300,000. Tax records show 80% building value.

Building value: $300,000 x 80% = $240,000. Annual depreciation: $240,000 / 27.5 = $8,727 per year.

That's $8,727 you can deduct from your rental income every year for 27.5 years. If your rental generates $18,000 in net income before depreciation, your taxable income drops to $9,273. At a 24% tax bracket, that saves you about $2,094 in taxes annually.

When depreciation starts

Depreciation begins when the property is "placed in service" — meaning it's available for rent. This doesn't require that you have a tenant. It starts the day the property is ready and available, even if it takes a few weeks to find a tenant.

You cannot depreciate a property you live in. It must be a rental, investment, or business property. If you convert your primary residence to a rental, depreciation starts on the conversion date using the lower of your cost basis or the fair market value at conversion.

Improvements vs repairs

Major improvements to your rental property must be depreciated separately. A new roof, HVAC system, or kitchen renovation is an improvement — it extends the life of the property or adds value. These are depreciated over their own recovery period (often 5, 7, 15, or 27.5 years depending on the asset class).

Repairs, on the other hand, are fully deductible in the year they're made. Fixing a broken window, patching drywall, or replacing a faucet are repairs. The distinction matters significantly for your tax bill.

Cost segregation — the advanced play

Cost segregation is a strategy where you hire a specialist to break your property into components that can be depreciated faster. Instead of depreciating the entire building over 27.5 years, specific items are reclassified:

• Appliances, carpeting, cabinets: 5-year property
• Fencing, landscaping, parking lots: 15-year property
• Land improvements: 15-year property

This front-loads your deductions, creating larger tax savings in the early years of ownership. Cost segregation studies typically cost $5,000-15,000 and make the most sense for properties worth $500,000+. Consult with a CPA who specializes in real estate to determine if it's worthwhile for your situation.

Depreciation recapture — the catch

When you sell a rental property, the IRS "recaptures" the depreciation you've claimed and taxes it at 25% (regardless of your ordinary income tax bracket). This means depreciation isn't a permanent tax elimination — it's a deferral.

However, this is generally still beneficial. You're getting the tax savings now (when you need cash flow) and paying the recapture later (when you have sale proceeds). Many investors use 1031 exchanges to defer both capital gains and depreciation recapture by rolling proceeds into a new investment property.

Track it with your other deductions

Depreciation is reported on Schedule E of your tax return alongside all your other rental income and expenses. Keeping accurate records of your purchase price, improvements, and the land/building allocation is essential.

RentalSlate helps landlords track all rental income and expenses with automatic Schedule E categorization — so your records are organized year-round, not just at tax time.