Real estate depreciation: the tax benefit most investors miss
Key takeaways
04 · ideas- IRS allows depreciation of rental structures over 27.5 years
- A $300,000 rental property (70% structure) generates $7,636/year in paper deductions
- Cost segregation can accelerate 25-40% of depreciation to years 1-5
- Depreciation recapture tax at 25% applies on sale — but can be deferred via 1031 exchange
Basic level
The essentials · 1 min
When you own a rental property, the IRS allows you to deduct a portion of the building's value each year as "depreciation" — even while the property may be appreciating in real value. This is purely a tax accounting concept.
The rule: Residential rental buildings depreciate over 27.5 years using straight-line depreciation. Only the building (not land) can be depreciated.
Example: You buy a $400,000 rental house. Land value = $100,000, building = $300,000.
Annual depreciation deduction: $300,000 ÷ 27.5 = $10,909/year
If you're in the 24% tax bracket, this deduction saves you: $10,909 × 24% = $2,618 per year in taxes
Over 10 years: $26,180 in tax savings — real money, from a paper deduction.
Intermediate level
How it applies · 2 min
How depreciation interacts with rental income
Year 1 rental P&L example:
| Item | Amount |
|---|---|
| Gross rent | $24,000 |
| − Mortgage interest | −$15,000 |
| − Property taxes | −$4,800 |
| − Insurance | −$1,200 |
| − Repairs | −$1,500 |
| − Management | −$2,400 |
| **Cash flow** | **−$900** |
| − Depreciation | −$10,909 |
| **Taxable loss** | **−$11,809** |
The property generates a paper loss of $11,809 — which can offset other income (subject to passive activity rules).
Passive activity loss rules: Rental losses can offset other passive income freely. For active participation (most individual landlords), up to $25,000 of rental losses can offset active income if MAGI is below $100,000, phasing out at $150,000.
Cost segregation: accelerating depreciation
IRS allows shorter depreciation lives for components that aren't "structural":- Personal property (appliances, carpeting): 5 years
- Land improvements (parking, landscaping): 15 years
- Building shell: 39 years (commercial) or 27.5 (residential)
A cost segregation study classifies property components into faster-depreciation categories. For a $1M commercial property, this can move 20–30% of the value into 5-15 year categories, dramatically front-loading deductions.
Cost segregation ROI: Study cost $5,000–$15,000. Value for a $1M property in year 1: often $30,000–$60,000 in additional deductions = $10,000–$20,000 in tax savings in year 1 alone. ROI: 200–400% in the first year.
Advanced level
The math, step by step · 1 min
The depreciation recapture trap
When you sell a depreciated property, the IRS "recaptures" the depreciation benefit. All depreciation taken is taxed at 25% (the "unrecaptured Section 1250 gain" rate), regardless of your ordinary income bracket.
Example:- Purchased: $400,000 ($300,000 building)
- Sold 10 years later for: $600,000
- Depreciation taken: $10,909 × 10 = $109,090
- Adjusted basis: $400,000 − $109,090 = $290,910
- Capital gain: $600,000 − $290,910 = $309,090
- Depreciation recapture ($109,090 × 25%): $27,273
- Long-term capital gain on appreciation ($200,000 × 15/20%): $30,000–$40,000
- Total tax: $57,273–$67,273
The 1031 exchange: Section 1031 allows deferring ALL capital gains and depreciation recapture by exchanging into a "like-kind" property. The deferred taxes become embedded in the new property's basis. This can be done repeatedly, potentially deferring depreciation recapture indefinitely — and erasing it entirely at death via stepped-up basis.
At 7% discount rate, $27,000 in deferred recapture tax over 20 years has a present value of $6,976 — you've effectively cut the tax cost by 74%.