When you sell a rental that has gone up in value, the tax bill is often bigger than owners expect — because it isn't one tax, it's up to four stacked on top of each other. Here's what makes it up, plainly, so you can see the whole picture before you sell. None of this is tax advice — the numbers depend entirely on your situation, and your CPA should run the real figures.
It starts with your gain
Everything is calculated on your gain, not your sale price: the sale price minus your adjusted cost basis (roughly what you paid, plus improvements, minus the depreciation you've claimed). On a property held for decades, that gain can be most of the sale price.
The four pieces of the bill
- Federal capital gains tax. If you held the property more than a year, the gain is taxed at long-term rates (lower than ordinary income); a year or less, it's taxed as ordinary income. The holding period matters a lot.
- Depreciation recapture. The depreciation you deducted over the years gets “recaptured” at sale — taxed at a rate up to 25%. This is the piece that surprises people, because it applies even if the property barely appreciated.
- Net investment income tax (NIIT). An extra 3.8% can apply to investment gains above certain income thresholds.
- State income tax. Your state may tax the gain too — anywhere from 0% to north of 13%, depending on where you live.
Add those together and the combined bite can reach well into the double digits as a share of your gain. That total is exactly what owners are reacting to when they say selling “triggers a tax bomb.”
Estimate yours in about a minute
The fastest way to see the order of magnitude for your sale is to run the numbers. Our capital gains estimator walks you through federal, recapture, NIIT, and state in clear terms and shows roughly what you'd owe — and what you'd keep. It's an educational estimate, not tax advice, but it's a useful gut-check before you talk to your CPA.
Where a 1031 exchange fits
If the bill gives you pause, a 1031 exchange lets eligible investors defer — not eliminate — capital gains and depreciation-recapture tax by reinvesting the proceeds into other like-kind investment real estate within strict IRS deadlines. One replacement option is a Delaware Statutory Trust (DST), which lets you stay invested passively. DSTs are securities, available only to accredited investors, and they're illiquid, fee-bearing, and carry risk including loss of principal — they aren't right for everyone.
The honest caveats
- It's an estimate. Brackets, exclusions, AMT, and the full shape of your return all move the real number — only your CPA can compute it.
- Defer is not eliminate. A 1031 pushes the tax down the road; whether and when it comes due depends on your future decisions.
- Plan before you sell. A 1031 has to be set up before the sale closes — once you've taken the proceeds, the door is shut.
Next: estimate your tax, read how a 1031 exchange works, or see your options when it's time to sell.