Most 1031 writing, including plenty of ours, treats boot as the enemy: the cash you accidentally leave on the table that turns a clean deferral into a tax bill. That is the right instinct when boot is a mistake. But boot is not always an accident. Sometimes taking cash out of an exchange, on purpose, is the smartest thing an owner can do. It is called a partial exchange, and the code permits it by design. You do not have to reinvest every dollar. You can roll most of your proceeds forward, keep a slice as cash, and pay tax on only that slice.
The question is never whether you can. It is whether you should.
How a partial exchange actually works
A full 1031 defers all of your gain because you reinvest all of your equity and replace all of your debt. A partial exchange simply relaxes that. You reinvest most of the proceeds into replacement property and instruct your intermediary to release the rest to you. The portion you keep, whether cash or debt relief you did not replace, is boot, and boot is taxable. The portion you reinvest continues to defer.
The critical point people miss: taking a little boot does not blow up the whole exchange. You do not lose deferral on everything just because you kept some cash. You are taxed only on the boot, up to the amount of your gain, and the rest rides forward tax-deferred. It is a dial, not a switch.
A worked example
Say you sell a building for $1,000,000, own it free and clear, and have a $400,000 gain. You find a replacement you like for $850,000 and decide to keep $150,000 in cash for other plans.
- You reinvest $850,000 and defer the gain attributable to it.
- You keep $150,000, which is boot, and pay tax on that $150,000 of gain now.
- The remaining $250,000 of gain stays deferred inside the replacement property.
You walk away with cash in hand and still shelter the majority of your gain. One caution worth stating plainly: boot is generally taxed as gain, and if you claimed depreciation, part of it can be depreciation recapture taxed at a higher rate. Your CPA determines exactly how your boot is characterized, because the mix of capital gain and recapture changes the bill.
When a partial exchange is genuinely the right move
Deliberate boot earns its place in a few real situations:
- You simply need the cash. For a renovation, a personal goal, paying down other debt, or funding a different opportunity. Deferring tax is not worth it if it starves you of liquidity you actually need.
- This is a low-income year. If your other income is down, recognizing some gain now, at a lower marginal rate, can be cheaper than deferring it into a future you expect to be higher-taxed.
- You have suspended passive losses. Recognizing boot is a disposition event that can free up prior years' suspended passive losses to offset the very gain you are recognizing, sometimes wiping out much of the tax on the cash you took.
- The replacement is simply smaller. In a tight market, or when you are intentionally trading down, you may not want to reinvest the full amount. A partial exchange lets you right-size rather than overpay to avoid tax.
The alternative: full exchange, then refinance
Before you take boot, weigh the other route to liquidity. You can complete a full 1031, deferring everything, and then refinance the replacement property afterward to pull cash out, because loan proceeds are not taxable income. That gets you cash without recognizing gain. The trade is that you take on debt and its payments, and the strategy has its own timing and cost considerations. For an owner who wants liquidity and can service a loan, refinancing often beats paying tax on boot. For one who wants cash free of new debt, or who has losses to absorb the gain, a partial exchange can be the cleaner answer. Which one wins is a numbers question we work through before you commit, and you can rough it out first with our calculator.
The bottom line
A partial exchange is not a failed exchange. It is a deliberate choice to defer most of your gain while keeping the liquidity you need, accepting a known, limited tax on the cash you take. Used with intent, it is one of the more practical tools in the 1031 toolkit. The mistake is stumbling into boot without meaning to; the strategy is deciding, in advance and with your CPA, exactly how much cash to take and what it will cost. That planning is part of our exchange process.
Frequently asked questions about partial 1031 exchanges
Can I keep some of the cash from a 1031 exchange?
Yes. In a partial exchange you reinvest most of the proceeds and keep the rest as cash. The cash you keep is boot and is taxable, but the reinvested portion continues to defer.
Does taking boot cancel the whole exchange?
No. Taking boot does not disqualify the exchange. You are taxed only on the boot, up to the amount of your gain, and the remaining reinvested gain stays deferred.
How is the cash I keep taxed?
Generally as gain, and if you previously claimed depreciation, part of the boot may be taxed as depreciation recapture at a higher rate. Your CPA determines the exact mix of capital gain and recapture.
When does a partial exchange make sense?
When you need liquidity, when recognizing some gain in a low-income year is cheaper, when suspended passive losses can offset the boot, or when you are intentionally trading down and do not want to reinvest the full amount.
Is it better to take boot or refinance after the exchange?
It depends. Refinancing a fully exchanged property gives you cash without recognizing gain, but adds debt. Taking boot gives you cash without new debt, but is taxable. The right choice turns on your numbers and goals.