Partial 1031 Exchange: Take Some Cash and Still Defer Taxes

What Is a Partial 1031 Exchange?

A partial 1031 exchange is when you sell an investment property but don't reinvest all of the proceeds. You take some cash out, and the rest goes into a qualified replacement property. Here's the crucial part: you can still defer taxes on the portion you reinvest. The cash you pocket is taxable income in the year of the exchange, but it's not "lost" to the exchange rules. It's just treated as taxable boot.

This is fundamentally different from simply cashing out. If you sell an investment property and don't do any exchange at all, you pay full capital gains tax on the entire sale price. In a partial exchange, you pay tax only on the boot (the cash you take), and the rest is deferred.

The Math: A Real Example

Let's walk through a concrete scenario so you see exactly how this works.

You own a commercial building you purchased for $300,000 fifteen years ago. Today it's worth $600,000. You've had strong cash flow and you've paid down the mortgage to $200,000. Your equity is $400,000.

You decide to sell. The sale closes, and after paying off the loan and closing costs, you have $380,000 in proceeds.

Now here's where the partial exchange happens. You don't want to reinvest all $380,000. Maybe you need to cover some personal expenses. Maybe you want to simplify your portfolio. You decide to reinvest $300,000 in a new multi-unit residential property and take $80,000 in cash.

From a tax perspective:

• Your original basis: $300,000
• Your sale price: $600,000
• Gain on the sale: $300,000
• Amount you're reinvesting: $300,000
• Amount you're taking as boot: $80,000

In a full exchange, you'd defer the entire $300,000 gain. In this partial exchange, how much tax do you owe?

Here's where it gets important: the IRS treats boot as the first money you receive. So of your $300,000 gain, $80,000 is attributable to the boot you're taking. You'll owe capital gains tax on that $80,000. The remaining $220,000 of gain is deferred because you reinvested at least $300,000.

If your long-term capital gains rate is 15%, that's roughly $12,000 in tax on the boot. You've deferred $220,000 of gain, which could be $33,000 in taxes saved. Not a bad trade-off if you need the liquidity.

The Boot Rule and How It Works

"Boot" in 1031 exchange language means any property or cash you receive that's not like-kind property. When you take cash in an exchange, that's boot. When you receive other property (non-real estate), that's boot too.

The rule is simple: you pay tax on the boot you receive. But this doesn't mean you lose the exchange entirely. You're just narrowing the scope of what's deferred.

Here's a practical point many investors miss: the amount of boot isn't always obvious. Let's say in the example above, you sold for $600,000 and your mortgage balance was $200,000. The gross proceeds to you might be $400,000. But here's the subtlety: if the buyer assumes your $200,000 debt, the IRS might count that debt relief as boot you receive.

This is where things get tricky. If you're trading down in value or refinancing, you need to carefully document what debt is being paid off and what's being assumed.

Common Mistake: Accidental Boot Through Debt Reduction

One mistake that trips up investors happens when debt isn't handled the same way on both sides of the exchange.

Let's say you sell property worth $500,000 with a $150,000 loan. Your equity is $350,000.

You plan to buy replacement property for $350,000 with no debt.

From the IRS perspective, you've "taken boot" in the form of debt relief. You received $150,000 of debt relief (the loan is paid off), and you didn't replace it with new debt. This $150,000 is taxable boot.

To avoid this, you need to either:

1. Buy replacement property worth more than your equity (so you take on debt yourself), or
2. Understand and accept that you're taking boot and plan for the tax consequence, or
3. Structure the purchase so debt levels are equivalent.

The lesson: sit down with your QI (qualified intermediary) and your CPA before you do anything. Don't let debt surprises hit you at closing.

When a Partial Exchange Makes Sense

There are legitimate, smart reasons to take some boot:

You need liquidity. Maybe you have a kid starting college, or you're doing a major renovation on your primary residence. A partial exchange lets you pull out cash strategically instead of cashing out the whole property.

You're consolidating properties. If you're selling two smaller properties and buying one large one, taking some cash between sales can ease cash flow during the transition.

You want to test a new market. Maybe you're selling in an overheated market and want to move some capital to a different region. Taking some cash lets you invest a smaller amount in the new market first, without putting all your eggs in one basket immediately.

You're simplifying. Some investors have 5-10 small properties and want to move to 2-3 larger ones. Taking some cash during that transition makes sense.

You've hit your investment target. Maybe you set out to build a $2 million real estate portfolio, and you've hit that number. You could do partial exchanges on your remaining smaller properties to pull out capital for other uses.

Identification and Closing Rules Still Apply

Here's what doesn't change in a partial exchange: you still have to follow all the structural rules.

You still need a qualified intermediary. You can't take possession of the sale proceeds yourself. Your QI needs to hold the money from day one of the sale until it's either deployed to the replacement property or returned to you as boot (in which case you pay tax on it).

You still have 45 days to identify your replacement property in writing. A partial exchange doesn't give you more flexibility here. Some investors think they can be slower because they're taking some cash, but that's not how it works.

You still have 180 days to close on the replacement property. The clock starts the same day as your sale closing.

If you're identifying multiple replacement properties because you're splitting your proceeds among a few purchases, you still follow the 3-property rule, the 200% rule, or the 95% rule. Those identification rules are explained in detail in our article on identification rules.

How to Structure a Partial Exchange

Here's the basic workflow:

Step 1: Plan before the sale. Know in advance how much you want to take as boot. Work with your CPA to understand the tax impact. Know the reinvestment amount.

Step 2: Get your QI in place. Tell your QI upfront that this is a partial exchange. Provide the boot amount and the reinvestment target.

Step 3: Close the sale. After closing, your QI receives the proceeds. Your QI does not release any boot to you yet.

Step 4: Identify the replacement property. Within 45 days, identify the property you're buying and the amount you're reinvesting.

Step 5: Close on the replacement property. Within 180 days, close on the replacement property. Your QI deploys the reinvestment amount.

Step 6: Boot is released. After the replacement property closes, your QI releases the boot amount to you (minus any fees). You'll receive a 1099 at tax time for the boot.

Real-World Variations

Variation 1: Multiple sales, multiple buys. If you're selling two properties ($400,000 + $350,000) and buying one property ($600,000), with the remainder as boot ($150,000), each sale starts its own 45/180-day clock. Your QI manages both clocks. This is more complex, but very doable.

Variation 2: Staggered buys. If you're buying one property for $300,000 in month one and another for $200,000 in month four (from the same sale), your first purchase closes within 180 days of the sale. Your second purchase also closes within 180 days of the sale. The $100,000 not deployed would be boot at that point.

Variation 3: Boot taken gradually. Technically, you could take some boot as cash at closing and reinvest the rest, then reinvest that cash later. But this is messy and creates complications. Better to lock down your reinvestment amount upfront.

Tax Planning Around Boot

Here's a planning consideration: taking boot in a lower-income year vs. a higher-income year can affect your overall tax bill.

If you're in your first year of retirement and your income is lower, taking $100,000 in boot might result in tax at 15% long-term capital gains rates. If you're in a high-income year, it might be taxed at 20%. So timing can matter.

Also, remember that net investment income tax (3.8% for high earners) might apply. If your modified adjusted gross income exceeds thresholds, the 3.8% NIIT kicks in on your net investment income, which includes capital gains. This can effectively raise your rate to 18.8% to 23.8% depending on your bracket.

This isn't a reason to avoid a partial exchange. It's just a reason to coordinate with your CPA on the best year to execute it.

The Bottom Line

Partial 1031 exchanges are a legitimate, tax-efficient tool when you have a specific need for cash but also want to defer taxes on the reinvested portion. The math is straightforward: boot is taxable, reinvestment is deferred, and you still follow all exchange rules.

The most important step is planning. Know your boot amount upfront. Tell your QI and CPA. Follow the rules. And you'll get the best of both worlds: some liquidity now, and tax deferral on the reinvested amount.

Ready to run the numbers on your own situation? Try the 1031 tax savings calculator. Or if you want to talk through whether a partial exchange makes sense for your goals, connect with a qualified advisor who can map out the full picture.