Balconies on a modern multi-family apartment building

Glossary · Gain rules

Realized Gain vs Recognized Gain

Realized gain is the economic gain on a sale or exchange; recognized gain is the part taxed this year. In a 1031 exchange it is capped at the boot received.

By Breakwater Exchange · Reviewed by our 1031 advisory team · Last reviewed

The short answer

Realized gain is the economic gain on a disposition, the amount realized minus your adjusted basis, and recognized gain is the part of it you must report as taxable this year. Section 1001(c) says realized gain is recognized unless the Code provides otherwise, and section 1031 is one of those exceptions. In an exchange, gain is recognized only up to the cash and other boot you receive; the rest is deferred.

At a glance

Realized gainAmount realized minus adjusted basis
Recognized gainThe part of realized gain reported as income this year
In an exchangeRecognized up to boot received, never more than gain realized
Form 8824Line 19 realized, line 23 recognized, line 24 deferred

Both terms come from section 1001, and section 1031 is the exception that pulls them apart.

Section 1001(a) defines gain as the excess of the amount realized over the adjusted basis. Section 1001(c) then says the entire gain is recognized, "except as otherwise provided in this subtitle."

Section 1031(a)(1) is one of those provisions: no gain or loss is recognized when real property held for productive use in a trade or business or for investment is exchanged solely for like-kind real property held the same way. Section 1031(b) recognizes gain when you also receive money or other property, but only up to their total.

Publication 544 states the distinction plainly: realized gain is usually recognized, recognized gains must be included in gross income, and gain realized in certain exchanges is not recognized.

Exchanges are not the only gap between the two figures. Any Code provision that defers or excludes gain creates one, but in a section 1031 exchange the gap is measured by what you received that was not like-kind real property.

In a hypothetical exchange, the two numbers can differ by hundreds of thousands of dollars.

This follows the method in Publication 544, scaled up. Hypothetically, you exchange investment real estate worth $1,100,000, with an adjusted basis of $800,000, for real estate worth $1,000,000 plus $100,000 in cash, and you pay $50,000 of exchange expenses. Your amount realized is $1,050,000 and your realized gain is $250,000.

Your recognized gain is only $50,000: the $100,000 of cash less the $50,000 of exchange expenses. The remaining $200,000 is deferred and carried into the replacement, whose basis becomes $800,000, its $1,000,000 value less the $200,000 deferred gain. Run your own numbers with your CPA.

On Form 8824, that exchange shows $50,000 on line 15 after the expenses are netted, $1,000,000 on line 16, and $250,000 of realized gain on line 19. Line 20 takes the smaller figure, $50,000, and line 24 shows the $200,000 deferred.

It bites when boot is larger than expected, and again when the deferral ends.

Recognized gain can never exceed realized gain. A property exchanged near its basis with a lot of boot produces only a small recognized gain, and a property exchanged at a loss produces no recognized loss, because section 1031(a) and 1031(c) both bar it.

The deferred part is taxed when you later sell the replacement in a taxable sale, which is why an exchange defers rather than forgives tax; see whether a 1031 is tax-free or tax-deferred and the tax when you finally sell. The amount realized entry explains the starting figure.

Character follows the property, not the label. Recognized gain on business real estate is reported on Form 4797 and may include depreciation recapture, while gain on a capital asset goes to Schedule D; the Form 8824 instructions route it through lines 21 and 22. See boot taxed as recapture or capital gain first.

Related questions

Which number goes where on Form 8824?

Line 19 shows the gain realized and line 20 the smaller of boot or realized gain. Line 23 totals the recognized gain after recapture, and line 24 shows the deferred gain.

Can recapture make the recognized gain larger than the boot?

Yes in some cases. The Form 8824 instructions show section 1245 recapture on line 21 exceeding the line 20 gain when personal-property components are given up and not replaced in kind, so have your CPA run line 21 before closing.

Can I recognize a loss in an exchange?

No. Section 1031(a) bars recognizing a loss on a qualifying exchange, and section 1031(c) bars it when you also receive boot. Non-like-kind property you give up is treated separately, and gain or loss on it is recognized.

Sources

Checked against these publications on September 30, 2026. Rules and figures change; confirm the current version with your CPA or attorney before you act. This page is general information, not tax or legal advice.

  1. 26 U.S. Code section 1001, Determination of amount of and recognition of gain or loss
  2. 26 U.S. Code section 1031, Exchange of real property held for productive use or investment
  3. IRS, Publication 544 (2025), Sales and Other Dispositions of Assets
  4. IRS, Instructions for Form 8824 (2025)

Want this mapped onto your own sale?

Tell us what you are selling and when it closes. A Breakwater Exchange advisor will lay out the replacement options, including DSTs that can close inside your deadlines, in a free proposal.

Free 1031 proposal

Access Investment Offerings Other Brokers Can’t Provide

Breakwater Exchange’s expert guidance helps you maximize returns while minimizing tax exposure, so you can invest with clarity and confidence.

years of experience
20+
in DST transactions
$1B+
states licensed
50
vetted national sponsors
8

Tell us about your exchange

Share the basics and an advisor will reach out with next steps.

Are you an accredited investor?

Generally, net worth over $1 million excluding your primary residence, or income over $200,000 ($300,000 with a spouse) in each of the last two years.

No obligation. A Breakwater Exchange advisor reviews every request personally.

Get My Free ProposalFree ProposalBook a Free ConsultationFree Consultation