The Complete Guide to 1031 Exchanges for Multifamily Investors

You just sold your Houston fourplex for $600K — bought it for $380K four years ago. After closing costs, you're looking at roughly $180K in capital gains. At federal + Texas effective rates, that's a $40K-$50K tax bill.

Or you could pay $0 in taxes and roll every dollar into a bigger property.

That's what a 1031 exchange does. For multifamily investors building a portfolio, it's the single most powerful wealth-building tool in the tax code.

How a 1031 Exchange Works

Section 1031 of the Internal Revenue Code allows you to defer capital gains taxes when you sell an investment property and reinvest the proceeds into a "like-kind" property. The key word is defer — you're postponing the tax until you eventually sell without exchanging.

In practice, many investors exchange repeatedly — scaling from a fourplex to a 12-unit to a 30-unit — and never pay capital gains during their investing career. For many Houston investors, a 1031 exchange is the natural next step after house hacking their first property. At death, heirs receive a stepped-up basis, effectively eliminating the deferred gains entirely.

The Rules You Must Follow

Like-Kind Requirement

"Like-kind" is broader than you'd think:

Fourplex → apartment complex — yes
Single-family rental → commercial building — yes
Houston property → Austin property — yes
Investment property → primary residence — no

The Two Critical Deadlines

Deadline	Days	What Happens
Identification Period	45 days	Must identify replacement properties in writing to your QI
Exchange Period	180 days	Must close on the replacement property

Warning: These deadlines are strict. No extensions. No exceptions. Miss either one and the exchange fails — you owe taxes on the full gain.

Identification Rules

Rule	Limit	When to Use
Three-Property Rule	Up to 3 properties of any value	Most common — pick 2-3 candidates
200% Rule	Any number, total value ≤ 200% of sale price	When you want more options
95% Rule	Any number, must acquire 95% of total	Rarely used — too restrictive

Equal or Greater Value

To fully defer taxes, the replacement must be:

Equal or greater in price than the property you sold
Equal or greater in debt (or make up the difference with cash)

Pro tip: If you buy for less, the difference is called "boot" and is taxable. Sell for $600K, buy for $500K — the $100K gap is taxable boot.

Step-by-Step Process

1. Hire a Qualified Intermediary (Before You Sell)

A QI holds the sale proceeds in escrow. You cannot touch the money. If funds hit your bank account even briefly, the exchange is disqualified. Cost: $750-$1,500.

2. Sell the Relinquished Property (Day 0)

Close on your sale. Proceeds go directly to the QI.

3. Identify Replacement Properties (Day 1-45)

Start looking immediately. 45 days goes fast. Use properlocating's screener to filter properties by price range, cap rate, and submarket. Having a clear underwriting framework lets you evaluate replacement candidates quickly under deadline pressure.

4. Close on Replacement Property (Day 1-180)

Under contract, inspect, finance, close. The QI sends exchange funds directly to the closing agent.

5. File Tax Returns

Report the exchange on Form 8824 with your tax return.

Advanced Strategies

Reverse Exchange

Find the replacement property before selling your current one. You acquire the replacement first, then sell within 180 days. More expensive ($5K-$15K in QI and holding costs) but eliminates the 45-day pressure.

Exchange into Multiple Properties

One property into two or more replacements — common for diversification:

Example: Sell 1 property for $1.5M → Buy 2 properties for $800K each ($1.6M total). Fully deferred.

DST as a Fail-Safe

Delaware Statutory Trusts (DSTs) are fractional interests in institutional properties that qualify as 1031 replacements. If you can't find a suitable property in 45 days, a DST can "park" your exchange until you find the right deal.

When NOT to 1031 Exchange

When you need liquidity. Proceeds are locked in the exchange.
When gains are small. The complexity isn't worth it under ~$75K in gains.
When you want to exit real estate. You can't 1031 into stocks or a business.
When better opportunities exist. Sometimes paying 20% tax and having 80% with full flexibility beats 100% locked into a rushed purchase.

Common Mistakes

Starting the search after closing. The 45-day clock starts at closing, not when you list. Search while your sale is pending.
Using the wrong intermediary. Your QI holds hundreds of thousands of dollars. Use an established, insured company — a good CPA on your investment team can recommend one.
Touching the proceeds. If exchange funds flow through your bank account — even for a day — exchange disqualified.
Forgetting about debt boot. If replacement has a smaller mortgage, the debt reduction is taxable.
Not filing Form 8824. The exchange isn't complete until reported on your tax return.