1031 Exchange Instructions: A Simple Step-by-Step Guide for Real Estate Investors

What a 1031 Exchange Actually Does

A 1031 exchange lets an investor sell one investment or business-use real estate property and buy another qualifying property without recognizing the full capital gain right away.

That does not mean the tax disappears forever.

It usually means the gain is deferred and carried into the replacement property until a later taxable sale, unless another deferral strategy applies.

In plain English:

• You sell qualifying investment real estate
• You do not take direct possession of the sale proceeds
• You buy qualifying replacement real estate within the IRS deadlines
• You defer some or all of the gain if the exchange is structured correctly

The 5 Core Rules to Understand First

Before you worry about paperwork, understand these five rules.

1. The property must be investment or business property

Common examples that may qualify:

• Rental condos
• Multifamily buildings
• Commercial property
• Land held for investment

Common examples that usually do not qualify:

• Your primary residence
• A flip held primarily for resale
• Property held mainly for personal use

2. The exchange must involve real property

For modern 1031 exchanges, the rule applies to real property, not personal property like vehicles, equipment, or artwork.

3. You must use a qualified intermediary

In a standard delayed exchange, you generally cannot sell the property, deposit the proceeds into your own account, and decide later to do a 1031.

The sale proceeds are usually held by a qualified intermediary (QI) under a written exchange agreement.

If you or your agent has control of the funds, the exchange can fail.

4. You must identify replacement property within 45 days

This is one of the strictest deadlines in the process.

Your identification must be:

• In writing
• Signed
• Delivered to the proper party involved in the exchange
• Clear enough to identify the property, usually by address or legal description

5. You must close within 180 days

You must receive the replacement property by the earlier of:

• 180 days after transferring the old property, or
• The due date of your tax return for that year, unless extended

That tax-return deadline catches many investors off guard.

Step-by-Step 1031 Exchange Instructions

Here is the process in the order most investors should think about it.

Step 1: Confirm the property is eligible before you list it

Before marketing the property for sale, confirm with your CPA and exchange professional that:

• The relinquished property is held for investment or business use
• The replacement property will also be held for investment or business use
• Your ownership structure is being handled correctly
• You understand whether any cash-out, mortgage change, or partial exchange may create taxable gain

This is the best time to spot issues with title, partnership interests, LLC structure, or mixed personal/investment use.

Step 2: Build your exchange team early

A smooth exchange usually involves:

• Your real estate agent
• A qualified intermediary
• Your CPA or tax advisor
• Your real estate attorney
• Your lender, if financing is involved

Do not wait until after closing to look for a QI. In most cases, the exchange documents need to be set up before the sale closes.

Step 3: Open the exchange with the qualified intermediary

Before the sale of your old property closes, the QI typically prepares:

• The exchange agreement
• Assignment documents
• Notice language for the closing
• Instructions for holding the sale proceeds

The key point is simple: when the relinquished property sells, the net proceeds should go into the exchange structure, not to you directly.

Step 4: Sell the relinquished property

Once the sale closes, your exchange clock starts.

That closing date is the anchor date for:

• The 45-day identification period
• The 180-day exchange period

From here on, every day matters.

Step 5: Identify replacement property in writing within 45 days

This is not the same as casually browsing listings or talking through options.

You need a proper written identification delivered on time.

Investors often use one of these identification approaches:

• Three-property rule: identify up to three properties regardless of value
• 200% rule: identify more than three properties as long as the total value does not exceed 200% of the value of what you sold
• 95% exception: if you identify more than the allowed amount, the exchange can still work only in limited situations if you acquire at least 95% of the value identified

For most investors, the simplest path is the three-property rule.

The 95% exception is the least forgiving of the three.

What it means in practice:

• If you identify too many properties and the total identified value is above the normal limit, you do not fix that by buying just one or two of them
• To stay compliant under the 95% exception, you generally need to acquire at least 95% of the total value of everything you identified

Simple example: why the 95% exception is hard to use

Assume you sold a property for $700,000 and identified 5 replacement properties:

• Property A: $400,000
• Property B: $350,000
• Property C: $300,000
• Property D: $250,000
• Property E: $200,000

Total identified value = $1,500,000

That is above 200% of the sold property's value:

• 200% of $700,000 = $1,400,000

So the identification does not fit the 200% rule.

At that point, the only remaining way to save the identification may be the 95% exception.

To qualify, you would generally need to acquire at least 95% of $1,500,000, which is:

• $1,425,000

That means buying almost everything you identified, not just your favorite one or two properties.

For example:

• If you only buy Property A and Property B for a total of $750,000, you are nowhere near the $1,425,000 threshold, so the 95% exception would usually not help you.
• If you buy Property A, B, C, and D for a total of $1,300,000, that is still below $1,425,000, so it still may fail.
• If you buy enough of the identified properties to reach at least $1,425,000, then you may be able to rely on the 95% exception.

That is why most investors try to stay within the three-property rule or the 200% rule instead of planning around the 95% exception.

Step 6: Go under agreement and complete due diligence quickly

After identification, move fast on:

• Offer negotiation
• Inspection or physical due diligence
• Lease review for income properties
• Environmental review where relevant
• Title review
• Financing approval

The 180-day period includes weekends and holidays. It is not a “business days” rule.

Step 7: Close on the replacement property within 180 days

To fully defer gain, investors usually aim to:

• Buy property of equal or greater value
• Reinvest all net exchange proceeds
• Replace any debt reduction with new financing or additional cash

If you receive cash back or reduce your overall reinvestment, you may create boot, which is generally taxable to the extent of gain.

Step 8: Report the exchange on your tax return

A 1031 exchange is not invisible just because tax is deferred.

You generally report it on IRS Form 8824 for the year of the exchange. Your CPA should also track the carryover basis and any recognized gain if the exchange was only partial.

A Clear Example With Real Dates

Let’s walk through a simple example.

Starting facts

Maria owns a rental condo in Massachusetts.

• Contract sale price: $700,000
• Mortgage payoff: $200,000
• Closing costs and selling expenses: $35,000
• Net proceeds going into the exchange: $465,000

Maria wants to defer tax and move into a larger investment property.

Her sale closes on June 1, 2026

That means:

• 45-day identification deadline: July 16, 2026
• 180-day exchange deadline: November 28, 2026

If Maria misses either date, the exchange likely fails.

What Maria identifies

By July 16, 2026, Maria gives her QI a signed written identification listing these three possible replacements:

1. A duplex in Framingham for $760,000
2. A triplex in Marlborough for $815,000
3. A mixed-use property in Waltham for $860,000

That works under the three-property rule.

What Maria actually buys

On October 30, 2026, Maria closes on the triplex for $815,000.

She uses:

• The full $465,000 of exchange proceeds
• A new loan for the remaining amount needed to close

Why this example is strong:

• She used a QI
• She identified replacement property on time
• She closed before November 28, 2026
• She bought a property worth more than the property she sold
• She reinvested all exchange proceeds instead of taking cash out

That gives her a strong chance of achieving full deferral, assuming the rest of her facts also qualify.

What would create a problem?

Two common problems are:

• Maria does not use all $465,000 of exchange proceeds
• Maria replaces less debt than she paid off on the old property and does not make up the difference with extra cash

That taxable portion is commonly called boot.

Problem 1: Not using all of the $465,000 exchange proceeds

Assume Maria buys a replacement property for $760,000, but only uses $430,000 of exchange proceeds and leaves $35,000 unspent.

That unused $35,000 is usually treated as cash boot.

In practical terms:

• Old net proceeds available for reinvestment: $465,000
• Exchange proceeds actually used: $430,000
• Cash not reinvested: $35,000

That $35,000 does not automatically mean all of it is taxed in every situation, but it is the part most likely to become currently taxable, up to the amount of Maria's realized gain.

The simple rule most investors use is:

• If you want full deferral, reinvest all net exchange proceeds

Problem 2: The new loan is smaller than the old loan payoff

Maria paid off $200,000 of debt when she sold her old property.

If the replacement property has a smaller new loan, that is not always fatal by itself. The issue is whether she makes up that reduction with additional cash.

Example: Smaller loan, but Maria adds cash

Assume Maria buys for $815,000 and gets a new loan of only $150,000 instead of replacing the full $200,000 she paid off.

That creates a $50,000 debt reduction compared with the old property.

If Maria contributes an extra $50,000 of her own cash at closing, she may still preserve full deferral because she replaced the lost debt with new cash.

In plain English:

• Old debt paid off: $200,000
• New debt: $150,000
• Debt reduction: $50,000
• Extra cash added by Maria: $50,000
• Result: she may still avoid taxable boot on that piece because the gap was covered

Example: Smaller loan, and Maria does not add cash

Now assume Maria buys a replacement property for $615,000, takes a new loan of $150,000, uses all $465,000 of exchange proceeds, and does not add extra cash.

That $50,000 gap may be treated as mortgage boot or debt-relief boot.

In simple terms, the IRS may view Maria as having come out of the transaction with $50,000 less debt without fully replacing it through reinvestment.

Problem 3: Both problems happen at the same time

This is very common in real life.

Assume Maria buys a smaller replacement property for $600,000 using:

• $415,000 of exchange proceeds
• A new loan of $185,000

Compared with her original transaction:

• She failed to reinvest $50,000 of the $465,000 exchange proceeds
• Her new debt is $15,000 lower than the $200,000 debt she paid off

Those two shortfalls can both create taxable boot.

This is why investors often hear the shorthand rule:

• To maximize deferral, buy equal or greater value, reinvest all proceeds, and replace debt with debt or cash

The simplest way to think about it

If Maria wants the best chance at full deferral, she should usually aim to do all three:

1. Buy replacement property worth at least as much as what she sold.
2. Use all $465,000 of exchange proceeds.
3. Replace the $200,000 loan payoff with equal debt, extra cash, or a combination of both.

If she falls short on value, cash reinvestment, or debt replacement, the exchange may still be partially valid, but part of the gain can become taxable now.

Quick comparison table

The Key Areas to Pay Close Attention To

These are the points where investors most often make expensive mistakes.

1. Do not touch the sale proceeds

This is the big one.

If the funds go to you, your personal account, or in some cases even to someone acting as your disqualified agent, the exchange may no longer qualify.

2. Start the QI process before closing

You usually cannot “fix it later” after the sale has already closed and the money has been released.

3. Do not confuse “shopping” with “identifying”

The IRS rule is not “be looking at properties within 45 days.”

The rule is that the replacement property must be properly identified in writing within 45 days.

4. Watch both value and debt

Many investors focus only on purchase price.

Also pay attention to:

• Net equity reinvested
• Debt paid off on the old property
• Debt placed on the new property
• Any credits, prorations, or seller concessions that affect how the exchange is structured

5. Be careful with related-party transactions

Exchanges involving related parties have additional rules and follow-up reporting requirements. These deals need extra tax review before you assume they are safe.

6. Remember the tax return deadline issue

The 180-day rule is not always the only deadline. The IRS also ties the receipt deadline to your tax return due date unless extended.

If your exchange starts late in the year, your CPA may need to discuss filing an extension.

7. Mixed-use properties need extra analysis

If a property has both personal-use and investment-use history, the answer is not always simple. Vacation homes, former primary residences, and partially rented properties should be reviewed carefully before the exchange starts.

Common Questions Investors Ask

Does a 1031 exchange eliminate tax?

Usually no. It generally defers tax instead of permanently erasing it.

Can I exchange one property for multiple properties?

Often yes, if the identification and timing rules are handled correctly.

Can I move into the replacement property right away?

That can create risk. Replacement property is generally expected to be acquired for investment or business use, not immediate personal occupancy.

Can I exchange into a property in another state?

Usually yes, as long as both properties are qualifying U.S. real property. U.S. real property and foreign real property are not like-kind to each other.

A Simple 1031 Exchange Checklist

Use this list before you close:

1. Confirm both old and new properties are for investment or business use.
2. Hire the qualified intermediary before the sale closes.
3. Coordinate the QI, CPA, attorney, lender, and agent early.
4. Track the exact closing date of the sale.
5. Deliver written identification by day 45.
6. Lock in financing and due diligence as early as possible.
7. Close on the replacement property by day 180.
8. Report the exchange correctly on Form 8824.

Final Thoughts

A 1031 exchange can be a powerful tool when you want to trade up, improve cash flow, consolidate holdings, or reposition your portfolio without triggering the full tax bill immediately.

But it is a rules-driven process. The investors who do well are usually the ones who treat the exchange like a project with deadlines, documentation, and careful coordination from day one.

If you are thinking about selling an investment property and want help evaluating replacement options in Greater Boston or Metro West, Southborough Realty, LLC can help you think through the real estate side of the decision before you get too close to a deadline.

Sources & References

• IRS Publication 544 - Sales and Other Dispositions of Assets

• IRS Instructions for Form 8824 - Like-Kind Exchanges

• IRS - Like-Kind Exchanges: Real Estate Tax Tips