1031 Exchange FAQ: 28 Questions Answered
Straightforward answers to the questions real estate investors ask most often — rules, timelines, tax mechanics, replacement property decisions, DSTs, and when a financial advisor belongs in the room.
The Basics
1. What is a 1031 exchange?
A 1031 exchange — named after IRC §1031 — lets an investor sell investment real estate and defer capital gains tax, depreciation recapture, and the 3.8% Net Investment Income Tax by reinvesting the proceeds into like-kind replacement property. The gain is deferred, not forgiven: it lives in the replacement property's lower carryover basis until a taxable sale occurs or the investor dies (in which case heirs receive a stepped-up basis under IRC §1014 that can permanently eliminate the deferred tax).
2. What types of property qualify for a 1031 exchange?
Any U.S. real property held for investment or productive use in a trade or business qualifies. Rental homes, multifamily buildings, commercial property, raw land, industrial warehouses, Delaware Statutory Trusts (DSTs), and ground leases with 30+ years remaining all qualify. Primary residences, fix-and-flip inventory, partnership interests, and foreign property do not qualify. The Tax Cuts and Jobs Act of 2017 eliminated like-kind exchange treatment for personal property (equipment, aircraft, artwork) effective January 1, 2018.
3. What does "like-kind" mean for real estate?
For real estate, "like-kind" is very broad: any U.S. investment real property is like-kind to any other U.S. investment real property, regardless of property type. You can exchange a rental house for a commercial office building, raw land for a multifamily property, or a single-tenant NNN store for a share in a Delaware Statutory Trust — all qualify. The key requirement is that both properties be held for investment or business use, not personal use.
4. Is there a minimum property value required?
No. IRC §1031 imposes no minimum dollar amount. However, QI fees ($750–$2,500+) and advisory costs should be weighed against the tax deferred. On a property with $50,000 in total gain, exchange overhead may consume 20–30% of the benefit. On a property with $500,000 in deferred tax, the same overhead is trivial. There is no maximum either — exchanges on properties valued $10M–$50M+ follow the same rules.
Rules and Timelines
5. What is the 45-day identification rule?
After the relinquished property closes, you have exactly 45 calendar days to identify potential replacement properties in writing to your qualified intermediary. There are three rules: the Three-Property Rule (up to 3 properties of any value), the 200% Rule (any number of properties as long as their combined FMV ≤ 200% of the sale price), and the 95% Rule (any number of properties if you acquire at least 95% of total identified value). Missing the 45-day deadline disqualifies the entire exchange — there are no extensions except in federally declared disasters.
6. What is the 180-day rule?
You must close on all replacement properties within 180 calendar days of the relinquished property closing — not 180 days from the ID deadline. The 45-day and 180-day clocks both start on the same day (relinquished property close). For exchanges straddling a tax return due date, you must either close within 180 days or file Form 4868 (individuals) or 7004 (entities), because the exchange window cannot extend past the unextended return due date.
7. What is a qualified intermediary and why is one required?
A QI holds the sale proceeds between closings so you never constructively receive the funds — if you do, the exchange fails immediately. Your attorney, CPA, real estate agent, or anyone who has acted as your agent within the prior 2 years is a "disqualified person" and cannot serve as QI. Look for a QI with segregated accounts, fidelity bond coverage, and E&O insurance. Fees typically run $750–$2,500 for a standard forward exchange.
8. How long do I have to hold the replacement property?
There is no statutory minimum holding period. However, property acquired with intent to immediately resell (flip) does not qualify as "held for investment," and the IRS has challenged short post-exchange sales. The Rev. Proc. 2008-16 safe harbor for vacation rentals requires 24 months. For standard investment property, a 1–2 year hold with documented rental activity is the practical minimum most tax advisors recommend. A same-year sale after exchange is an audit red flag.
9. What documents are needed for a 1031 exchange?
Core documents: Exchange Agreement with the QI (signed before the relinquished property closes), Assignment of Purchase and Sale Agreement, written identification letter sent to the QI within 45 days, assignment on the replacement property purchase contract, and closing statements for both legs. Also keep: original purchase price and improvement history on the relinquished property, all prior exchange documents if this is a chain exchange, and the QI's wire transfer records. These are needed to calculate carryover basis and may be required in an IRS audit years later.
Tax and Financial Mechanics
10. What is "boot" and how is it taxed?
Boot is exchange proceeds not reinvested into like-kind replacement property — either cash you receive or a net reduction in mortgage debt. Boot triggers recognized gain up to the lesser of the boot amount or total realized gain. It is taxed in this order: §1250 depreciation recapture (up to 25% federal) first, then long-term capital gain (0%, 15%, or 20%), then the 3.8% NIIT. A $250,000 cash boot on a highly appreciated property with significant accumulated depreciation can generate $50,000–$80,000+ in federal tax.
11. How is depreciation recapture handled in a 1031 exchange?
Depreciation recapture is deferred, not eliminated. The exchange carries the relinquished property's adjusted (lower) basis into the replacement property — so all accumulated §1250 recapture follows along. When the replacement property is eventually sold in a taxable transaction, the recapture (taxed at up to 25% federal) is still due. The only permanent escape: death, when IRC §1014 resets the basis to fair market value for heirs, permanently eliminating both the deferred gain and the recapture.
12. Does a 1031 exchange completely eliminate taxes?
No — it defers them. The deferred gain lives in the replacement property's lower carryover basis indefinitely. Serial 1031 exchanging can defer tax for a lifetime. The tax is permanently eliminated only if the investor holds until death (IRC §1014 step-up to FMV), donates the property to charity, or contributes it to a charitable remainder trust. Under OBBBA (July 2025), the estate and gift tax exemption is permanently $15M per person, so the step-up strategy is available to estates well below that threshold with no federal estate tax concern.
13. How much must I reinvest to fully defer all taxes?
For full deferral: (1) reinvest 100% of the sale proceeds — all equity and debt payoff — and (2) replace all debt by carrying at least as much new mortgage debt or substituting additional cash equity. Receiving any cash is boot. If the new loan is smaller than the old one, the debt reduction is mortgage boot. Use a replacement property calculator to model the exact minimum reinvestment numbers for your deal.
14. What happens to my tax basis after a 1031 exchange?
Your basis in the replacement property is the relinquished property's carryover basis — not the replacement property's purchase price. The replacement property inherits the same accumulated gain and depreciation as the old one. Future depreciation on the replacement property restarts based on its purchase price, but the deferred gain stays locked in the lower basis. Basis becomes more complex with boot, debt changes, or a chain of multiple exchanges — a CPA should calculate the adjusted basis after each exchange.
15. Do suspended passive activity losses release in a 1031 exchange?
No. Under IRC §469(g), suspended PALs are only released when the passive activity is disposed of in a fully taxable transaction. A 1031 exchange is a nonrecognition transaction — not "fully taxable" — so PALs carry over to the replacement property still suspended. The one partial exception: boot creates recognized gain that is characterized as passive income, which can absorb PALs from the same activity up to that amount. Full PAL release happens only in a taxable sale or if the investor qualifies as a Real Estate Professional under IRC §469(c)(7).
16. What are the state tax implications?
All 50 states recognize 1031 exchanges. However, five states have "clawback" provisions — California, Oregon, Montana, Massachusetts, and Idaho — that follow the deferred gain across state lines. If you exchange out of a California property into a Texas replacement, California still claims tax when the Texas property is eventually sold; California Form 3840 must be filed annually until then. California's top rate can reach 13.3%. Exchanging within the same clawback state avoids the issue.
Replacement Property Decisions
17. Can I buy multiple replacement properties?
Yes. The 200% Rule and 95% Rule both allow identifying multiple replacements. You can sell one building and acquire two or three, or sell multiple properties and consolidate. When buying multiple replacements, combined replacement value and total new debt must both equal or exceed the relinquished side to achieve full deferral. Basis is allocated across multiple replacements proportional to each property's FMV under Treas. Reg. §1.1031(j)-1(b)(5).
18. What is a reverse 1031 exchange?
A reverse exchange lets you acquire the replacement property before selling the relinquished property. Under the Rev. Proc. 2000-37 safe harbor, an Exchange Accommodation Titleholder (EAT) takes title to one of the properties and holds it for up to 180 days while you complete the transaction. Cost runs $8,000–$20,000 in overhead above a forward exchange and creates financing complications since most lenders won't loan to an EAT. See the reverse exchange guide for the two parking structure options.
19. What is a build-to-suit (improvement) exchange?
An improvement exchange uses the same EAT structure: the EAT acquires the replacement property and holds title while exchange proceeds fund construction or renovation. All improvements must be complete and the property transferred within 180 days. If construction is not finished by day 180, only completed improvements count toward replacement value — the remainder becomes boot. This is the most common cause of unintended partial boot in complex exchanges.
20. Can I exchange a vacation rental or Airbnb property?
Yes, if you meet the Rev. Proc. 2008-16 safe harbor: own the property at least 24 months before the exchange, rent it at fair market rate for at least 14 days per year in each of the two 12-month periods before the sale, and limit personal use to the greater of 14 days or 10% of the days rented at fair market rate. Short-term rentals add a depreciation complication: STRs may qualify for 39-year commercial depreciation (instead of 27.5-year residential) depending on average rental period, affecting cost segregation and recapture calculations. See the vacation rental guide for the full analysis.
21. When does a taxable sale beat the 1031 exchange?
The exchange loses when: you have large suspended passive losses that would absorb the gain tax-free in a taxable sale; your income puts you at a 0% LTCG rate; the replacement property market is overpriced and you'd be rushing into a bad deal before the 180-day clock expires; you need liquidity for retirement income and cannot replace it from other sources; or your estate plan already captures the step-up at death. See the exchange vs. taxable sale guide for a worked comparison.
Special Structures and Situations
22. What is a Delaware Statutory Trust (DST)?
A DST is a fractional ownership structure in institutional-grade real estate that qualifies as 1031 replacement property under Rev. Ruling 2004-86. Investors receive pro-rata ownership and monthly distributions (typically 4–6% annually) with no management responsibilities. DSTs are subject to the "Seven Deadly Sins" — seven structural restrictions that prohibit new debt, capital calls, new leases, and property improvements. DST investors must be SEC-accredited (net worth over $1M excluding primary residence, or income over $200K/$300K MFJ).
23. What are the "Seven Deadly Sins" for DSTs?
Rev. Ruling 2004-86 requires DSTs to be passive investments with seven prohibitions: (1) no new debt after the offering closes, (2) no capital calls, (3) no reinvestment of cash distributions beyond short-term maintenance reserves, (4) no new leases — only renewals of the existing master lease, (5) no sale of assets within the trust before the planned exit, (6) no renegotiation of existing debt, and (7) no property improvements beyond routine minor repairs. These restrictions are the price of IRS-compliant 1031 treatment as passive fractional ownership.
24. What is a UPREIT and how does it relate to a 1031 exchange?
A UPREIT (Umbrella Partnership REIT) allows an investor to contribute property to a REIT's operating partnership in exchange for OP units under IRC §721 — a non-recognition transaction. Many investors use a DST as a 1031 replacement, then exercise a DST-to-UPREIT conversion after a 2-year safe harbor window. OP units can eventually be converted to publicly traded REIT shares, providing liquidity that a DST cannot. After the §721 contribution, no further 1031 exchange is possible since OP units are not real property.
25. Can I exchange a property held in a partnership or LLC?
Partnership interests are excluded from 1031 treatment under IRC §1031(a)(2)(D). Multi-member LLCs use one of three structures: drop-and-swap (distribute TIC interests to partners before the sale; each partner exchanges individually), entity-level exchange (the LLC sells and reinvests; all members must agree on the replacement), or DST acquisition (each partner trades their TIC interest for a DST position). Single-member LLCs are disregarded entities — the sole member exchanges directly without any structural issue. See the LLC and partnership guide.
26. What is the related party rule?
IRC §1031(f) requires both the buyer of the relinquished property and the seller of the replacement property to hold their respective properties for at least 2 years after the exchange when either is "related" to you. Related parties include family members under IRC §267(b) (spouse, siblings, parents, children) and entities in which you own more than 50%. If either party sells within 2 years, the exchange unwinds and taxes become due. Three exceptions: death, involuntary conversion, or no-tax-avoidance purpose. Using a DST as the replacement breaks the related-party chain.
27. Can I combine a 1031 exchange with an Opportunity Zone investment?
Not directly with the same dollars — Opportunity Zone funds require investing recognized capital gain, not 1031 exchange proceeds. You can combine strategies by intentionally taking boot: recognized gain from boot can be invested in a Qualified Opportunity Fund within 180 days. OBBBA (July 2025) updated the OZ program with a rolling 5-year deferral mechanism and new zones designated in January 2027. The original OZ program's December 31, 2026 deferral deadline still applies to 2021-designated zones.
28. What does a financial advisor do that my CPA and QI don't?
The QI handles compliance — holding proceeds and documenting the exchange timeline. Your CPA calculates the tax and files the return. Neither typically models the full financial trade-off. A fee-only financial advisor can compare the after-tax, after-reinvestment wealth outcome of exchanging vs. selling, model whether the replacement property's income meets retirement cash-flow needs, size the post-exchange liquidity reserve, evaluate DST concentration risk against your overall portfolio, and coordinate with your estate attorney on step-up-at-death planning. This matters most when the exchange is above $1M and involves leverage, DSTs, or retirement income planning.
More detail on key topics
Boot Tax Calculator
Enter cash kept and old vs. new debt. Get your §1250 recapture, LTCG, and NIIT on any boot — plus a side-by-side comparison to a full taxable sale.
Replacement Property Calculator
Enter your sale terms. Get the minimum replacement value, equity, and debt required for full deferral — plus a 4-scenario boot table.
Deadline Calculator
Enter your sale closing date. Get exact 45-day and 180-day deadlines with a late-year extension warning.
Boot Explained
How cash boot and mortgage boot are taxed, in what order, and five ways to avoid a surprise tax bill at closing.
DST Guide
When a Delaware Statutory Trust makes sense as replacement property, the Seven Deadly Sins restrictions, and accredited investor requirements.
Planning Checklist
Phase-by-phase checklist from pre-decision through post-exchange financial planning, with the seven most common failure modes.
Sources
- IRS Revenue Ruling 2004-86 — DST qualification as 1031 replacement property
- IRS Revenue Procedure 2000-37 — Reverse and improvement exchange safe harbor (EAT structure)
- IRS Revenue Procedure 2008-16 — Vacation home / dwelling unit safe harbor for 1031 exchanges
- IRC §1031 — Like-kind exchanges of real property (law.cornell.edu)
- IRC §469 — Passive activity loss rules including §469(g) disposition rule (law.cornell.edu)
All tax values and IRC citations reflect 2026 tax year rules, including OBBBA (July 2025) and TCJA as in effect. Section 1031 exchange mechanics (45-day/180-day rules, identification rules) are set by statute and have not changed under OBBBA or recent legislation. Verify specific dollar amounts and filing requirements with your CPA or tax attorney before acting. Last reviewed June 2026.
Get matched with a 1031 exchange specialist
A financial advisor who focuses on real estate liquidity events can model the exchange vs. taxable sale comparison, size replacement property equity and debt requirements, evaluate DST options, and coordinate with your QI and CPA. Tell us about your situation and we will match you with a fee-only advisor who handles 1031 exchange planning.