Can You 1031 Exchange Commercial Property for Residential?

The most-asked variant of "is this like-kind?" is some version of "I'm selling X and buying Y — does §1031 work?" For US investment real estate, the answer is almost always yes, and the breadth of the rule is one of the planning advantages of §1031 over alternative tax structures.

The Broad Like-Kind Rule for Real Estate (Post-TCJA)

Before the Tax Cuts and Jobs Act of 2017, IRC §1031 covered both real and personal property. TCJA narrowed §1031 to real property only, effective January 1, 2018. The narrowing was a meaningful change for personal property — equipment, vehicles, livestock — but it did not narrow how the IRS applies the like-kind concept within real estate.

For real estate, the like-kind concept has always been broad. Treas. Reg. §1.1031(a)-1(b) states:

"As used in section 1031(a), the words 'like kind' have reference to the nature or character of the property and not to its grade or quality. One kind or class of property may not, under that section, be exchanged for property of a different kind or class. ... Improved real estate and unimproved real estate are like kind because the difference is one of grade or quality, not of kind or class."

The same regulation extends to all real-estate combinations:

• Commercial real estate (office, retail, industrial) is like-kind to residential real estate (single-family rentals, apartment complexes, condos held for rent).
• Improved real estate is like-kind to unimproved (raw) land.
• Fee-simple ownership is like-kind to leasehold interests of 30+ years.
• Specific use categories (medical office, self-storage, hospitality, manufactured-home parks) are all like-kind to each other and to general commercial or residential property.

The bright-line cutoffs are use (must be held for investment or business) and location (must be in the same country — see foreign property rule). Within those, almost anything goes.

Mixed-Use and Partial-Commercial Properties

Mixed-use buildings (retail downstairs, apartments upstairs) raise the question of how to handle the parts. The general rule: §1031 applies proportionally based on use.

• The portion of a mixed-use property used commercially is investment-property (assuming it's held that way), and exchanges as commercial real estate.
• The portion used residentially is also investment property if rented; if owner-occupied, it falls outside §1031 (similar to a primary residence).
• The exchange value is allocated by square footage, basis, or another reasonable method — the taxpayer needs a defensible methodology.

An owner-occupied mixed-use property (a "house hack" with the owner in one unit and tenants in others) requires a Section 121 / Section 1031 split allocation similar to converting a primary residence. The owner-occupied portion is excluded from §1031 and may qualify for §121 home-sale exclusion; the tenant-occupied portion is §1031-eligible. The math is fiddly but well-supported in case law.

Converting After Exchange (Keep It Investment)

A common downstream question: can the taxpayer move into the residential replacement property after the §1031? The answer is "eventually, with constraints."

The replacement property must be held for investment for a meaningful period before personal use begins. The IRS has historically used a 2-year benchmark by analogy to Rev. Proc. 2008-16:

• Hold the replacement as a rental for at least 24 months.
• During those 24 months, rent at fair market for at least 14 days each year and limit personal use to 14 days or 10% of rental days, whichever is greater.
• After 24 months, the property can be converted to a primary residence without retroactively voiding the §1031.

Investors who convert too early invite §1031 disallowance. The IRS treats the conversion as evidence that the replacement was never genuinely held for investment, undoing the deferral.

Financing Considerations (Commercial vs Residential Loans)

Operationally, commercial-to-residential exchanges encounter financing differences that need to be planned for:

• Commercial loans typically have shorter amortization (15-25 years), balloon payments, more lender scrutiny, and higher rates. They prepay rules vary widely; some have prepayment penalties that can complicate exchange timing.
• Residential investment loans (DSCR loans, conventional 1-4 unit investor loans) generally have 30-year amortization, no balloons, and standardized prepayment treatment. Closing timelines are typically faster.
• Boot from refinancing. If the taxpayer takes cash out at closing on the replacement (mortgage boot) above what was on the relinquished property, the excess is generally taxable. Plan financing to avoid unintended boot.

Coordinating with a lender experienced in §1031 closings prevents the most common timing problem — financing falling through inside the 180-day window with no time to find a substitute.

Depreciation Recovery Periods (39-Year vs 27.5-Year)

The IRS uses different depreciation recovery periods for different real-estate categories:

• Residential rental property: 27.5-year straight-line depreciation under MACRS.
• Non-residential (commercial) real property: 39-year straight-line depreciation.

An exchange from commercial to residential or vice versa shifts the depreciation life of the basis attributable to the building. The mechanics are unintuitive:

• The relinquished property's basis carries over to the replacement (with adjustments for boot received or paid).
• That carryover basis continues to depreciate on its original schedule — i.e., the 39-year clock from the commercial property continues even after the property is now residential.
• Any new basis created at exchange (cash paid above the relinquished value) depreciates on the replacement property's schedule (27.5 years for residential).

This produces a "split basis" with two different depreciation schedules running in parallel. Most tax-prep software handles it, but the year-one return after exchange usually needs CPA attention.

Simple 1031 LLC handles QI mechanics for any like-kind real-estate exchange, including cross-category swaps. We are a Qualified Intermediary and do not provide tax, legal, or investment advice — depreciation modeling, financing structure, and §121/§1031 stack analysis belong with your CPA.

Frequently Asked Questions