By Virtual Cost Segregation
The best cost segregation study provider for rental property investors
Built to IRS standards
Audit support includedFlat price for every study3 to 5 business days Tenants by the entirety cost segregation works exactly like any other residential cost segregation study once the engineering firm and your CPA agree on how the property is titled. TBE is a legal ownership structure available only to married couples in roughly half the US states plus DC, and it changes creditor protection, not asset classification, so a rental held this way still qualifies for the same accelerated depreciation as one held in joint tenancy or an LLC.
- Cost segregation for tenants by entirety follows the same engineering rules as any jointly owned residential rental.
- TBE title changes creditor protection and survivorship, not how assets are classified in the study.
- Bonus depreciation sits at 100% permanently under OBBBA for property placed in service after January 19, 2025.
- A flat-fee engineering-based study runs $2,200 and takes 3 to 5 business days regardless of title structure.
- A spouse's death under TBE title triggers a basis step-up on only half the property in common law states.
Why cost segregation matters for tenants by entirety owners
Married couples who title a rental as tenants by the entirety are treated as one legal owner for creditor purposes, but the IRS still wants to see whose material participation supports a Schedule E deduction. That distinction matters more in 2026 than it did a few years ago, because bonus depreciation is back to 100% and the first-year write-off from a cost segregation study is large enough that a filing mismatch between title and tax return draws attention.
Before you order anything, structuring ownership before a cost segregation study is worth reading in full, because the deed language, not the marriage itself, determines whether you actually have TBE protection. Some states require the words "as tenants by the entirety" on the deed; a generic "husband and wife" grant defaults to a different structure in several jurisdictions.
The reclassification math does not change based on title. A typical engineering-based study on a residential rental in 2026 reallocates roughly 25% of the depreciable basis into 5-year, 7-year, and 15-year property. Whether that property is titled TBE, joint tenancy, or held in an LLC has zero effect on that percentage. What changes is who reports the resulting deduction and what happens to the deduction if the marriage or one spouse's life ends.
How TBE owners should approach a cost segregation study
1. Confirm your state actually recognizes TBE title
Tenancy by the entirety is not universal. It exists for real estate in roughly half the states (including Florida, Pennsylvania, Virginia, Michigan, and Delaware) and the District of Columbia, and a handful of those states limit it to real property only, excluding furnishings and personal property inside a short-term rental.
- Check your state's specific TBE statute before assuming protection applies
- Confirm whether TBE covers personal property (furniture, appliances) or real estate only
- Note that TBE generally requires both spouses to hold identical, undivided interests
- Verify the deed predates any refinance or title transfer that could have reset the structure
2. Match your CPA's filing before you order a study
A cost segregation report is not a CPA service and it is not filed with the IRS. It is a supplementary, audit-defensible document your CPA implements on your return, so filing status has to be settled first.
- Decide MFJ versus MFS before the study is scheduled, since it affects who claims the deduction
- Confirm both spouses' names match the deed and the tax return exactly
- If one spouse is using the STR loophole to offset W-2 income, review how a spouse can use the STR loophole against a W-2 job before the study is ordered
- Ask your CPA whether material participation records need to name one spouse or both
3. Verify the deed and title language before the walkthrough
The engineering firm needs accurate ownership documentation for the report file, not just a purchase contract.
- Pull the current recorded deed and confirm it uses TBE language, not "joint tenants with right of survivorship"
- Flag any quitclaim, refinance, or entity transfer that happened after the original purchase
- Note the placed-in-service date, since that determines bonus depreciation eligibility
- Keep a copy of the deed with your cost segregation report for future reference
4. Order an engineering-based study on the property itself
Ownership structure does not change how an engineer classifies a roof, an HVAC system, or a deck. It changes only where the resulting number lands on a tax return.
- Expect a 100+ page engineering-based report regardless of title structure
- A no-site-visit study using architectural plans, tax records, and photos typically closes in 3 to 5 business days
- Flat-fee pricing at $2,200 means the ownership structure does not add cost to the study itself
- Confirm the report documents the property address and legal description matching the deed on file
Get a flat-fee cost segregation quote
Engineering-based studies for residential rentals, delivered in 3-5 business days.
5. Apply bonus depreciation on a joint return
Bonus depreciation sits at 100% permanently under the One Big Beautiful Bill Act for property acquired and placed in service after January 19, 2025. That first-year deduction typically lands on a joint Schedule E for TBE couples filing MFJ.
- Confirm the placed-in-service date qualifies for 100% bonus depreciation, not a prior-year phase-down rate
- Run the math on a high earner in the 37% bracket: a $25,000 reclassified basis deducted in year one saves roughly $9,250 in federal tax before state impact
- Coordinate with your CPA on Form 4562 to make sure the deduction is entered once, not duplicated across both spouses' K-1s if the property later moves into an entity
- Recheck the STR loophole's material participation test annually, since it determines whether the deduction offsets active W-2 income or stays passive
6. Plan for death, divorce, or a later transfer
TBE ownership includes automatic survivorship, but the tax consequences differ from a full step-up.
- In common law states, a surviving spouse under TBE title typically receives a stepped-up basis on only the deceased spouse's half interest, not the full property
- Divorce generally converts TBE automatically into tenancy in common in most states, which can trigger a mid-year change in how depreciation is split
- A sale after either event can trigger depreciation recapture on the previously accelerated amount, taxed under Section 1250 rules
- Loop your CPA in before any deed change, since retitling can affect basis and depreciation schedules going forward
7. Keep documentation that separates title from operations
An auditor looking at a TBE-owned short-term rental wants to see two things line up: who holds title and who materially participates.
- Keep the STR loophole time log under the name of whichever spouse claims material participation
- Retain the cost segregation report for the full recovery period of the reclassified assets
- Store the recorded deed alongside the engineering report, not in a separate file
- Update documentation immediately after any refinance, quitclaim, or entity restructuring
Comparing ownership structures for a residential rental
| Structure | Best for | Creditor protection | Cost segregation impact |
|---|---|---|---|
| Tenants by the Entirety | Married couples in a TBE-recognizing state wanting spousal asset protection | Strong: a creditor of one spouse alone generally cannot force a sale | None on classification; affects only how basis is treated at death or divorce |
| Joint Tenancy with Right of Survivorship | Co-owners (married or not) wanting survivorship without TBE's marriage requirement | Weak: either owner's individual creditor can force partition | None on classification; full basis step-up rules differ by state |
| Tenancy in Common | Unmarried co-owners or unequal ownership splits | None: each owner's share is independently exposed | None on classification; depreciation splits by ownership percentage |
| LLC (single or multi-member) | Investors wanting liability separation from personal assets | Depends on state charging order protection | None on classification; K-1 allocation requires CPA coordination |
| Revocable Living Trust | Estate planning and probate avoidance | None from creditors; protects against probate delay | None on classification; grantor trust rules usually mean no filing change during the owner's lifetime |
For a deeper look at trust-held rentals, cost segregation for property held in a trust walks through grantor versus non-grantor treatment in more detail.
Verdict: tenants by the entirety is the right structure for married couples prioritizing spousal asset protection over flexibility, and it changes nothing about the size of a cost segregation deduction.
“Under tenancy by the entirety, a creditor of one spouse alone generally cannot reach the property, but the IRS still treats the rental income as jointly earned.”
Common mistakes tenants by entirety owners make
- Titling the deed as "joint tenants" instead of true TBE language. Some deeds use loose wording that defaults to a weaker structure, losing the liability protection the couple thought they had.
- Assuming TBE title changes the reclassification percentage. Engineering classification runs off the building components, not the deed; a TBE-titled duplex reclassifies the same share of basis as an identically built duplex in an LLC.
- Skipping basis step-up planning before a spouse's death. Failing to document fair market value at the date of death understates the depreciable basis available afterward.
- Filing MFS to save on state tax without adjusting the depreciation split. A cost segregation deduction claimed on a joint Schedule E does not automatically divide cleanly if the couple later files separately.
- Using a low-cost or overseas provider that skips ownership documentation. An audit-defensible report needs the deed and title history on file, not just square footage and photos.
FAQ
What is tenancy by the entirety and how does it affect cost segregation?
Tenancy by the entirety is a legal ownership structure for married couples, recognized in roughly half of US states plus DC, that treats the couple as one owner with strong creditor protection. It does not change how a cost segregation study classifies building components, only how the property is treated at death, divorce, or under creditor claims.
Can married couples in a joint tenancy still do a cost segregation study?
Yes. Joint tenancy with right of survivorship qualifies for the same engineering-based cost segregation study as tenancy by the entirety, an LLC, or a trust. The IRS looks at the property and the return, not the title structure, when reviewing depreciation.
Does TBE title change the reclassification percentage in a cost segregation study?
No. A typical residential study reallocates roughly 25% of depreciable basis into shorter recovery periods regardless of whether the deed says tenants by the entirety, joint tenancy, or LLC. Reclassification depends on the building's components, not the deed.
What happens to depreciation if one spouse dies while owning a TBE rental?
In most common law states, the surviving spouse receives a stepped-up basis on only the deceased spouse's half interest, not the full property. That partial step-up should be documented with a date-of-death appraisal before continuing depreciation on the property.
Do both spouses need to file MFJ to use the STR loophole with TBE ownership?
No, but filing status affects how the deduction is reported. Couples filing MFJ typically claim the STR loophole deduction on a single joint Schedule E, while MFS filers need their CPA to allocate material participation and the deduction between two separate returns.
Which states recognize tenancy by the entirety for real estate?
Roughly half of US states recognize TBE for real property, including Florida, Pennsylvania, Virginia, Michigan, and Delaware, and some limit it to real estate only, excluding furnishings inside a short-term rental. Confirm your specific state's statute before assuming the protection applies.
How much does a cost segregation study cost for a TBE-owned rental?
A flat-fee engineering-based cost segregation study runs $2,200 regardless of ownership structure, since the fee covers the building analysis, not the title work. The report typically delivers in 3 to 5 business days.
Does divorce affect a cost segregation study already completed?
The study itself does not change, but divorce typically converts TBE title into tenancy in common in most states, which can split the depreciation schedule between two separate returns going forward. Loop in a CPA before the divorce is finalized to plan the transition.
One last thing
Some TBE states limit the structure to real property only, which means a fully furnished short-term rental under TBE title still has its appliances, furniture, and decor titled separately as personal property. That distinction matters for a cost segregation report, since personal property inside the unit gets reclassified into 5-year and 7-year categories regardless of how the real estate itself is titled, and it is worth confirming with your CPA which category applies to each asset before the return is filed in 2026.
