Cost Segregation for Medical & Dental Offices: 2026 Guide
A medical or dental office is a clinical fit-out wrapped in a building: exam casework, medical-gas piping, imaging power, and specialty plumbing are 5-year property, not shell. A $1.5M practice reclassifies ~$379K (≈31%), about $145,000 in Year-1 federal tax savings.
A medical or dental office reclassifies far more than a plain office because it isn’t really an office — it’s a clinical fit-out wrapped in a building. The exam and procedure casework, the medical-gas piping (oxygen, vacuum, nitrous), the scrub sinks and specialty plumbing, the dedicated power and cooling for an imaging suite, the nurse-call and clinical data cabling, and the procedural task lighting are all 5-year personal property when you own them. Add the documented imaging and clinical equipment (5/7-year) and the patient parking and site work (15-year), and only the bare shell is left on the 39-year schedule. On a $1.5 million practice, about $379,000 (≈31%) of basis reclassifies — worth roughly $145,000 in Year-1 federal tax savings at the 37% bracket with 100% bonus depreciation, against a $3,295 study fee. A study identifies and documents these assets; it does not assume them.
Why a Clinical Office Beats a Plain Office
A general office is mostly building. A medical or dental office carries a second layer the tax code treats as personal property: the specialty clinical infrastructure that makes the space usable for patient care.
The clinical systems. Medical-gas distribution, scrub-sink and eyewash plumbing, HEPA filtration and negative-pressure isolation, nurse-call and patient-monitoring cabling, and the dedicated MEP that powers and cools an imaging suite all serve identifiable medical equipment, not the building’s general systems — so they’re generally 5-year property.
The clinical build-out. Exam-room sink cabinets and procedure counters, built-in sterilization and lab casework, procedural and surgical task lighting, imaging mounts and ceiling service columns, and the branded, patient-facing reception finishes are trade fixtures and specialty property — typically 5-year, replaced on a practice turnover.
The equipment and the site. Owned, documented imaging and clinical equipment (a CBCT, X-ray, or exam package) carves out as 5/7-year personal property. The patient parking, ADA ramps, site lighting, and landscaping are 15-year land improvements.
What a cost segregation study changes.
| Metric | Without cost seg (39-year) | With cost seg + 100% bonus |
|---|---|---|
| Year-1 depreciation | ~$31,800 | ~$391,000 |
| Year-1 tax savings @ 37% | ~$11,800 | ~$145,000 |
| Reclassified into 5/7/15-yr | $0 | ~$379,000 (≈31%) |
| Study cost | N/A | $3,295 |
| Delivery time | N/A | Under 1 hour |
What Gets Reclassified
Our engine models a medical or dental office from a dedicated component library built bottom-up from industry-standard construction cost data (GSA schedules, public procurement pricing, DOT unit-cost data). Here’s what moves out of the 39-year shell.
Five-year property — the clinical fit-out:
- Exam-room casework (sink cabinets, procedure counters), medical-gas distribution (O2, vacuum, medical air, nitrous), specialty plumbing (scrub sinks, eyewash, dialysis loops), HEPA filtration & isolation-room pressurization
- Imaging-suite MEP (conditioned power, cooling, structural reinforcement, ceiling mounts), nurse-call, monitoring & clinical low-voltage, clinical/procedural task lighting, sterilization & lab casework rough-ins
- Decorative reception & waiting-room finishes, privacy-curtain tracks & cubicle systems
Documented equipment & site:
- Owned imaging & clinical equipment (CBCT, X-ray, exam package) — 5/7-year when documented; office & waiting-room furniture — 7-year
- Patient parking, ADA ramps, site lighting & landscaping — 15-year land improvements
Here’s how the most common practice assets typically classify:
| Component | Typical recovery period |
|---|---|
| Exam-room casework (sink cabinets, procedure counters) | 5-year personal property |
| Medical-gas distribution (O2, vacuum, medical air, nitrous) | 5-year personal property |
| Specialty plumbing (scrub sinks, eyewash, lab loops) | 5-year personal property |
| Imaging-suite MEP (CBCT/CT/MRI power, cooling, mounts) | 5-year personal property |
| Nurse-call, monitoring & clinical low-voltage | 5-year personal property |
| Clinical & procedural task lighting | 5-year personal property |
| Sterilization & lab casework rough-ins | 5-year personal property |
| Decorative reception & waiting-room finishes | 5-year personal property |
| Documented imaging & clinical equipment (CBCT, exam) | 5/7-year personal property |
| Office & waiting-room furniture | 7-year personal property |
| Patient parking, ADA, site lighting & landscaping | 15-year land improvement |
| Building shell, structure & general HVAC | 39-year real property |
Recovery periods reflect typical treatment under IRS Publication 5653 and Rev. Proc. 87-56. The classification of any specific asset depends on its facts and is determined in the study — and clinical equipment is included only when present and documented, never assumed. Items such as lead-lined imaging partitions or an attached patient-drop-off canopy are reviewed case by case before any reclassification.
A Real Example: $1.5M Medical/Dental Office
Take a 5,000-square-foot medical/dental office purchased for $1.5 million with its clinical fit-out and a documented imaging and exam package. After land, roughly $1.24 million is depreciable basis.
Without a study, that depreciates straight-line over 39 years — about $31,800 a year. At a 37% bracket, ~$11,800 of Year-1 benefit.
With a cost segregation study, the engineering breakdown identifies about $379,000 of the basis as shorter-lived property — the exam casework, medical-gas and specialty plumbing, imaging-suite MEP, documented equipment, and the parking. Under 100% bonus depreciation that’s deductible in Year 1, producing roughly $391,000 of first-year depreciation worth about $145,000 in federal tax savings — against a $3,295 study fee.
$1.5M practice · 5,000 SF · documented imaging + exam package · CPA-ready report
This is an owner study on a practice bought with its clinical fit-out in place. The exam casework, medical-gas and specialty plumbing, imaging-suite MEP, and documented imaging and exam equipment all book as 5- and 7-year personal property, and the patient parking and site work as 15-year land improvements — leaving the bare shell and general HVAC on the 39-year schedule.
Illustrative model. Actual reclassification and tax savings vary by property, basis, specialty, and documented equipment. Confirm with your CPA before filing.
Dental, Ortho, Derm, Surgery & Urgent Care
The same playbook flexes across the clinical segment. Dental and orthodontic offices are dense with operatory casework, panoramic and CBCT imaging power, and compressed air and vacuum. Surgery centers and dermatology add procedure-room MEP, medical gas, and sterilization. Urgent care carries exam casework, imaging, and a small lab. Whatever the specialty, the study captures the clinical fit-out and the documented equipment that are actually present.
Bought Years Ago? Claim the Catch-Up
You don’t have to do this in the year you buy or build. A lookback study lets you file a Form 3115 with your current-year return and pull all the depreciation you missed in prior years into one year — no amended returns, automatic IRS consent.
The Bottom Line for Your Practice
If you own a medical or dental office on the 39-year schedule, you’re very likely leaving six figures of first-year depreciation on the table — because the clinical fit-out that makes it a practice is exactly the property a generic study under-classifies.
Should you do this?
A cost seg study probably makes sense on your practice if any of these are true:
- You bought or built the office in the last 1–10 tax years. A lookback study via Form 3115 captures the catch-up without amending old returns.
- You own the clinical fit-out — you bought the building with it, or you built it out yourself.
- You’re the tenant who funded your own operatory or exam build-out. That basis usually reclassifies even more.
- Your basis is at least ~$500K and you have practice income the deduction can reduce.
Scenarios above are illustrative. Outcomes depend on basis, ownership of the build-out, specialty, tax bracket, and documented equipment. Confirm with your CPA before filing.
Cost Seg Smart is the modern cost segregation company — reports in under an hour, not six weeks, and standard-commercial pricing from $1,995 rather than five-figure fees. If you own a medical or dental office, order your study → and the CPA-ready report lands in your inbox in under an hour. See the full medical-office cost segregation overview for component-level detail and worked examples.
Frequently asked
What is cost segregation for a medical or dental office?
Cost segregation is an engineering-based analysis that separates a medical or dental office's purchase or build-out cost into its component assets and assigns each the shorter recovery period the tax code allows. Instead of depreciating the whole property over 39 years, the study identifies the clinical fit-out — exam-room casework, medical-gas piping, specialty plumbing, imaging-suite power and cooling, and clinical low-voltage — as 5-year personal property, the documented imaging and clinical equipment as 5/7-year, and the parking and site work as 15-year land improvements. It identifies and documents these assets; it does not assume them.
Do medical and dental offices qualify for cost segregation?
Yes — a clinical office reclassifies more than a plain office because the fit-out is dense with specialty infrastructure. Exam and procedure casework, medical-gas distribution (oxygen, vacuum, nitrous, medical air), scrub sinks and specialty plumbing, dedicated imaging power and cooling, nurse-call and clinical data cabling, and procedural lighting are all 5-year personal property when you own them and they are documented. A typical practice reclassifies roughly 26–38% of building basis, more when imaging and clinical equipment is documented.
Is medical gas piping (oxygen, vacuum, nitrous) 5-year property?
Generally yes. Medical-gas distribution — oxygen, vacuum, medical air, and nitrous-oxide piping — serves identifiable specialty medical equipment rather than the building's general systems, so it is typically depreciated over 5 years rather than 39. The same treatment applies to specialty clinical plumbing such as scrub sinks, hand-wash stations, and eyewash. Classification of any specific asset depends on its facts and is confirmed in the study.
Is exam-room casework 5-year property?
Yes, when it is specialty trade-fixture casework — sink cabinets, procedure counters, and built-in clinical millwork that is removable on a practice turnover. It serves the clinical function rather than the base building, so it is generally 5-year personal property. Standard break-room or generic cabinetry may stay with the building; the study draws that line on the facts.
Is imaging equipment like a CBCT or X-ray 5-year property?
The equipment itself, when you own it and it is documented, books as 5/7-year personal property and carves out of the building basis. The dedicated MEP that serves it — the conditioned power, cooling, structural reinforcement, and ceiling mounts for an imaging suite — is also 5-year property because it serves identifiable medical equipment. It is captured only when the imaging suite and equipment are actually present and documented.
I lease my office and paid for the build-out — does it still apply?
Yes, and the result is often even stronger. A tenant who funded the clinical build-out depreciates that investment, and because there is no land or 39-year building shell to strip out, a medical build-out reclassifies far more of its cost. That is handled as a tenant-improvement study on your build-out basis — see our medical/dental tenant-improvement page.
How much does a medical or dental office cost segregation study cost?
Medical and dental offices are priced as standard commercial property: from $1,995 for a sub-$1M basis and $3,295 for a typical $1M–$3M practice, delivered as a CPA-ready PDF in under an hour. No site visit required. Traditional firms charge $10,000–$30,000 and take four to six weeks.
Does this work for dental, orthodontic, dermatology, surgery centers, and urgent care?
Yes. The engineering follows the clinical fit-out, not the specialty. Dental and orthodontic offices are dense with operatory casework, panoramic and CBCT imaging power, and compressed air and vacuum; surgery centers and dermatology add procedure-room MEP, medical gas, and sterilization; urgent care carries exam casework, imaging, and a small lab. Each is captured from what is actually present and documented.
I bought my practice or building years ago — is it too late?
No. A lookback (catch-up) study lets you claim the depreciation you missed in prior years without amending old returns. Your CPA files a Form 3115 with your current-year return under the IRS automatic-consent procedures, and the cumulative missed depreciation flows through in a single year.
Is 100% bonus depreciation still available for medical-office owners?
Yes. The One Big Beautiful Bill Act made 100% bonus depreciation permanent for property placed in service on or after January 20, 2025, and for 2026 and beyond. (Property placed in service January 1–19, 2025 is at 40%.) Every dollar reclassified into 5-, 7-, or 15-year property is fully deductible in the year of acquisition or build-out.
