Dental Office Cost Segregation: Equipment, Utilities and QIP
By AE Tax Advisors · Published 2026-08-10 · Updated November 8, 2026.
A dental-office project can contain equipment, building systems and interior improvements with different tax treatment. Reconcile the construction and equipment schedules before projecting a first-year deduction.
Identify equipment and its acquisition costs
List chairs, imaging equipment, sterilization units, computers, cabinetry and other assets with invoices and service dates. Review the applicable classification for each item. Do not assume every purchased or installed asset has the same recovery period.
Explain dedicated utility functions
Trace water, vacuum, compressed air, power and data runs to their actual uses. Distinguish equipment-serving systems from general building utilities, and allocate shared costs where supported. The study should explain its conclusions using plans and evidence.
Test qualified improvement property separately
QIP generally concerns qualifying interior improvements made by the taxpayer to an existing nonresidential building. Enlargements, elevators or escalators and the internal structural framework are excluded. An interior location or a leasehold label alone does not establish QIP treatment.
Even a properly classified asset needs a separate bonus-eligibility review using acquisition and service dates, elections and applicable law. Improvements acquired as part of a building purchase do not automatically qualify as improvements made by that taxpayer.
Reconcile owner, tenant and prior schedules
Confirm who paid for and owns the improvements under the lease. Compare the proposed classifications with prior depreciation and determine whether an accounting-method change or other correction is appropriate. A lookback study does not automatically produce an immediately deductible adjustment.
Review the practice owner's return
Material participation, entity basis, at-risk amounts and other limitations remain relevant. If the property is separately owned and rented to the practice, analyze that arrangement as well. Keep records supporting both the deduction and later disposition.
Book a Cost Seg Discovery Call with the lease, plans, invoices and depreciation schedules.
Frequently Asked Questions
Does all interior construction qualify as QIP?
No. The definition, taxpayer-made improvement requirement and statutory exclusions must be tested.
Does every dental-office study produce a current refund?
No. Eligibility, correction procedure, prior deductions and loss limitations determine the result.
Sources and review notes
Reviewed November 8, 2026 by AE Tax Advisors. Examples are illustrative; apply the rules to the relevant tax year and records. See our editorial policy.