Patios Cost Segregation: Classification evidence

Describe the physical facts that distinguish the equipment, site work, and building construction. A practical patios guide for rental owners preparing a cost segregation study.

Component evidence · Published October 9, 2026 · Stratum editorial team

Practical evidence guide. Classification, basis, and usable deductions require property-specific analysis. Scenarios are hypothetical.

Start with the actual patios

Paving and movable furnishings should be described separately. Confirm whether quoted area includes structural slabs or interior surfaces that do not perform the same function.

For this review, identify paving surface, subbase, drainage, building integration, and movable seating. The objective is to describe the property accurately enough that the analyst can distinguish separate assets and shared work. Record any difference between acquisition condition and the current installation.

Classification evidence workflow

A recovery period is a conclusion supported by an asset's use, construction, ownership, and applicable authority. It is not a feature supplied by a product's marketing name. Start by dividing the work into physical components, then ask whether each component serves the general building or a particular function. Permanence and attachment can matter, but one photograph showing a screw or a movable part is not a complete classification analysis.

Ask the provider for a description of the component and the technical reasoning behind material classifications. The reviewer should be able to connect the reasoning to the property's facts. If a system contains separately identified equipment and structural work, the explanation should show how those costs were separated. A generic percentage or a favorable asset label does not establish that separation.

Details that matter for patios

Record paved dimensions and note whether the surface is new construction, an overlay, or replacement of an existing area. Delivery of paving materials may not include excavation, base preparation, or drainage. Ask how those services are recorded in the contract. A patio can surround equipment without becoming part of that equipment's purchase cost. Do not use outdoor seating photographs to infer paving area. Where the paving connects to a structural slab, preserve plans or descriptions showing the boundary between the surfaces.

Evidence to collect for patios

Start with hardscape contract, material quantities, site plan, and installation photographs. Keep the original records and mark which portions of the component or project each document supports. An unexplained total should remain an open question rather than be divided into invented amounts.

FieldWhat to record
Component boundaryPaving surface, subbase, drainage, building integration, and movable seating
Primary recordsHardscape contract, material quantities, site plan, and installation photographs
Location and ownershipProperty address, room or site location, owner entity, and any shared or third-party use.
Cost trailInvoice or acquisition-allocation reference; include credits, separately recorded items, and the estimation method if costs are reconstructed.
TimelineAcquisition, installation, availability for intended use, and later changes; retain the record supporting each relevant date.

A hypothetical patios evidence problem

A contractor lays new patio paving while repairing the foundation-adjacent drainage.

The unresolved question is: Which physical feature in this installation supports separating the item from the surrounding building or site work? Give the reviewer the underlying records and identify the uncertainty explicitly. This example illustrates an evidence issue; it does not assign a tax life, estimate a deduction, or describe a completed Stratum client engagement.

Finish this review before implementation

Prepare an asset description that distinguishes the physical elements and request technical support for any material classification.

The study supplies property evidence and proposed classifications. The return analysis determines applicable depreciation methods, any bonus eligibility, loss limitations, state adjustments, and disposition consequences. Agree who resolves each outstanding issue and keep the accepted records with the final report.

References and scope

These references explain the underlying tax framework. The checklists and scenarios on this page are editorial tools for gathering evidence, not quotations or asset-specific rulings from the IRS. The audit guide is examination guidance, not an official pronouncement of law or certification of a provider. A return preparer must apply current authority to the particular property, taxpayer, and filing year.

Bring the evidence into a property review

Stratum documents the property. AE Tax Advisors can discuss how a study may fit your broader tax position. Confirm the engagement scope and filing responsibilities before work begins.

Discuss your property with AE Tax Advisors →