Patios Cost Segregation: Acquisition allocation

Reconcile what transferred at closing before assigning cost to individual components. 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.

Acquisition allocation workflow

An acquisition study allocates an existing supported cost pool; it does not create additional basis merely by identifying more items. Begin with the purchase documents and the preparer's land and cost determinations. Identify furnishings sold separately, items retained by the seller, and components owned by someone else. A photograph taken before closing can show an item that was never transferred to the buyer.

Trace each separately valued item through the purchase allocation and the owner's asset schedule. An item included in a bill of sale may already be outside the building pool. For costs estimated from physical quantities, ask how the estimate is converted into an allocation of the acquisition basis. Do not add a current replacement price on top of the original purchase price as if it were a new expenditure.

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: Is any value for this item already included in a separate furnishings purchase or an existing asset schedule? 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

Build a purchase-allocation bridge that shows the item once, with its ownership and separately recorded costs visible.

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 →