06/17/2026
A construction defect reserve is a balance-sheet liability for warranty work that hasn’t materialized yet. It funds punch-list items, warranty repairs under contract (1-year general, 2-year systems, 10-year structural typical), and discretionary callbacks that protect referrals.
GAAP and tax diverge. GAAP accrues the reserve against completion-period profit, but tax doesn’t allow the deduction until IRC §461(h) economic performance is met (repairs performed and paid). Accrual builders pay current-year tax on full project profit with warranty deductions landing later, while cash-basis builders deduct only when paid.
Sizing matters because of this timing. On a $2M project at 12% net, you pay current-year tax on the $240K, then need another $40K to $100K of warranty cash on top. Skipping the reserve doesn’t save tax; it compresses cash risk.
Builders hold the reserve through a separate warranty escrow funded at closeout, a sub-account inside operating cash with a covenant balance, an owner distribution reduction during the warranty period, or a “warranty payable” liability tied to a cash hold.
THE FIX:
Build the reserve into your closeout SOP. Project type drives the percentage (1-3% commercial, 1-3% standard residential, 2-5% custom or coastal).
Pick a reserve mechanism. Separate escrow is cleanest but costs flexibility; sub-account works for tighter cash discipline; distribution reduction is the lever for S-corp owners.
Track callbacks against the reserve in real time. Every warranty repair, material cost, and labor hour codes to the project’s warranty line.
Release excess to retained earnings at warranty close after confirming no open issues.
Coordinate with your CPA on the tax timing. The reserve manages cash; tax savings land when repairs are paid and §461(h) is met.
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This content is for educational purposes only. Every business is different. Before making any changes to your books, reach out to us for guidance specific to your situation.