Your Client Is Buying a Business. Have They Considered Cost Segregation?

Why It Matters

Early depreciation planning preserves tax value and prevents costly allocation lock‑ins, directly impacting deal economics and cash‑flow projections.

Key Takeaways

• Cost segregation can turn long‑term depreciation into immediate cash flow
• Section 168(k) allows 100% first‑year bonus depreciation for qualifying assets after 2025
• Purchase‑agreement language must preserve allocation flexibility for post‑close depreciation planning
• Qualified Production Property gives 100% deduction, limited to integral production use
• Form 8594 filing locks depreciation allocations; late changes require Form 3115

Pulse Analysis

Depreciation has risen from a niche tax tactic to a central lever in M&A due diligence. By dissecting a building’s components, cost segregation reassigns assets to shorter recovery periods, unlocking the 100% bonus depreciation now available under Section 168(k). This shift can transform years of tax sheltering into a single‑year cash‑flow boost, dramatically altering the net present value of a transaction. Advisors who integrate these calculations before signing can model realistic after‑tax returns and negotiate purchase‑price allocations that reflect the true tax benefit.

The legal framework reinforces the need for proactive planning. The Peco Foods decision showed that once allocation schedules are fixed in Form 8594, a post‑close cost‑seg study cannot override them. Consequently, the language of the purchase agreement becomes a de‑facto depreciation strategy. Parties must ensure that asset definitions remain flexible enough to accommodate component‑level reclassification, and they should be prepared to file Form 3115 if a method change is required after closing. Properly timed elections—both for bonus depreciation and for Qualified Production Property—must be made on the appropriate tax return to capture the full benefit.

For manufacturers and other production‑oriented buyers, QPP adds another layer of opportunity. The temporary 100% special depreciation allowance applies only to property used as an integral part of the qualified production activity, demanding precise mapping of space usage. Timing windows are narrow: construction after Jan. 19, 2025, placement in service before Jan. 1, 2031, and strict MACRS eligibility. Missing any threshold eliminates the deduction. By aligning acquisition documents, physical use plans, and tax elections early, advisors safeguard significant tax savings and avoid the costly retrofits that arise when depreciation strategy is treated as an after‑thought.