Cost Segregation · Brief · Working level
Cost segregation for gas stations and convenience stores
A qualifying retail motor fuels outlet depreciates its entire building over 15 years under Section 168(e)(3)(E)(iii) — no other building class gets that. Add canopies, tanks, and dispensers, and gas stations reclassify more than almost any retail asset.
Gas stations hold a statutory privilege no other building enjoys: a qualifying "retail motor fuels outlet" is 15-year property under Section 168(e)(3)(E)(iii) — the whole building, at a recovery period other owners need an engineering study to reach for a fraction of their basis. Layer the fuel system (5-year), canopies, and site work on top, and a qualifying station can end up with essentially no 39-year property at all.
The 15-year building rule
Section 168(e)(3)(E)(iii) assigns 15-year status to "any Section 1250 property which is a retail motor fuels outlet (whether or not food or other convenience items are sold at the outlet)." The IRS's operating tests, developed after the statutory fix in the 1990s, qualify a property that meets any one of:
- the building is 1,400 square feet or less;
- 50% or more of gross revenues are from petroleum sales; or
- 50% or more of floor space is devoted to petroleum marketing (including related uses).
A classic pump-and-kiosk site qualifies on size alone. A modern 4,500-square-foot c-store with strong fuel volume usually qualifies on revenue. The properties at risk are large travel centers and food-forward formats, where in-store and food-service revenue can push petroleum below half — and floor space almost certainly does. The test is applied to the facts; a study should document revenue mix in the file, because the difference is the entire building at 15 years versus 39. See the general framework in asset classes and recovery periods and Pub 946.
Everything else on the site
Whether or not the building qualifies, the rest of the site segregates aggressively. Petroleum marketing assets fall in MACRS class 57.1 (5-year), and the Cost Segregation Audit Techniques Guide treats the fuel system as personal property without much argument.
Illustrative allocation for a $4M qualifying station and c-store, land excluded:
| Component | Class | Share of basis |
|---|---|---|
| USTs, piping, dispensers, fuel POS | 5-year §1245 (class 57.1) | 18% |
| Coolers, food service, store equipment, signage | 5-year §1245 | 12% |
| Pump canopies and lighting | 5- or 15-year | 8% |
| Paving, curbs, landscaping, yard lighting | 15-year land improvement | 12% |
| Store building (qualifying retail motor fuels outlet) | 15-year | 50% |
Illustrative only. On a qualifying site, 100% of basis lands at 15 years or shorter — and because the OBBBA restored 100% bonus depreciation for property acquired after January 19, 2025, and bonus reaches property with recovery periods of 20 years or less, a qualifying station's entire depreciable basis can be bonus-eligible in year one. Few asset classes can say that.
The trap: assuming qualification travels
The 15-year classification belongs to the property's use, not the industry. Owners expand the store, add a quick-service restaurant, or lease space to a franchisee — and quietly fail all three tests for the enlarged building. The addition is not a retail motor fuels outlet, and a large remodel can flip the whole building's character going forward. Before capitalizing an expansion at 15 years by habit, rerun the tests; misclassifying a 39-year building as 15-year is an accounting-method error that surfaces badly on exam or at sale. A study at acquisition that documents the qualification basis is the cheap insurance.
Frequently asked questions
- Is a gas station building 15-year or 39-year property?
- A qualifying retail motor fuels outlet is 15-year property under Section 168(e)(3)(E)(iii) — the building itself, not just its components. To qualify, the property must be 1,400 square feet or less, or derive 50% or more of gross revenues from petroleum sales, or devote 50% or more of floor space to petroleum marketing. A large-format convenience store that fails all three tests is ordinary 39-year nonresidential real property.
- Are underground storage tanks and fuel dispensers personal property?
- Yes. Underground storage tanks, piping, dispensers, and point-of-sale fuel equipment are 5-year Section 1245 personal property under MACRS asset class 57.1 for petroleum marketing. Canopies over the pump islands, if not qualifying as personal property outright, are at worst land improvements or part of a 15-year retail motor fuels outlet — never 39-year.
- Does a c-store with heavy food service still qualify for 15-year treatment?
- Only if it passes one of the three tests. A travel-center format with large food service can fail the 50%-of-revenue and 50%-of-floor-space tests, and buildings over 1,400 square feet cannot use the size test. In that case the building reverts to 39-year property, though a cost segregation study still reclassifies fuel equipment, kitchen equipment, refrigeration, and site work into 5- and 15-year classes.