Gas Station and C-Store NNN Depreciation: The 15-Year Building Tests

| by the Investment Grade Team

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Gas stations and convenience stores have a classification rule that most NNN property types do not: if a property qualifies as a retail motor fuels outlet under IRS rules, the building itself can be 15-year property instead of 39-year nonresidential real property. Fifteen-year property is eligible for 100% bonus depreciation for property acquired after January 19, 2025, so for a buyer who owns a qualifying building, most of the depreciable basis can be deducted in the first year. Whether a given property qualifies, and whether the buyer can use the deduction, are the questions that matter.

The IRS Tests for a Retail Motor Fuels Outlet

Retail motor fuels outlets are included in asset class 57.1 (15-year property). Under long-standing IRS guidance, a building is treated as a retail motor fuels outlet if it meets any one of these tests:

Test What It Requires Practical Note
Revenue test 50% or more of the property’s gross revenues come from the sale of petroleum products Fuel is usually a large share of revenue at fuel-selling stores, but food service growth can change the mix; the test uses the operator’s sales, so the buyer needs that data
Floor space test 50% or more of the building’s floor space is devoted to petroleum marketing sales, as the IRS defines it Measure under the IRS definition with a tax specialist; do not substitute canopy or site area for building floor space
Small building test The building is 1,400 square feet or less Applies regardless of revenue mix

Summary only. Have a tax specialist document which test is met and keep the support. The tests apply to the building; site improvements are generally 15-year land improvements regardless.

Two conditions before any of this matters. First, the buyer must own the building. Many convenience store deals are ground leases (for example, about 50 of the 59 Wawa listings we track as of October 4, 2026), where the investor owns only land, which cannot be depreciated. Second, fuel tanks, dispensers and canopies are often owned by the operator or its fuel supplier, so they are not the landlord’s to depreciate unless they convey.

When the 15-Year Building Treatment Applies

Scenario 15-Year Building? What the Owner Can Depreciate
Fee simple station with a store of 1,400 sq ft or less Yes (small building test) Building and owned site improvements as 15-year property
Fee simple station; fuel is 50% or more of gross revenue Yes (revenue test) Building and owned site improvements as 15-year property
Large format store where food and merchandise exceed half of revenue and floor space Likely no Building is 39-year; a cost segregation study may still reclassify site work and some components
Convenience store with no fuel sales No Building is 39-year; site work and some components may be shorter-lived
Ground lease (land only) Not applicable Nothing; land is not depreciable

Illustrative Example: $4 Million Fee Simple Fuel Station

The example shows the mechanics under stated assumptions. It is not an estimate for any real property.

Item Amount Assumption
Purchase price $4,000,000 Fee simple; investor owns the building and site improvements
Land $800,000 20% of price, not depreciable
Depreciable basis $3,200,000 Building and site improvements; fuel equipment owned by the operator is excluded
15-year building qualification Yes Revenue test documented with the operator’s sales data
Year 1 bonus depreciation $3,200,000 100% bonus, property acquired after Jan. 19, 2025
Annual rent (NOI) $210,000 5.25% cap rate
Maximum federal tax value of the deduction Up to ~$1,184,000 Only if the investor can use the full deduction at a 37% rate

The tax value is a ceiling, not cash returned. In this example the deduction is about 15 times the property’s annual rent. Because NNN rental activity is generally passive, the deduction first offsets the property’s own rent and other passive income; the remaining loss is suspended until the investor has more passive income or sells the property, unless the investor qualifies as a real estate professional and materially participates. Bonus depreciation is also generally recaptured, largely at ordinary income rates, on a taxable sale, unless the gain is deferred through a 1031 exchange into real property. State tax treatment may differ.

Convenience Store Tenants: Credit and Pricing

Depreciation does not change who pays the rent. Here is how the major convenience store tenants compare on credit and on asking cap rates in our listings:

Tenant S&P / Moody’s Status Median Asking Cap (Oct. 4, 2026) Notes
7-Eleven A-/Baa2 investment grade 5.25% (177 listings) Mostly fee simple in our listings
Circle K BBB+/Baa1 investment grade 5.25% (40 listings) Parent Alimentation Couche-Tard; confirm guarantor
Casey’s Baa3 investment grade Too few listings Moody’s rated
Wawa Not rated not rated 5.00% (59 listings) Private; most listings are ground leases
Sheetz Not rated not rated 5.28% (16 listings) Private; many ground leases
QuikTrip Not rated not rated 5.83% (8 listings) Private
Murphy USA BB+/Ba1 not investment grade 5.00% (9 listings) Below investment grade
Sunoco BB+/Ba1 not investment grade Too few listings Below investment grade

Ratings update from our ratings database. Cap rates are medians of active listings tracked by InvestmentGrade.com; asking cap rates are not closing cap rates. A rating applies to a lease only when the rated company is the tenant or guarantor; confirm in the lease.

Environmental Due Diligence

Fuel properties carry environmental risk from underground storage tanks. NNN leases typically assign environmental responsibility to the tenant during the term, but an owner can face residual liability if the tenant fails to perform or leaves. Standard diligence is a Phase I Environmental Site Assessment, with a Phase II (soil and groundwater sampling) if the Phase I finds recognized environmental conditions. Pollution legal liability insurance is available. A financially strong tenant improves the odds that remediation obligations are met, but it does not remove the owner’s exposure; review the lease’s environmental indemnity and the tank compliance records.

Using a Fuel Station in a 1031 Exchange

Fee simple fuel stations are popular 1031 replacement properties for investors who also want depreciation. Keep in mind that in an exchange the replacement property’s basis generally carries over from the property sold, which limits how much new bonus depreciation is available; model the combined result with a tax adviser before identifying properties. Quality new construction sells quickly, so begin identifying targets before the 45-day identification period starts. Current tenant credit profiles are in our tenant ratings database.

Frequently Asked Questions

Do all gas station NNN properties qualify for 100% bonus depreciation?

No. The building qualifies as 15-year property only if it meets one of the IRS retail motor fuels outlet tests: 50% or more of gross revenue from petroleum sales, 50% or more of floor space devoted to petroleum marketing sales, or a building of 1,400 square feet or less. The buyer must also own the building; ground leases offer no depreciation. Buildings that fail the tests are 39-year property, though site improvements and some components may still qualify for shorter lives.

Which convenience store tenants are investment grade?

Per our ratings database, 7-Eleven (A-/Baa2), Circle K parent Alimentation Couche-Tard (BBB+/Baa1) and Casey’s (Baa3) are rated investment grade. Murphy USA (BB+/Ba1) and Sunoco (BB+/Ba1) are rated below investment grade. Wawa, Sheetz and QuikTrip are privately held and not rated.

Will the first-year deduction reduce my taxes in the year I buy?

Only to the extent you can use it. NNN rental losses are generally passive and offset passive income; excess losses are carried forward unless you are a real estate professional who materially participates. Have a tax professional model your situation before relying on a first-year benefit.

What is the environmental risk of owning a gas station NNN property?

Underground storage tanks create potential soil and groundwater contamination liability. Diligence typically includes a Phase I Environmental Site Assessment and, if needed, Phase II testing. Leases usually assign environmental responsibility to the tenant, and pollution legal liability insurance is available, but the owner can still face residual exposure.

Targeting a C-store or gas station NNN acquisition? We source fee simple and ground lease fuel properties nationally and gather what your tax adviser needs to test the 15-year building rules: lease structure, building size, what conveys, and the tenant information available. Tell us your acquisition criteria →

Disclaimer: This content is for informational and educational purposes only and does not constitute tax, legal, or investment advice. Tax laws are complex, subject to change, and vary by jurisdiction. The IRS tests are summarized, and the example uses stated assumptions; neither should be relied upon for a specific decision. Every property, lease structure, revenue mix, and investor tax situation is different. Always consult a qualified CPA, tax attorney, environmental consultant, and cost segregation specialist before making acquisition decisions. InvestmentGrade.com and Investment Grade Income Property, LP do not provide tax advice.

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