MACRS Depreciation Methods: Recovery Periods, Conventions, and Listed Property Rules
Depreciation is the mechanism that converts the cost of a business asset into tax deductions over time. Under IRC 168, the Modified Accelerated Cost Recovery System (MACRS) is the default depreciation method for most tangible property placed in service after 1986. MACRS is more generous than straight-line depreciation because it front-loads deductions using declining balance methods, giving the business owner larger deductions in the early years of an asset’s life. Layered on top of MACRS are two immediate expensing provisions: Section 179 (up to $2,500,000 for 2025, $2,560,000 for 2026) and 100% bonus depreciation (restored under OBBBA for property acquired after January 19, 2025, with no scheduled end date). The interplay between these three mechanisms (Section 179, bonus depreciation, and regular MACRS) determines the total depreciation deduction for any given asset.
MACRS recovery periods (IRC 168(c)):
| Property Class | Recovery Period | Examples |
|---|---|---|
| 3-year | 3 years | Tractor units, racehorses over 2 years old, qualified rent-to-own property |
| 5-year | 5 years | Automobiles, light trucks, computers, office equipment, appliances, carpet, furniture used in rental property |
| 7-year | 7 years | Office furniture, fixtures, agricultural machinery, any property without a designated class |
| 10-year | 10 years | Water transportation equipment, single-purpose agricultural structures |
| 15-year | 15 years | Qualified improvement property (QIP), land improvements (sidewalks, fences, parking lots, landscaping), gas station canopies |
| 20-year | 20 years | Farm buildings, municipal sewers |
| 25-year | 25 years | Water utility property |
| 27.5-year | 27.5 years | Residential rental property |
| 39-year | 39 years | Nonresidential real property (commercial buildings) |
Depreciation methods under MACRS:
| Property Class | Method | Convention |
|---|---|---|
| 3, 5, 7, 10-year | 200% declining balance, switching to straight-line | Half-year (or mid-quarter if 40% rule triggered) |
| 15, 20-year | 150% declining balance, switching to straight-line | Half-year (or mid-quarter) |
| 27.5, 39-year | Straight-line | Mid-month |
| ADS (any class) | Straight-line | Half-year or mid-month |
Half-year vs. mid-quarter convention:
| Convention | When It Applies | Effect |
|---|---|---|
| Half-year | Default for personal property | Asset treated as placed in service at midpoint of year (6 months of depreciation in Year 1) |
| Mid-quarter | When more than 40% of personal property is placed in service in Q4 | Each asset treated as placed in service at midpoint of the quarter it was actually placed in service |
| Mid-month | Real property (27.5 and 39-year) | Asset treated as placed in service at midpoint of the month |
How do you choose the right depreciation method?
When does ADS rule out both Section 179 and bonus?
Whenever the reason for ADS also blocks the write-offs. Listed property like a passenger car used 50% or less for business gets no Section 179 and no bonus, and goes on ADS straight line. Tangible property used mostly outside the US must use ADS, which rules out bonus, and it’s excluded from Section 179 as well.
A real estate business that elects out of the business interest limit is the other common case. It must use ADS for its buildings and its qualified improvement property, so QIP loses bonus. Outside these cases you do get a choice, and it works differently for each tool: Section 179 is elected asset by asset, while bonus can only be turned off for a whole class. Buildings never had the choice, since 27.5- and 39-year property is outside bonus.
Can you use bonus on one asset and regular MACRS on another?
Not asset by asset within the same class. The election out of bonus covers the whole class, such as all 5-year property placed in service that year, and it can be revoked only with IRS consent. To expense one 5-year asset and depreciate another, use Section 179 on the first and elect out of bonus for the class.
In the example above, that could mean Section 179 on the delivery van and regular 5-year MACRS on the computer equipment, at 20% in year one under the half-year convention. If the van is rated at 6,000 lb or less, the vehicle caps still apply. Section 179 comes off first, then bonus, then regular MACRS. If you’re managing a loss, the excess business loss threshold is $313,000 ($626,000 joint) for 2025 and $256,000 ($512,000 joint) for 2026.
- Construction Equipment Depreciation: Section 179 vs Bonus Depreciation vs MACRS
- Farm Equipment Depreciation: Section 179, Bonus Depreciation, and MACRS
- MACRS Depreciation: Recovery Periods, Conventions, and Methods for Business Assets
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Yarik Yarosh, CPA. "MACRS Depreciation Methods: Recovery Periods, Conventions, and Listed Property Rules." Blue Cloud CPA, September 5, 2026, updated September 23, 2026. https://bluecloudcpa.com/guides/small-business-depreciation-macrs-ads-methods-listed-property
This guide is general information, not tax advice for your specific situation. Which points apply, and how, depends on your facts.