Asset Depreciation Calculator
Calculate and compare Straight-Line and Accelerated depreciation methods based on standard MACRS lifecycles.
Asset Details
Estimated value at end of useful life.
Depreciation Methods
Straight-Line
StandardEvenly spreads the deductible cost over the useful life of the asset.
Accelerated (DDB)
Front-LoadedHigher deductions in early years for fast-obsolescence items.
Note: Under MACRS, the Half-Year Convention usually applies, meaning you may only deduct 50% of the calculated amount in the first year regardless of the purchase date. Consult a tax professional for exact filing amounts.
Common Asset Life Cycles (MACRS)
| 3-Year Property | Specialized tools, certain manufacturing equipment, and racehorses. |
| 5-Year Property | Computers, printers, copiers, vehicles (cars, trucks), and office machinery. |
| 7-Year Property | Office furniture, fixtures, and standard machinery. |
| 10-Year Property | Specific manufacturing equipment, vessels, and barge equipment. |
| 15-Year Property | Specialized improvements (fences, paving) and certain utility infrastructure. |
| 27.5-Year Property | Residential rental property. |
Typical Equipment Lifespans
Manufacturing
7–15 years
Medical Equip
5–10 years
Office Equip
3–7 years
Vehicles & Lifts
5–7 years
Key Factors and Concepts
1 Useful Life
The expected period an asset can produce income (e.g., computers are usually designated around 5 years).
2 Straight-Line Method
Evenly spreads the cost over the useful life.
(Cost - Salvage Value) / Useful Life
3 Accelerated Method (DDB)
Higher deductions in early years for fast-obsolescence items like IT equipment. Calculated as a percentage of the remaining book value.
4 Half-Year Convention
Most property is treated as placed in service in the middle of the year, allowing for 6 months of depreciation in the first year regardless of the exact date.
★ Bonus Depreciation
Allows immediate 100% deduction for qualified property acquired and placed in service after January 19, 2025.