📉 MACRS Depreciation Calculator

Calculate annual depreciation for business assets using IRS MACRS (Modified Accelerated Cost Recovery System) rules

Asset Information

Asset Cost Basis ($)

Recovery Period

Convention

Depreciation System

GDS: General Depreciation System, uses 200% declining balance (3/5/7/10yr) or 150% DB (15/20yr), switching to straight-line when optimal
ADS: Alternative Depreciation System, uses straight-line method with longer recovery periods
Half-Year Convention: Assumes assets placed in service mid-year; first and last year each get half-year depreciation
Mid-Quarter Convention: Applies if >40% of assets placed in service in Q4
Mid-Month Convention: Applies to real property (27.5yr / 39yr)