Car depreciation is calculated using compound depreciation: Current Value = Purchase Price × (1 - Depreciation Rate)^Age. Depreciation rates vary by vehicle type: Luxury (20%), Standard (15%), Economy (12%), Trucks (18%) per year.
- Formula: Current Value = Purchase Price × (1 – Rate)^Years
- $30,000 standard car after 3 years: $30,000 × 0.85³ = $18,424
- $50,000 luxury car after 3 years: $50,000 × 0.80³ = $25,600
- The steepest depreciation hit comes in year 1 (15–25% value lost immediately)
| Vehicle Type | Annual Rate | Value After 3 yr | Value After 5 yr |
|---|---|---|---|
| Economy (12%/yr) | 12% | 68.1% | 52.8% |
| Standard (15%/yr) | 15% | 61.4% | 44.4% |
| Truck/SUV (18%/yr) | 18% | 55.1% | 37.1% |
| Luxury (20%/yr) | 20% | 51.2% | 32.8% |



