Your monthly lease payment is a constant number. But inside that payment, the split between depreciation and finance charge changes slightly every single month. Understanding this gives you powerful insight into how much you actually owe at any point in your lease — and what it costs to exit early.
The Two Components of Every Lease Payment
Every monthly lease payment is made up of exactly two parts:
- Depreciation Component: The portion of the vehicle's value you "consume" each month. This is calculated as (Net Cap Cost − Residual Value) ÷ Lease Term. It's constant — the same every month.
- Finance Charge Component: The interest you pay on the outstanding lease balance each month. This is calculated as (Current Balance + Residual Value) × Money Factor. It decreases slightly each month as the balance falls.
Why this matters: Unlike a car loan where your balance falls quickly in the first years, a lease balance falls slowly and evenly. This has direct implications for early termination costs, equity position, and your financial exposure throughout the lease.
The Lease Payment Formula
Total Payment = Base Payment × (1 + Sales Tax Rate)
Sample Lease Amortization Schedule
Let's walk through a real example. Assume:
- Net Cap Cost: $33,000
- Residual Value: $18,150 (55% of $33,000)
- Money Factor: 0.00125 (≈ 3% APR)
- Lease Term: 36 months
Monthly Depreciation = ($33,000 − $18,150) ÷ 36 = $412.50/month
Note: The finance charge is technically constant at (Net Cap Cost + Residual) × MF for a simplified lease calculation, but in a true amortized lease, the balance changes. Below is a simplified representative schedule showing the first few, middle, and final months:
| Month | Opening Balance | Depreciation | Finance Charge | Base Payment | Closing Balance |
|---|---|---|---|---|---|
| 1 | $33,000 | $412.50 | $63.94 | $476.44 | $32,587.50 |
| 2 | $32,587.50 | $412.50 | $63.43 | $475.93 | $32,175.00 |
| 3 | $32,175.00 | $412.50 | $62.92 | $475.42 | $31,762.50 |
| 6 | $30,525.00 | $412.50 | $60.84 | $473.34 | $30,112.50 |
| 12 | $28,050.00 | $412.50 | $57.69 | $470.19 | $27,637.50 |
| 18 | $25,575.00 | $412.50 | $54.59 | $467.09 | $25,162.50 |
| 24 | $23,100.00 | $412.50 | $51.44 | $463.94 | $22,687.50 |
| 30 | $20,625.00 | $412.50 | $48.28 | $460.78 | $20,212.50 |
| 35 | $18,562.50 | $412.50 | $45.89 | $458.39 | $18,150.00 |
| 36 | $18,562.50 | $412.50 | $45.89 | $458.39 | $18,150.00 ✓ |
| Total (36 months) | $14,850 | $1,953 | $16,803 | — | |
Notice: the balance at month 36 equals exactly the residual value ($18,150). This is the "buy" price at lease end — you can purchase the car for this amount.
Why Lease Amortization Differs from Loan Amortization
In a traditional car loan, payments are heavily front-loaded toward interest early in the loan term (like a mortgage). The interest portion decreases sharply as principal is paid down. In a lease, the structure is simpler:
- Depreciation is linear — you pay the same amount toward the car's loss in value every single month
- Finance charge decreases slightly — but not dramatically, because the residual value "floor" keeps the calculation relatively stable
- Your total payment barely changes from month 1 to month 36 — unlike a loan where the payment never changes but the interest/principal ratio shifts dramatically
Key takeaway: Because lease amortization is nearly linear, you have very little "equity" in a leased car at any point during the lease. If you try to exit early in month 12, you'll likely owe about 2/3 of the remaining lease payments — which is why early termination is expensive.
How Amortization Affects Early Termination
When you exit a lease early, you typically owe:
- All remaining lease payments (discounted slightly)
- An early termination fee ($200–$500 typically)
- Minus: the car's current market value (if sold by the leasing company)
Because lease balances fall slowly (linear depreciation), and real car values can fall faster, exiting early often means you owe more than the car is worth — a situation called being "upside down."
Use our Early Termination Calculator to estimate your exact cost.
Practical Uses of Your Amortization Schedule
- Verify dealer math: Request an amortization schedule from your leasing company and verify it against our calculator
- Plan early exit: See exactly what you'd owe if you needed to exit in month 12, 18, or 24
- Decide whether to buy at lease end: The residual value on the schedule is your purchase option price
- Understand GAP exposure: Early months = highest GAP risk (largest difference between balance and market value)
📊 Generate Your Full Amortization Schedule
Use our free Lease Amortization Calculator to generate a complete month-by-month schedule for any lease.
Use Amortization Calculator →