Auto Lease

How Auto Lease Payments Are Calculated

A lease payment is built from two separate charges: a depreciation fee for the vehicle’s value lost over the lease, and a finance fee (similar to interest) on the amount financed. Enter the vehicle price, your down payment, the residual value (what the car is expected to be worth at lease-end, as a percent of its price), the lease term, and the APR, and this calculator returns your estimated monthly payment.

Unlike buying, a lease payment doesn’t cover the vehicle’s full price — only the portion of value it’s expected to lose while you’re driving it, plus a financing charge. That’s why a shorter lease or a higher residual value (meaning the car holds its value well) usually means a lower payment.

The Formula

$$\vF{\text{Residual Value}} = \vA{\text{Vehicle Price}} \times (\vB{\text{Residual Percent}} \div 100)$$ $$\vG{\text{Depreciation Fee}} = \frac{\vA{\text{Vehicle Price}} - \vE{\text{Down Payment}} - \vF{\text{Residual Value}}}{\vC{\text{Lease Term}}}$$

$\vH{\text{Finance Fee}} = (\vA{\text{Vehicle Price}} - \vE{\text{Down Payment}} + \vF{\text{Residual Value}}) \times \vD{\text{Money Factor}}$, where $\vD{\text{Money Factor}} = \text{APR} \div 100 \div 2400$ — the standard conversion between the two ways lease financing cost is quoted.

$$\text{Monthly Payment} = (\vG{\text{Depreciation Fee}} + \vH{\text{Finance Fee}}) \times (1 + \text{Sales Tax Rate})$$

Key Factors to Consider

• A lease has a mileage limit, and going over it costs extra. Most leases include an annual mileage allowance (commonly 10,000-15,000 miles/year) with a per-mile overage fee charged at lease-end if you exceed it — if you drive more than average, factor that into whether leasing or buying makes more sense, or negotiate a higher mileage allowance upfront.
• Wear-and-tear charges at lease-end are a real, separate cost. Beyond mileage, leasing companies typically charge for damage beyond “normal wear and tear” when the vehicle is returned — this calculator’s monthly payment doesn’t include any potential end-of-lease charges.
• A capitalized cost reduction (your down payment) lowers the payment but doesn’t build equity. Unlike a loan down payment, money put down on a lease is essentially spent, not building ownership stake, since you don’t own the vehicle at the end of a standard lease.
• An early lease termination is usually expensive. Ending a lease before its term is up typically involves a substantial early-termination penalty — leases work best when you’re reasonably confident you’ll keep the vehicle for the full term.

Worked Example

A $30,000 vehicle, $2,000 down, 55% residual value, a 36-month term, 6% APR, and 6% monthly sales tax:

1. Residual value: $\vA{\$30,000} \times 55\% = \vF{\$16,500}$.
2. Depreciation fee: $(\vA{\$30,000} - \vE{\$2,000} - \vF{\$16,500}) \div \vC{36} \approx \vG{\$319.44}\text{/month}$.
3. Money factor: $6 \div 100 \div 2400 = \vD{0.000025}$.
4. Finance fee: $(\$28,000 + \vF{\$16,500}) \times \vD{0.000025} \approx \vH{\$1.11}\text{/month}$.
5. Monthly payment before tax: $\vG{\$319.44} + \vH{\$1.11} \approx \$320.56$.
6. With 6% tax: $\$320.56 \times 1.06 \approx \$339.79\text{/month}$.

Common Mistakes

• Comparing lease offers by monthly payment alone. Two leases with the same monthly payment can have very different total costs once you factor in the down payment (capitalized cost reduction), any dealer fees rolled into the deal, and what happens at lease-end — always compare the full cost of the lease, not just the number on the sticker.
• Underestimating how much a small residual-value difference changes the payment. Because the depreciation fee is the vehicle’s price minus its residual value spread over the term, even a few percentage points of difference in residual value assumption between two vehicles or offers can shift the payment noticeably — it’s worth asking what residual value a quote is actually using.
• Not tracking actual mileage against the lease’s annual allowance. Overage fees are charged per mile at lease-end, and they add up quietly over months of driving more than planned — a mid-lease check-in against your odometer can catch this before it becomes an expensive surprise.
• Assuming a down payment on a lease works like one on a loan. A larger down payment lowers the monthly payment the same way it would on a loan, but it doesn’t build any ownership stake — if the vehicle is totaled or stolen early in the lease, that money is usually gone (gap insurance can help cover this, similar to how it works on a loan with little money down).

Useful to Know

At the end of a standard lease, you typically have three options: return the vehicle, buy it at its predetermined residual value (the same figure this calculator uses to size your payment), or lease or finance a new vehicle. Buying at lease-end can make sense if the vehicle is worth more on the used market than its residual value, or if you’ve maintained it well and want to keep it — it’s worth checking the vehicle’s real resale value against the buyout price stated in your lease contract before deciding. Whichever option you choose, the lease-end inspection for wear-and-tear charges (see Key Factors above) happens regardless, unless you’re buying the vehicle outright.