A car lease is a financing arrangement that lets you drive a new vehicle for a fixed period without purchasing it outright. Instead of paying the entire value of the car, you pay only for the depreciation that occurs during the lease term plus interest and fees. At the end of the contract, you return the vehicle to the leasing company or exercise a purchase option at the predetermined residual value.

Leasing works because vehicles lose value over time. A brand-new car typically depreciates 15 to 25 percent in the first year alone, and roughly 40 to 50 percent over three years. When you lease, the monthly payment covers this loss in value, known as the depreciation charge, along with a finance charge (often called the rent charge) that represents the interest cost on the capital tied up in the vehicle.

Key Lease Terms Explained

• Capitalized Cost (Cap Cost): The negotiated price of the vehicle, equivalent to the purchase price in a traditional car deal. A lower cap cost directly reduces your monthly payment. Always negotiate the selling price just as aggressively as you would if you were buying the car. Dealer fees, extended warranties, and accessories added to the cap cost will increase your payment.
• Residual Value: The projected value of the vehicle at lease end, set by the leasing company based on historical depreciation data, brand reputation, and market demand. It is expressed as a percentage of the MSRP. A vehicle with a 58% residual value after 36 months retains more value than one with a 45% residual, resulting in significantly lower depreciation charges and therefore lower payments.
• Money Factor: The interest component of a lease, expressed as a small decimal such as 0.00125. To convert a money factor to an equivalent annual percentage rate (APR), multiply by 2,400. For example, a money factor of 0.00188 translates to an APR of approximately 4.5%. Unlike the cap cost, the money factor is often non-negotiable unless you have excellent credit, though dealerships may attempt to mark it up above the base rate from the leasing company.
• Cap Cost Reduction: Any down payment, trade-in equity, or rebates that reduce the capitalized cost. While a larger cap cost reduction lowers monthly payments, financial advisors often recommend putting minimal money down on a lease. If the car is totaled in an accident, gap insurance covers the remaining lease balance but does not reimburse your down payment.
• Lease Structure: A standard lease contract specifies the term length (months), mileage allowance, money factor, residual value, and any acquisition or disposition fees. Most leases run for 24, 36, or 48 months, with 36 months being the most common because it balances monthly cost with warranty coverage.

Residual values vary by vehicle type, brand, and lease term. The table below shows approximate average residual values for different vehicle categories and common lease durations. These figures are industry averages and will differ by make, model, and model year.

Note: Trucks and SUVs typically retain the highest residual values due to strong demand. Electric vehicles have seen improving residual values in recent years as the used EV market matures. Always check the specific residual value offered by the leasing company for the exact model and trim you are considering.

Every lease payment consists of three components: the depreciation charge, the finance charge (rent charge), and sales tax. Here is the step-by-step formula followed by three worked examples so you can verify any lease offer.

1. Adjusted Cap Cost = Negotiated Price - Down Payment - Trade-in Value
2. Residual Amount = MSRP x Residual Percentage
3. Monthly Depreciation = (Adjusted Cap Cost - Residual Amount) / Lease Term
4. Money Factor = APR / 2,400
5. Monthly Finance Charge = (Adjusted Cap Cost + Residual Amount) x Money Factor
6. Pre-Tax Payment = Monthly Depreciation + Monthly Finance Charge
7. Monthly Payment = Pre-Tax Payment + (Pre-Tax Payment x Sales Tax Rate)

Example 1: Economy Sedan (36-Month Lease)

Example 2: Mid-Size SUV (36-Month Lease)

Example 3: Luxury Vehicle (24-Month Lease)

These examples illustrate how residual value and money factor significantly influence the monthly payment. A vehicle with a high residual and a low money factor will always produce the most affordable lease. Use the calculator above to model your own scenario and compare different offers side by side before committing to a lease agreement.