How a Car Lease Works — and Where the Costs Hide
A car lease is essentially a long-term rental where you pay for the portion of the car's value you consume during the lease term. The monthly payment is driven by two factors: the depreciation amount (selling price minus residual value — the car's projected value at lease end) and the money factor (the lease's interest rate equivalent). A car with low depreciation and a high residual value produces a lower lease payment; a car that depreciates quickly produces a higher payment.
The money factor is the leasing equivalent of an interest rate but expressed as a small decimal (e.g., 0.00125). To convert to approximate APR, multiply by 2,400: 0.00125 times 2,400 = 3% APR equivalent. Dealers typically will not volunteer the money factor — ask specifically. Like mortgage points, a higher money factor increases your total lease cost even if the monthly payment looks attractive.
The true comparison for leasing versus buying requires looking at a full ownership cycle — typically 10+ years. Buyers who keep their cars after the loan is paid off have a period of zero payments while retaining the asset. Lessees always have a payment. The financial advantage of buying tends to grow with each additional year of ownership beyond the loan payoff. The advantage of leasing is access to a newer vehicle with warranty coverage and lower monthly payments in any given month.
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Enter the vehicle price, lease terms, money factor, and residual to see total cost, effective monthly cost of ownership, and the buying comparison.
Calculate My Lease CostHow to Evaluate a Lease Offer
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Get the four numbers that define the lease
Ask the dealer for: (1) cap cost (selling price after any discounts or cap cost reduction), (2) residual value (the car's projected worth at lease end, set by the manufacturer), (3) money factor (the finance rate), and (4) acquisition fee (typically $500-$1,000, often built into the payment). These four numbers fully determine your lease payment and true cost — refuse to evaluate a lease without them.
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Verify the money factor is not marked up
Manufacturers set a base money factor. Dealers can mark it up — just as they mark up loan APR above the buy rate. Research the current base money factor for your vehicle model and month on Edmunds Forums or similar resources. If the dealer's quoted money factor is significantly above the base, negotiate it down or convert the money factor to APR equivalent (multiply by 2,400) and compare to your bank pre-approval.
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Calculate total lease cost, not just monthly payment
Total lease cost = (monthly payment times number of months) plus cap cost reduction (down payment on a lease) plus acquisition fee plus disposition fee (typically $300-500 charged at lease end) plus estimated excess mileage penalties (if applicable). Compare this total to the total cost of buying the same vehicle over the same period (down payment plus all loan payments). The lease looks cheaper month-to-month but the full-period comparison often favors buying.
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Calculate your expected mileage against the allowance
Standard leases include 10,000-15,000 miles per year. Excess mileage costs $0.15-0.30 per mile at lease end. A driver who exceeds the mileage allowance by 3,000 miles over a 3-year lease pays $450-$900 at turn-in — a material cost that should be modeled before signing. Negotiate additional miles upfront at the contract rate ($0.10-0.15/mile) if you expect to exceed the allowance; this is always cheaper than paying at turn-in.
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Identify when leasing genuinely makes more sense than buying
Leasing wins financially in specific scenarios: you drive under the mileage allowance and change vehicles every 3 years anyway (avoiding long-term depreciation risk), the manufacturer's lease subvention (subsidized money factor or residual) makes the effective rate very low (below 3% APR equivalent), or the vehicle is a business asset eligible for significant tax deduction (depreciation or lease payment deduction). For most personal use drivers who keep cars 5+ years, buying wins financially.
Frequently Asked Questions
Should I put money down on a lease?
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Generally no. A cap cost reduction (down payment on a lease) reduces your monthly payment but provides no equity — if the car is totaled in month 3, you lose the down payment. Your gap insurance covers the difference between the car's value and lease payoff, but not your cap cost reduction. Finance the full cap cost (zero down), pay less monthly, and keep the cash available for emergencies or investment.
What happens if I want to get out of a lease early?
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Early lease termination is expensive — typically you owe all remaining payments plus early termination fees, minus the realized vehicle value. This can mean owing $3,000-$8,000+ to exit early. Options: trade in to the dealership (they may cover the difference as part of a new deal), swap the lease to another driver via a lease transfer service (Swapalease, LeaseTrader), or simply keep the car. Read the lease terms for early termination provisions before signing.
Can I buy the car at lease end?
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Yes. The purchase price at lease end is the residual value stated in your lease agreement, plus any applicable fees and taxes. If the car's market value at lease end exceeds the residual, buying at the residual is advantageous — you are purchasing the car below market value. If market value is below residual, return the car. In recent years with elevated used car prices, many lessees chose to buy out their leases at favorable residuals.
Are electric vehicles better to lease than buy?
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Electric vehicles have traditionally had higher depreciation due to rapid technology advancement and changing battery range standards. Higher depreciation means lower residuals and higher lease payments — but also means buyers take on more depreciation risk. The federal EV tax credit structure (as of 2024) also differs for leasing vs buying, sometimes making leasing financially superior for taking advantage of credits in certain configurations. Evaluate the specific EV model's residual value before assuming leasing is better.
Is gap insurance worth it on a lease?
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Most manufacturer-sponsored leases include gap coverage automatically. Check your lease contract — if it is included, you do not need to purchase it separately. If not included, add it — the cost is minimal ($200-400 over the lease term) and it protects you if the car is totaled while you owe more than its value. Never skip gap coverage on a leased vehicle.
How does leasing affect my credit?
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A lease appears on your credit report as an installment obligation, similar to a loan. On-time lease payments build positive payment history. The monthly lease payment factors into your debt-to-income ratio for future loan applications. Multiple open leases can affect DTI calculations. Lease applications involve a hard credit pull. Overall credit impact of leasing is similar to auto financing.
Calculate total lease cost versus buying your next car
Compare the full-period cost of leasing versus financing — not just the monthly payment.
Calculate My Lease Cost