Car Lease Calculator — Estimate Your Monthly Lease Payment
Break a lease quote into depreciation, finance charge and tax — the way the dealer's worksheet really works
A car lease looks simple on the showroom floor — "$329 a month for 36 months" — but that number hides three separate pieces, and dealers rarely show you how they got there. This car lease calculator rebuilds the payment from scratch using the exact formula on a lease worksheet, so you can check a quote, compare two cars, or spot a marked-up money factor before you sign.
Unlike an auto loan, where you borrow the full price to own the car, a lease only charges you for the portion of the vehicle you actually use — its depreciation over the term — plus a finance charge and sales tax. That's why a $45,000 SUV can lease for less per month than a $30,000 car finances: it depends on how much value the car loses while you drive it.
The monthly payment has three parts:
Depreciation = (capitalized cost − residual value) ÷ term in months. This is the chunk of the car's value you're "using up." A higher residual (the car's projected worth at lease-end) means lower depreciation and a cheaper lease.
Finance charge (rent charge) = (cap cost + residual value) × money factor. The money factor is the lease version of an interest rate — multiply it by 2,400 to get the rough APR. A money factor of 0.0025 is about 6% APR.
Sales tax — in most US states, tax is applied to the monthly payment (depreciation + finance), not the whole car. A handful of states tax the full cap cost or the down payment instead.
Put together: monthly payment = depreciation + finance charge + tax on the base. For a $35,000 cap cost, a $21,000 residual, a 0.0025 money factor and a 36-month term, depreciation is (35,000 − 21,000) ÷ 36 = $388.89 and the finance charge is (35,000 + 21,000) × 0.0025 = $140, for a pre-tax base of $528.89 — then sales tax is added.
The biggest lever is the residual value, set by the leasing company as a percentage of MSRP (often 50%–62% for 36 months). This calculator lets you enter residual as a dollar amount or a percent of MSRP. The second lever is the capitalized cost — the negotiated price plus fees minus any cap-cost reduction (down payment, trade-in or rebates). Negotiating the cap cost down still matters; the residual and money factor are usually set by the bank.
This is an estimate to help you compare lease quotes — not financial advice. Acquisition fees, disposition fees, registration and dealer add-ons vary by lender and state, so your signed payment may differ. To own the car at the end instead, compare against an auto loan.
Calculator
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📰 Formula
• Residual value = MSRP × residual percent (or enter a dollar amount directly) • Depreciation = (capitalized cost − residual value) / term in months • Finance (rent) charge = (capitalized cost + residual value) × money factor • Pre-tax base payment = depreciation + finance charge • Monthly payment = base payment × (1 + sales tax rate) • Money factor ≈ APR / 2400 (so APR ≈ money factor × 2400)
📰 Formula
• Residual value = MSRP × residual percent (or enter a dollar amount directly) • Depreciation = (capitalized cost − residual value) / term in months • Finance (rent) charge = (capitalized cost + residual value) × money factor • Pre-tax base payment = depreciation + finance charge • Monthly payment = base payment × (1 + sales tax rate) • Money factor ≈ APR / 2400 (so APR ≈ money factor × 2400)
🧪 Worked examples
Example 2
Example 3
Example 4
⚠️ Common mistakes
- Confusing the money factor with APR — divide APR by 2,400 to get the money factor, or multiply the factor by 2,400 to get APR.
- Adding the residual instead of subtracting it in the depreciation step — depreciation is cap cost minus residual.
- Forgetting that the finance charge adds the residual to the cap cost, not subtracts it.
- Applying sales tax to the whole car price when most states tax only the monthly payment.
- Leaving the down payment (cap-cost reduction) out of the capitalized cost when comparing quotes.
💡 Tips
- A higher residual percentage lowers depreciation and your payment — cars that hold value (trucks, some SUVs) often lease cheaper.
- Money factor is usually quoted as a small decimal like 0.00125; ask the dealer for it directly and convert with × 2,400 to sanity-check the APR.
- Reducing the capitalized cost lowers both the depreciation and the finance charge, so negotiating price still matters on a lease.
- Putting cash down on a lease lowers the payment but you lose it if the car is totaled early — many shoppers prefer little or no money down.
- Check your state's rule: most tax the monthly payment, but a few tax the full price or the cap-cost reduction up front.
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❓ Frequently asked questions
How is a monthly car lease payment calculated?
Add three parts: depreciation = (cap cost − residual) ÷ term months; finance charge = (cap cost + residual) × money factor; then add sales tax on that base. For a $35,000 cap, $21,000 residual, 0.0025 money factor and 36 months: $388.89 + $140 = $528.89 before tax.
What is a money factor and how does it convert to APR?
The money factor is the lease's interest rate written as a tiny decimal. Multiply it by 2,400 to get the approximate APR: a money factor of 0.0025 is about 6% APR. To go the other way, divide the APR by 2,400.
What is residual value on a lease?
Residual value is what the leasing company projects the car will be worth at the end of the lease, usually a percentage of MSRP (often 50%–62% for 36 months). A higher residual means less depreciation and a lower monthly payment.
What is the capitalized cost?
The capitalized cost ("cap cost") is the agreed price of the car for the lease, including fees, minus any cap-cost reduction such as your down payment, trade-in or manufacturer rebates. It is the lease equivalent of a negotiated purchase price.
Is sales tax on a lease charged on the whole car or the payment?
In most US states, sales tax is applied to each monthly payment (depreciation + finance charge), which is why this calculator taxes the base payment. A few states tax the full vehicle price or the down payment instead — check your state's rule.
Does a bigger down payment lower my lease payment?
Yes. A down payment is a cap-cost reduction, so it lowers both the depreciation and the finance charge. But if the car is totaled or stolen early, you usually lose that cash, so many shoppers lease with little or nothing down.
Is leasing cheaper than financing a car?
The monthly lease payment is almost always lower than a loan payment on the same car because you only pay for depreciation, not the full price. But you own nothing at the end of a lease, while a loan leaves you with the car. Compare both with an auto-loan calculator.
How do I lower my monthly lease payment?
Negotiate the capitalized cost down, choose a car with a higher residual value, look for a lower money factor, or pick a term that fits the residual curve. Avoid rolling fees into the cap cost when you can pay them separately.
Is this car lease calculator's payment exact?
It is a close estimate using the standard lease worksheet formula. Your signed payment can differ because of acquisition fees, disposition fees, registration, dealer add-ons and state-specific tax rules. Treat the result as a planning estimate, not financial advice.