Auto Lease Calculator
A lease payment is depreciation + finance charge + tax. This calculator finds each piece from the car price, residual value and money factor: the depreciation you pay off, the rent (finance) charge on the money factor, and the sales tax — then the total monthly payment.
Use this auto lease calculator to check a dealer's lease quote or estimate a payment before you go. Enter the auto price, any down payment or trade-in, the residual value, the APR (which becomes the money factor), the term and your sales tax — and it returns the monthly payment with a full breakdown.
Enter the car and lease terms, then press Calculate.
How the auto lease calculator works
A lease charges you for two things: the value the car loses while you drive it, and the cost of the lender's money in the meantime. The depreciation part is the net capitalized cost — the price after your down payment and trade-in — minus the residual value the car will be worth at the end, spread evenly over the months. The finance part, sometimes called the rent charge, is the net cap cost plus the residual multiplied by the money factor, which is just the interest rate written as a small decimal (APR ÷ 2,400).
Add the depreciation and finance charges, apply sales tax to that sum the way most U.S. states do, and you have the monthly lease payment. Seeing the breakdown makes a dealer quote easy to check: if the numbers do not line up, something in the price, residual or money factor is different from what you were told. When you are weighing the lease against a loan, use the lease vs buy calculator.
The lease formulas
- Net cap — price − down − trade-in
- Money factor — APR ÷ 2,400
- Residual — value at lease end
Where the money goes
The breakdown is the most useful thing a lease calculator can show, because it reveals what you are actually paying for. Most of the payment is depreciation — the value the car sheds while you have it — which is why cars that hold their value lease more cheaply. The finance charge is the lender's interest, driven by the money factor, and it is the number dealers are least transparent about; converting it back to an APR (money factor × 2,400) lets you sanity-check it against normal loan rates. Anything that lowers the net cap cost, like a bigger down payment or a rebate, shrinks both parts.
Watch the drive-off and the mileage
The monthly payment is only part of the cost. At signing you will also owe drive-off charges — often the first payment, an acquisition fee, taxes and registration — and putting a large sum down on a lease is risky, because if the car is totalled early that money can be lost. Leases also cap your mileage, typically 10,000 to 15,000 miles a year, with a per-mile charge for going over. Factor both into the decision, and treat this payment as the core cost rather than the whole picture.
Converting money factor to APR
Dealers quote lease financing as a money factor, a small decimal like 0.00271, instead of an interest rate, which makes it hard to judge. The fix is one simple rule: money factor × 2,400 = APR, and APR ÷ 2,400 = money factor. So a money factor of 0.00271 is about a 6.5% rate, and a 4.8% rate is a money factor of 0.002. The 2,400 is a fixed convention, not a changing number, so this conversion always works. Run it before you sign and you can compare a lease head-to-head with a normal loan APR, and spot when a low-looking money factor is really an expensive rate in disguise.
Estimate only — not financial advice. Lease tax rules, fees and residuals vary by state and lender. Confirm the money factor, residual and drive-off costs with the dealer.
How to use it & key terms
Enter the auto price, down payment and trade-in, then the residual value, APR, term and sales tax, and press Calculate to see the monthly lease payment and its parts.
| Term | What it means |
|---|---|
| Capitalized cost | The negotiated price of the car for the lease. |
| Cap cost reduction | Down payment, trade-in or rebate that lowers the cap cost. |
| Residual value | The car's value at lease end, set by the lender. |
| Money factor | The lease interest rate as a decimal; APR ÷ 2,400. |
| Depreciation | The value lost during the lease, paid off monthly. |
| Finance charge | The lender's interest, from the money factor. |
Sources & methodology
The net capitalized cost is the auto price minus the down payment and trade-in. The monthly depreciation is the net cap cost minus the residual value, divided by the lease term in months. The monthly finance charge is the net cap cost plus the residual, multiplied by the money factor, where the money factor is the APR divided by 2,400. Sales tax is applied to the sum of the depreciation and finance charges, as most U.S. states tax the monthly lease payment, and the three are added for the total. This follows the standard lease payment method used across the industry.
Sources: Standard auto lease payment method (depreciation + rent charge via money factor + tax on the payment).
What you can negotiate on a lease
A lease can feel like a fixed package handed to you at the desk, but several of the numbers that drive the payment are open to negotiation — and knowing which ones saves real money. The biggest is the capitalized cost, the price the lease is built on. It can be bargained in exactly the same way as a cash purchase price, and every dollar you knock off lowers both the depreciation and the finance portions of the payment. Agree the selling price first, before the conversation turns to a monthly figure, so a lower price is not quietly traded away for a longer term or a higher rate.
The money factor is the second lever, and the one dealers are least eager to discuss. Like the interest rate on a loan it can carry a markup above the rate the leasing company actually offers, so ask for the base figure and compare quotes from more than one place. It is worth converting the money factor to an equivalent interest rate before you judge it, so a small-looking decimal cannot disguise an expensive rate. The residual value, by contrast, is set by the lender and is generally fixed — you cannot bargain it down, but choosing a model that holds its value does the same job, because a higher residual leaves less depreciation to pay for.
A few smaller points are easy to miss but add up:
- Do not roll the unpaid balance of an old loan into the lease — that negative equity inflates the cap cost and raises every payment.
- If you know you will drive a lot, buying extra miles up front is usually cheaper than paying the per-mile penalty at the end.
- A large sum down lowers the payment but adds risk, because an early total loss can swallow that cash — many lessees keep the amount due at signing small on purpose.
Treat the quote as a starting point, not a verdict. Change one input at a time above — a lower price, a keener money factor, a different term — and watch how the payment responds. Seeing which lever moves the number most tells you where to push hardest. That turns a vague sense that a deal is too expensive into a specific figure you can take back to the desk and ask them to match.
Frequently asked questions
How is a car lease payment calculated?
A lease payment has two parts plus tax. The depreciation portion is the net capitalized cost minus the residual value, divided by the number of months. The finance portion is the net cap cost plus the residual, multiplied by the money factor. Add those together and multiply by the sales tax rate to get the tax, then add all three. On a $39,000 net cap cost with a $24,000 residual, 0.00271 money factor, 36 months and 7% tax, the payment is about $628 a month.
What is the money factor?
The money factor is the lease equivalent of an interest rate, written as a small decimal. To convert an APR to a money factor, divide it by 2,400 — so a 6.5% APR is a money factor of about 0.00271. To go the other way, multiply the money factor by 2,400 to see the equivalent APR. A lower money factor means a cheaper lease, and like an interest rate it depends on your credit, so it is always worth asking the dealer for the exact figure.
What is residual value?
The residual value is the lender's estimate of what the car will be worth at the end of the lease, and it is the price at which you can usually buy the car when the lease ends. A higher residual means less of the car's value is used up during the lease, so the depreciation portion of your payment is smaller. This is why slow-depreciating models often lease more cheaply than their price alone would suggest.
What is capitalized cost and cap cost reduction?
The capitalized cost is the agreed price of the car for the lease, and like a purchase price it can be negotiated. A cap cost reduction is anything that lowers it up front — a cash down payment, a trade-in, or a manufacturer rebate. The net capitalized cost is the price after those reductions, and it is the figure the lease payment is built from, so reducing it lowers both the depreciation and the finance parts of the payment.
How is sales tax applied to a lease?
In most U.S. states, lease sales tax is charged on the monthly payment rather than the full price of the car, which is one reason leasing can feel cheaper month to month. This calculator applies the tax rate to the sum of the depreciation and finance portions and adds it to the payment. A few states tax the full price or the cap cost up front instead, so check how your state handles lease tax before relying on the figure.
Is leasing cheaper than buying?
Leasing usually has lower monthly payments and a smaller amount due at signing, because you only pay for the depreciation during the lease rather than the whole car. But you build no equity and own nothing at the end, and leasing continuously can cost more over many years than buying and keeping a car. Whether it is cheaper depends on how long you keep vehicles and the specific numbers, which the lease vs buy calculator compares directly.
How do you convert money factor to APR?
Multiply the money factor by 2,400 to get the equivalent annual interest rate, and divide an APR by 2,400 to get the money factor. For example, a money factor of 0.00271 works out to about 6.5% (0.00271 × 2,400), and a 4.8% rate is a money factor of 0.002. The 2,400 figure is a fixed convention built into how leases are quoted, not a rate that changes. Converting lets you compare a lease's financing cost against a normal loan APR on equal terms.
How does residual value affect a lease payment?
Residual value is what the car is projected to be worth at the end of the lease, and you only pay for the depreciation between the price and that residual. A higher residual means less depreciation to cover, so your monthly payment is lower, while a low residual means a bigger drop in value and a higher payment. Lenders set the residual as a percentage of MSRP, so leasing a model that holds its value well is one of the biggest levers for a cheaper lease.
Can you take over someone's car lease?
Yes, in many cases. A lease takeover, sometimes called a lease transfer or assumption, lets you take on the remaining months and payments of someone else's lease, often through a matching marketplace. It can be a way to get a shorter commitment and skip the usual drive-off costs, while the person leaving avoids early-termination penalties. Check whether the leasing company allows transfers and whether the original lessee stays partly liable, confirm how much of the mileage allowance is already used, and inspect the car for wear you could be charged for at lease-end.