Check a lease quote line by line and convert money factor to APR.
Results
Enter your numbers to see the results.
Adjusted cap cost
Residual
Monthly depreciation
Monthly rent charge
Base payment
Payment with tax
APR
Total of payments
Due at signing
Total cost
Estimates only. This isn't financial advice. Lease tax rules differ by state, and dealers may add fees not shown here, so ask for an itemized lease worksheet.
Enter the numbers from a dealer quote to rebuild the monthly payment, so you can see whether the math checks out and which number to negotiate. It handles trade-ins (including negative equity), rebates, capitalized fees, and money factor to APR.
How to use it
Enter the MSRP (sticker price) and the negotiated price, also called the capitalized cost. Residual is based on MSRP, but your payment is based on the negotiated price, so both matter.
Enter the residual, as a percent of MSRP or a dollar amount. The leasing company sets it, and it depends on the term and mileage allowance.
Enter the money factor, or the APR if that's what you were quoted (the tool converts it).
Choose the term in months.
Add any cash down, trade-in equity and rebates. If you owe more on your trade than it's worth, enter it as negative equity and it's added to the cost.
Add capitalized fees, like the acquisition fee, and your sales tax rate.
How it works
Your payment covers the car's drop in value over the lease, plus a finance charge called the rent charge, plus tax. The money factor is the interest rate in another form, so multiply it by 2,400 to get the APR.
This version taxes the monthly payment, the most common method. Some states tax the full price or your down payment up front, so check your state's rule.
Worked examples
A $35,000 SUV negotiated to $32,000.
58% residual, money factor 0.00125, 36 months, $2,000 down, an $895 acquisition fee rolled in and 7% tax. Adjusted cap cost is 32,000 + 895 − 2,000 = $30,895. Residual is $20,300. Depreciation is $294.31 a month and the rent charge is $63.99, for a base payment of $358.30, or $383.38 with tax. The money factor works out to 3.00% APR. Over the lease, 36 payments total $13,801.68, or $15,801.68 counting the $2,000 down.
The same deal with nothing down.
The adjusted cap cost becomes $32,895, and the payment rises to $416.35, or $445.49 with tax. Putting money down on a lease mostly prepays it. If the car is totaled or stolen early, that down payment is usually gone, which is why many shoppers prefer to keep it small.
A trade-in.
$45,000 MSRP, $43,000 price, 55% residual, money factor 0.0021, 36 months, $3,000 of trade-in equity and 6.25% tax. The adjusted cap cost is $40,000 and the residual $24,750. Depreciation is $423.61 and the rent charge $135.98, so the payment is $559.59, or $594.56 with tax. That money factor is about 5.04% APR.
A short, low-rate lease.
$28,000 car at sticker, 62% residual, money factor 0.0008 (1.92% APR), 24 months, no tax: $443.33 depreciation + $36.29 rent charge = $479.62 a month. High residuals and low money factors make shorter leases more affordable than you might expect.
Money factor to APR
Money factor to APR
Money factor
Approximate APR
0.00080
1.92%
0.00100
2.40%
0.00125
3.00%
0.00150
3.60%
0.00200
4.80%
0.00250
6.00%
0.00300
7.20%
What you can negotiate
Price (cap cost): the biggest lever. Every $1,000 off cuts about $28 a month from depreciation on a 36-month lease, before rent charge and tax.
Money factor: dealers can mark it up from the lender's base rate. Ask what the "buy rate" is.
Fees and add-ons: ask what's capitalized and whether each item is required.
Residual: usually set by the lender and not negotiable, but it changes with term and mileage, so compare options.
FAQ
How is a car lease payment calculated?
Monthly depreciation, (cap cost − residual) ÷ term, plus a rent charge, (cap cost + residual) × money factor, plus tax. In the first example that's $294.31 + $63.99 = $358.30 before tax.
How do I convert money factor to APR?
Multiply by 2,400. A money factor of 0.00125 is about 3.00% APR. To go from APR to money factor, divide by 2,400.
How does a trade-in affect a lease?
Positive equity lowers the cap cost, like a down payment. In the trade-in example, $3,000 of equity takes the cap cost from $43,000 to $40,000. Negative equity is added to the cap cost and raises the payment.
What is a residual value?
What the leasing company expects the car to be worth at the end of the lease, set as a percent of MSRP. A higher residual means less depreciation to pay for.
Is it better to put money down on a lease?
It lowers the payment, but it doesn't reduce the total much, since it's mostly prepaid depreciation. And if the car is totaled early, you may not get it back.
Why is lease tax different in my state?
States handle lease tax differently. Most tax the monthly payment, but some tax the full cap cost or the down payment up front. This calculator uses the monthly method.
What's the total cost of a lease?
All monthly payments plus anything due at signing that isn't rolled into the payments. In the first example that's $13,801.68 in payments plus $2,000 down.