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Lease Calculator: Monthly Payment, Money Factor and Total Cost
Work out a vehicle lease payment from the negotiated price, residual value, term and money factor. The tool also converts the money factor to an approximate APR and shows what you pay in total.
How a lease payment is built
A lease charges you for the part of the car you use up, plus a finance charge. There are two components.
- Depreciation:
(Capitalized cost − Residual value) ÷ Term. This is the drop in value you pay for over the lease. - Rent charge:
(Capitalized cost + Residual value) × Money factor. This is interest on the average amount tied up. Adding both amounts approximates the average balance, which is why the formula uses a sum rather than a single balance.
The monthly payment is the sum, plus any tax charged on it. Capitalized cost is the negotiated price minus any down payment or trade-in credit.
Money factor and APR
The money factor is a small decimal such as 0.0025. Multiplying by 2,400 gives an approximate APR, so 0.0025 corresponds to about 6%. The factor of 2,400 comes from converting a monthly rate (divide by 12 and by 100) and from the averaging in the rent-charge formula, which doubles the balance. If your lessor quotes only an APR, select that option and the calculator divides by 2,400 to find the money factor. Use the result to compare the lease with a loan from the auto loan calculator, bearing in mind that the two are not identical products.
What to check before signing
- The residual value and money factor, since both are usually set by the lessor and both can be questioned.
- The negotiated price. Lowering it reduces both parts of the payment.
- Mileage limits and charges per extra mile.
- Fees due at signing, and whether they are rolled into the capitalized cost.
- Wear-and-tear terms and early-termination costs.
A low monthly payment can hide a large amount due at signing, so compare the total paid and the all-in monthly average, not just the payment.
Limits
Taxes on leases are charged in different ways: on the payment, on the total, or on the price. This tool applies the rate you enter to the monthly payment only. It does not model refundable deposits, mileage charges, insurance requirements or the option to buy at the end. Estimates are for comparison, and the lease contract controls.
One more habit helps: compute the lease twice, once at the first quote and once after negotiating the price down, and compare the two payments. Because the price enters both the depreciation and the rent charge, a reduction of a few hundred in the capitalized cost lowers the payment by more than the reduction divided by the term. Likewise, try a shorter and a longer term; residual percentages often differ by term, so enter the one quoted for each length rather than reusing a single figure.
Worked example
A 38,000 car negotiated to 36,000, with 2,000 down, a 58% residual over 39 months, a money factor of 0.0021, 6% tax on the payment and 800 in fees.
Inputs
| Sticker price (MSRP) | 38000 |
|---|---|
| Negotiated price (capitalized cost) | 36000 |
| Cash down or trade-in credit | 2000 |
| Residual value | 58 % of MSRP |
| Lease term | 39 months |
| The rate I have is a | Money factor (such as 0.0025) |
| Money factor or APR | 0.0021 |
| Tax on the monthly payment | 6 % |
| Fees due at signing | 800 |
Result
Depreciation 306.67 plus rent charge 117.68 plus tax 25.46.
| Capitalized cost after down payment | 34,000.00 |
|---|---|
| Residual value | 22,040.00 |
| Money factor | 0.002100 |
| Approximate APR (money factor × 2400) | 5.04% |
| Due at signing (down, first payment, fees) | 3,249.81 |
| Total paid over the lease | 20,342.66 |
| Average cost per month, all in | 521.61 |
- At the end you hand the car back, usually subject to mileage and condition charges not included here. Buying the car at the residual price is a separate decision.
Financial disclaimer: Results are estimates for planning and education. They are not financial, tax or legal advice. Fees, taxes, rates and rules vary by lender, product and country, so confirm figures with your provider or a qualified adviser before making decisions.
Frequently asked questions
How is a car lease payment calculated?
Add the monthly depreciation, which is the capitalized cost minus the residual divided by the term, to the rent charge, which is the sum of the capitalized cost and residual multiplied by the money factor.
What is a money factor?
It is the lease finance rate written as a small decimal. Multiply it by 2,400 to estimate the equivalent APR.
What is residual value?
It is the lessor's estimate of what the car will be worth at the end of the lease, often stated as a percentage of the sticker price.
Does a down payment lower the payment?
Yes, it reduces the capitalized cost. But you may lose it if the car is written off early, so many people prefer to pay less up front.
Is leasing cheaper than buying?
Monthly payments are usually lower, but you do not own the car at the end. Compare the total cost over the period you plan to keep a vehicle.
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References and sources
- Consumer Financial Protection Bureau: educational guides on vehicle leasing. Link
- Standard lease formula of depreciation plus rent charge, as used in consumer finance guides.