Is it better to use APR or Money Factor for leases?
Leases are quoted with a Money Factor (MF). You can convert APR to MF by dividing APR% by 2400. The calculator supports both.
Auto Lease Calculator
Professional-grade auto lease calculator. Estimate monthly lease payment, depreciation, finance charge, taxes, due at signing, and total lease cost. WCAG 2.1 AA accessible and mobile-first.
Lease inputs
Enter the negotiated price, term, money factor/APR, and optional fees to model a real lease. Results appear instantly in the adjacent panel.
Monthly payment (with tax)
$0.00
Base monthly payment
$0.00
Sales tax (monthly)
$0.00
Due at signing (est.)
$0.00
Total lease cost
$0.00
All values are estimates. Taxes and fees vary by jurisdiction and contract.
Total of monthly payments
$0.00
Total depreciation
$0.00
Total finance charge
$0.00
Adjusted cap cost
$0.00
Residual value
$0.00
Effective monthly cost
$0.00
How to Use This Calculator
This professional-grade auto lease calculator helps shoppers, fleet managers, and finance pros estimate monthly payments, taxes, due at signing, and total lease cost with clarity. Start by entering the vehicle MSRP, negotiated price, term, and residual, then layer in fees, taxes, cash, and reductions.
- Use the finance mode toggle to enter either APR (annual percentage rate) or the money factor quoted by the lessor.
- Capitalized fees and reductions flow into the adjusted capitalized cost before depreciation and finance charges are computed.
- Choose the state-specific tax treatment radio buttons so the model adds monthly tax or applies it upfront.
Methodology
The engine builds the adjusted capitalized cost by adding financed fees to the negotiated price, then subtracting down payments and trade-in credits. Depreciation is the difference between that adjusted cost and the residual estimate, divided by the number of months. The finance (rent) charge multiplies the sum of adjusted cap cost and residual by the money factor.
- The money factor is derived from APR% by dividing by 2400 whenever APR mode is selected.
- Monthly tax adds to each payment while the other methods push tax onto upfront fees or the vehicle price, matching state rules.
- Due at signing aggregates the first monthly payment, upfront fees not capitalized, taxes owed upfront, the down payment, and subtracts any trade-in credits.
Results are estimates generated with the same formulas lenders use. Actual lease contracts may include additional fees or special taxes, so consult your dealer or finance team for precise quotes.
Full original guide (expanded)
The calculator was built from the original audit spec and includes the following narrative walkthrough and FAQs for reference.
Step-by-step example
- Set the vehicle and term: MSRP $40,000, negotiated price $37,000, term 36 months, residual 60%.
- Enter fees and reductions: Acquisition fee $650 (capitalized), down payment $2,000, other financed fees $0, upfront fees $0.
- Choose finance and taxes: Money factor 0.0020 (≈ 4.8% APR), tax 8% taxed on the monthly payment.
- Compute adjusted cap cost and residual: Adjusted cap cost = 37,000 + 650 − 2,000 = 35,650. Residual = 40,000 × 0.60 = 24,000.
- Compute monthly payment: Depreciation = (35,650 − 24,000)/36 = 326.39. Finance = (35,650 + 24,000) × 0.0020 = 119.30. Base monthly = 445.69. Tax = 35.66. Monthly with tax = 481.35.
Frequently asked questions
What is residual value and who sets it?
Residual value is the vehicle’s expected value at lease end and is set by the lessor (often aligned to third-party guides). It is usually a percentage of MSRP.
What fees are included in the lease calculation?
Typical fees include the acquisition fee, documentation, title/registration, and any dealer-installed options. Acquisition and some fees can be capitalized or paid upfront.
How are taxes applied in a lease?
Tax treatment varies by state: on each monthly payment, upfront on total of payments, or on the vehicle price or capitalization cost. Select the method that matches your state’s rules.
What counts as cap cost reduction?
Down payment, rebates, and trade-in credit are common cap cost reductions. They reduce the adjusted capitalized cost and monthly payment but may not lower the total cost proportionally.
Does a higher mileage allowance change my payment?
Higher mileage typically lowers residual value, which increases the depreciation portion of the payment. This calculator lets you input the residual directly.
What is due at signing?
Usually the first monthly payment, any upfront taxes, upfront fees that are not capitalized, and the down payment minus trade-in credits.