Auto Lease Calculator

A car lease is often marketed with a seductive monthly payment, but what you really want to know is: what is this actually costing me, and is it better than buying? The calculator for auto lease payments breaks down the lease structure into its components — depreciation cost, finance charge, and taxes — so you can see exactly where your monthly payment comes from and negotiate each element intelligently.

The Lease Payment Formula

A lease payment has two components — depreciation and finance charge — plus taxes:

Depreciation per month = (Net Cap Cost − Residual Value) / Term

Finance charge per month = (Net Cap Cost + Residual Value) × Money Factor

Pre-tax monthly payment = Depreciation + Finance charge

Where Net Cap Cost = Negotiated price − Down payment − Trade-in + Fees. Example: negotiated price USD 35,000; down payment USD 3,000; residual 55% of MSRP USD 38,000 = USD 20,900; money factor 0.00125 (= 3.0% APR / 2,400); 36-month term. Net Cap Cost = 35,000 − 3,000 = USD 32,000. Depreciation = (32,000 − 20,900)/36 = USD 308.61/month. Finance charge = (32,000 + 20,900) × 0.00125 = USD 66.13/month. Pre-tax payment = USD 374.74/month. Use this online calculator for any lease structure. The auto loan calculator provides the buy comparison.

Money Factor: Leasing's Hidden Interest Rate

The money factor is the leasing industry's way of expressing the interest rate. To convert: APR = Money Factor × 2,400. A money factor of 0.00125 = 3.0% APR; 0.0020 = 4.8% APR. Dealers rarely volunteer the money factor — always ask for it explicitly and verify it against the manufacturer's subvented (subsidized) rate, which is publicly posted monthly by most manufacturers. A dealer may mark up the money factor above the base rate as additional profit, similar to marking up the interest rate on a loan. Negotiating down the money factor to the base rate can save hundreds over a 36-month term.

Residual Value: The Most Important Number in a Lease

The residual value — what the car is worth at lease end — is set by the leasing company, not negotiated. Higher residual = lower monthly payment (you are financing less depreciation). Residuals are published as percentages of MSRP by manufacturer financial arms and major banks. This is why leasing works best on vehicles with high residuals (German luxury brands, certain Honda and Toyota models) and least well on vehicles with poor residuals (many domestic brands, fully electric vehicles with uncertain future values). A 1% change in residual on a USD 40,000 vehicle = USD 400 less depreciation over a 3-year term = approximately USD 11/month in payment difference.

Lease vs. Buy: When Leasing Wins

Leasing is financially advantageous when:

• You consistently change vehicles every 3 years regardless — leasing avoids the depreciation hit of selling
• The vehicle has strong residuals and low money factor (manufacturer subsidy makes the effective interest rate below market)
• Business use qualifies for lease payment deductibility (consult a tax professional)
• You want the newest safety technology and prefer predictable costs with warranty coverage for the entire lease term

Buying wins for: high annual mileage (leases typically allow 10,000–15,000 miles/year with steep overage fees); long-term ownership; vehicle customization. The lease vs. buy calculator and lease and refinance calculators provide the complete vehicle financing toolkit.