Car Finance ToolsCalculate

Lease Money Factor Calculator

Updated

Dealer lease ads disclose the monthly payment but hide the money factor — the actual finance rate. Paste the publicly disclosed numbers from any offer and we back-solve it.

The money factor on any lease offer is (monthly payment − depreciation charge) divided by (adjusted cap cost + residual value), where depreciation charge is (adjusted cap cost − residual) divided by the lease term. Multiply the money factor by 2400 for the equivalent APR.

Estimate only. Estimate only. Not a loan offer, lender quote, dealer quote, lease agreement, retail installment sales contract, DMV estimate, or financial advice. Actual rates, payments, taxes, fees, incentives, residual values, insurance, fuel, and maintenance costs may vary.

Numbers from the dealer ad

Enter the publicly disclosed numbers from any lease offer. We back-solve the money factor and break down the rest.

What the lease actually finances (shown in most luxury ads).

Money factor

0.00180

≈ 4.32% APR

Residual

52.0%

$39,650.00

Total lease cost (39 months)

$39,951.00

Payments + cash down + acquisition fee, pre-tax

Check: at exactly 0.00180, the pre-tax payment is $868.56, which rounds to $869.

Deal quality verdict

Compare the computed money factor against the typical benchmark for your credit tier.

Your credit tier

Pick where your credit profile actually lands — Excellent ≈ 720+, Good ≈ 660–719, Fair ≈ 600–659, Poor ≈ < 600.

Good rate

Computed money factor: 0.00180 (≈ 4.32% APR). Excellent-credit benchmark: 0.00140 (≈ 3.36% APR). This deal is +0.96 percentage points above the Excellent-tier benchmark.

Depreciation charge / month

$678.21

Finance charge / month

$190.79

Effective monthly cost

$1,024.38

Total lease cost ÷ 39 months

How the adjusted cap cost adds up

MSRP
$76,250.00
Your cash down
− $5,135.00
Dealer contribution & incentives
− $5,015.00
Adjusted cap cost
$66,100.00

Dealer contribution & incentives is what MSRP, your cash down, and the adjusted cap cost leave over. Ads usually split it into a dealer contribution and a manufacturer lease credit. Either way it's already inside the adjusted cap cost, so it doesn't change the money factor.

Due at signing breakdown

Lowers your payment

Cap cost reduction (cash down)
$5,135.00
Your down payment — the only part that reduces what's financed

Doesn't lower your payment

First month's payment
$869.00
Payment 1 of 39, paid upfront
Acquisition fee
$925.00
The leasing company's fee for setting up the lease
Computed total
$6,929.00
Ad shows
$6,929.00

Tax, title, registration, and dealer fees are usually due at signing on top of this.

Your $5,135.00 down lowers the payment by about $140.91/month. With $0 down, the same deal would be about $1,009.91/month before tax.

Over 39 months it saves about $360.48 in rent charges. The rest is depreciation paid upfront instead of monthly.

info: Cash down isn't protected if the car is totaled

If the vehicle is stolen or totaled, insurance — plus gap coverage, if your lease includes it — generally settles what's still owed to the leasing company. The cash you put down usually isn't refunded. Check your lease contract and insurance policy for the specifics.

Assumptions usedv2026-06-18
  • Monthly payment inputPre-tax (the default convention in dealer ads)
  • Money factor roundingLenders quote five decimals; we show the five-decimal factor that reproduces the advertised payment, and the APR from it
  • Cap cost reductionYour cash only; dealer contributions and manufacturer lease credits are already netted out of the adjusted cap cost
  • Acquisition feePaid at signing, not rolled into the cap cost
  • Total lease costPre-tax monthly payments + cash down + acquisition fee; excludes tax, title, registration, dealer fees, the refundable security deposit, and any disposition fee

How this is calculated

Forward formula (standard lease math): monthly payment = depreciation charge + finance charge (+ tax). Depreciation charge = (adjusted cap cost − residual) ÷ term. Finance charge = (adjusted cap cost + residual) × money factor.

Reverse formula (this calculator): solving for money factor algebraically yields money factor = (monthly − depreciation) ÷ (adjusted cap cost + residual). The conversion to APR is APR ≈ money factor × 2400.

Worked example (luxury crossover lease): $76,250 MSRP, 39-month term, residual $39,650 (≈ 52% of MSRP), adjusted cap cost $66,100, monthly payment $869 pre-tax. Depreciation = (66,100 − 39,650) ÷ 39 = $678/mo. Finance charge = 869 − 678 = $191/mo. Money factor = 191 ÷ (66,100 + 39,650) ≈ 0.00180. Equivalent APR ≈ 0.00180 × 2400 = 4.32%.

Rounding: ads round the payment to the dollar, so the solved factor carries a little noise (0.0017970 where the lender's rate is 0.00180). Lenders quote money factors to five decimals, so we show the five-decimal factor whose payment rounds to the ad's, and derive the APR from that same figure.

Cash down: the cap cost reduction is the only part of due at signing that lowers the payment. Each dollar down removes 1/term of depreciation plus one dollar × money factor of rent charge from every payment. Dealer contributions and manufacturer lease credits are already netted out of the adjusted cap cost, so they need no separate input.

For the conversion fundamentals, read money factor vs APR. To model a hypothetical lease from MSRP and money factor (the forward direction), use the auto lease calculator. To compare a lease against financing, use lease vs buy.

Frequently asked questions

What is a money factor on a lease?
The money factor is the lease equivalent of an interest rate, written as a small decimal. Multiply by 2400 to get the equivalent APR. A money factor of 0.00180 is about 4.32% APR.
Why don't dealers show the money factor?
Because it makes price comparison easy. Most lease ads disclose monthly payment, term, MSRP, residual, and adjusted cap cost — but skip the money factor. That's enough information to compute it; this calculator does that math.
What is a good money factor?
Typical money factors for non-subvented leases: excellent credit around 0.0014 (≈ 3.4% APR), good credit around 0.0024 (≈ 5.8%), fair credit around 0.0036 (≈ 8.6%), poor credit around 0.0050 (≈ 12%). Subvented (manufacturer-incentivized) leases can be lower.
How do I convert money factor to APR?
Multiply by 2400. So 0.00180 × 2400 = 4.32% APR. Conversely, divide an APR by 2400 to estimate the money factor: 5% APR ÷ 2400 ≈ 0.00208.
Does the money factor include sales tax?
No. Sales tax is applied separately depending on your state's lease tax treatment (monthly payment, full selling price, depreciation only, or none). Most dealer ads quote pre-tax monthly payments; this calculator solves the money factor on the pre-tax payment.
How much of due at signing is a down payment?
Only the cap cost reduction. The first month's payment, the acquisition fee, and any security deposit are also due at signing but don't lower the monthly payment. Cash down lowers each payment by about (cash down ÷ term) + (cash down × money factor). If the vehicle is stolen or totaled, insurance and any gap coverage generally settle what's owed to the leasing company, and the cash down usually isn't refunded.

Related calculators

  • Lease Payment

    Estimate your monthly lease payment from MSRP, selling price, residual, money factor or APR, taxes, fees, and incentives.

  • Lease vs Buy

    Compare leasing and financing across a chosen horizon: monthly cost, upfront cash, total cost, interest, equity, and mileage exposure.

  • Auto Loan Payment

    Estimate your monthly car payment, total interest, and out-the-door cost from price, down payment, APR, term, trade-in, taxes, and fees.