The money factor is the part of a lease quote that dealers explain least and that shoppers question least. It is a small decimal such as 0.00125, and it decides the finance cost of your lease. This guide shows what it is, how to turn it into a rate you can compare, and how much a small change costs in dollars.
In a loan, you pay interest on a balance that shrinks every month. In a lease, you are financing the car's value across the term, and the lessor charges a rent charge each month. Most lessors compute the rent charge with a money factor. The Federal Reserve's leasing guide notes that the lease agreement must disclose the dollar amount of the rent charge, and that federal law does not require a percentage lease rate to be disclosed; it also says such a rate is not a reliable measure of total cost. So the money factor is often something you have to ask for.
Each month: rent charge = (adjusted capitalized cost + residual value) × money factor. With a $31,000 cap cost, a $20,300 residual and a 0.00125 money factor, that is ($31,000 + $20,300) × 0.00125 = $64.12 a month.
Why add the residual? In a lease the lessor is financing the whole car for the whole term, even though you only pay down the depreciation. Averaging the starting balance (cap cost) and the ending balance (residual) gives the typical amount being financed, and the money factor is applied to the sum of the two.
To compare a lease with a loan, you can convert it: money factor × 2,400 ≈ equivalent annual rate. Here is why. Because (cap cost + residual) is twice the average balance, the money factor is half of the monthly rate. Multiply by 2 to get the monthly rate, by 12 for a year, and by 100 for a percent: 2 × 12 × 100 = 2,400.
| Money factor | × 2,400 | Equivalent rate |
|---|---|---|
| 0.00083 | 1.99 | about 2.0% |
| 0.00125 | 3.00 | 3.0% |
| 0.00175 | 4.20 | 4.2% |
| 0.00250 | 6.00 | 6.0% |
Use this as a rough comparison tool, not as an official rate. Under Regulation M, a lessor that discloses a rate must say it may not measure the overall cost of financing, and may not call it an "annual percentage rate". Treat the 2,400 conversion the same way: it helps you compare offers, but the contract's dollar amounts are what you actually pay.
Take the calculator's example (price $33,000, residual 58% of a $35,000 MSRP, 36 months, $2,000 down, 7% tax on the payment). At 0.00125 the payment is $386.64. Raising only the money factor:
| Money factor | Rent charge a month | Total payment a month | Extra over the term vs. 0.00125 |
|---|---|---|---|
| 0.00125 (3.0%) | $64.12 | $386.64 | $0.00 |
| 0.00175 (4.2%) | $89.78 | $414.09 | $988.04 |
| 0.00250 (6.0%) | $128.25 | $455.26 | $2,470.09 |
A change of 0.0005 is easy to overlook on a worksheet, yet it adds about $27 a month, or $988 over 36 months, including the tax on it.
A low money factor does not help if the selling price is inflated, and a low price does not help if the money factor is high. The two work together, which is why the calculator shows both.
Two dealers quote the same car (MSRP $35,000, 58% residual, 36 months, $2,000 down, 7% tax on the payment). Dealer A offers a $33,000 price and a 0.00125 money factor. Dealer B offers a lower price of $32,500 but a 0.0016 money factor. Which is cheaper?
| Dealer A | Dealer B | |
|---|---|---|
| Price | $33,000 | $32,500 |
| Money factor (equivalent rate) | 0.00125 (3.0%) | 0.0016 (3.84%) |
| Adjusted cap cost | $31,000 | $30,500 |
| Depreciation a month | $297.22 | $283.33 |
| Rent charge a month | $64.12 | $81.28 |
| Total payment a month | $386.64 | $390.14 |
| Total over 36 months | $13,919.10 | $14,044.91 |
Dealer B's lower price saves $13.89 a month in depreciation, but its higher money factor adds $17.16 a month in rent charge, so the totals are within $3.49 a month of each other. The lesson is not that one is always better; it is that you cannot judge either number alone. Put both through the calculator, and ask each dealer for the residual and the money factor in writing.
What if my quote shows a percentage instead of a money factor? Divide the percentage by 2,400. A quoted 3.6% is 3.6 ÷ 2,400 = 0.0015.
Is a lower money factor always better? It lowers the rent charge, but only the total payment and the total cost tell you whether the whole deal is good. Check the price, fees and residual too.
Can I find the money factor myself? Not reliably. It is set by the lessor, and it often changes month to month with its current programs, so use the one on your written quote.
Does a zero money factor mean a free lease? No. You still pay depreciation, fees and tax. A very low money factor only removes most of the rent charge.