Money factor vs APR: how your lease payment is built

Published October 23, 2026

Why a lease does not show an APR

If you have compared a lease with a loan, you have probably noticed that the lease paperwork talks about a "money factor" or a "rent charge" rather than an annual percentage rate. That is deliberate. Under the federal consumer leasing rule, Regulation M, a lease is not a loan, and the rule says that when a percentage rate appears in an ad or in lease documents, it has to carry a notice that it may not measure the overall cost of the lease. The rule also tells lessors not to call it an "annual percentage rate" or anything equivalent.

The practical result is that you have to do a small piece of arithmetic to compare the finance cost of a lease with a loan quote. It is not hard, and it is worth ten minutes before you sign.

The pieces of a lease payment

Regulation M requires a covered consumer lease to show how the periodic payment is calculated, step by step. The lines it lists are the capitalized cost, any reductions to it, the residual value, the depreciation, the rent charge and the base payment.

• Capitalized cost is the price the lease starts from, the vehicle price you agreed on plus anything rolled in, such as fees.
• Capitalized cost reduction is anything that lowers it: a down payment, a trade-in credit or a rebate.
• Residual value is what the leasing company expects the car to be worth at the end, set in the contract.
• Depreciation is the adjusted capitalized cost minus the residual, spread over the months of the lease.
• Rent charge is the finance cost of the lease, usually computed from the money factor.
• Base payment is depreciation plus the rent charge, before sales tax.

The formula, with an example

The usual way to compute the two pieces is:

• Monthly depreciation = (adjusted capitalized cost − residual value) ÷ number of months
• Monthly rent charge = (adjusted capitalized cost + residual value) × money factor

Here is an example with round numbers. They are illustrative, not a quote or a real program.

Turning a money factor into an APR

A common rule of thumb is to multiply the money factor by 2,400 to get an approximate APR. In the example, 0.0025 × 2,400 = 6%. It is an approximation, not a figure the lease promises, but it gives you something to hold up against a loan rate. If a lease shows a rate, ask for the money factor in writing so you can check the math.

Where the negotiating room is

Three of the lines are worth asking about: the capitalized cost, which is the price of the car, the money factor, and any fees rolled into the lease. The residual value is set in the program and is generally not negotiable. Asking for the full payment calculation in writing is reasonable, and a lease that follows Regulation M will include it.

What to check before signing

1. Find the payment calculation section and confirm the capitalized cost matches the price you agreed on.
2. Look for the residual value and the term, and re-do the depreciation math yourself.
3. Ask for the money factor and compute the approximate APR.
4. Add the amount due at signing and the total of payments, and compare offers on the total, not the monthly figure alone.

Common questions

Sources

• CFPB: Regulation M, 12 CFR 1013.4, Content of disclosures
• Cornell LII: 12 CFR 1013.4

General information, not legal or financial advice. Worldwide Auto Leasing is not a lender; leases are written by the manufacturer's captive bank or a partner bank and are subject to credit approval. Your own lease contract controls your rights and obligations. Ready to talk numbers? Request a custom quote.