How a car lease works — a plain-language explainer

How a car lease works — a plain-language explainer

June 30, 2026
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Leasing sounds complicated. The terminology — money factor, residual value, capitalized cost — is enough to make most people give up and just accept whatever payment the dealer quotes. But the actual math is simple once you understand what each term means.

 

Here’s everything you need to know.

What is a lease?

When you lease a car, you’re paying for the portion of the vehicle’s value that you use — not the whole car. The manufacturer predicts how much the car will be worth at the end of your lease term (that’s the residual value), and you pay the difference between what the car is worth now and what it will be worth then, plus interest.

 

At the end of the lease, you return the car. Or, if you want to keep it, you buy it for the residual value.

The five numbers that determine your monthly payment

1 — MSRP (sticker price)

The manufacturer’s suggested retail price. This is the starting point for calculating residual value. It’s not the price you pay — it’s the baseline.

2 — Capitalized cost (cap cost)

This is the negotiated selling price of the vehicle — the price you actually pay before the lease begins. A lower cap cost means a lower monthly payment. This is the number you negotiate.

3 — Residual value

What the manufacturer predicts the car will be worth at lease end, expressed as a percentage of MSRP. A vehicle with a residual of 55% at 36 months means the manufacturer expects it to retain 55% of its sticker price after three years. Higher residual = lower payment.

 

Residuals are set by the manufacturer and are not negotiable. However, choosing a model with a better residual is absolutely a strategy worth considering.

4 — Money factor

The lease equivalent of an interest rate. A money factor of .00125 converts to a traditional APR by multiplying by 2,400 (.00125 × 2,400 = 3.0% APR). Money factors are published monthly by manufacturers and are not widely advertised. Dealers can mark up the money factor and pocket the difference.

5 — Lease term

Usually 24, 36, or 39 months. Longer terms spread your payments out more but leave you driving an older vehicle for longer. Most lessees choose 36 months.

How the monthly payment is calculated

The monthly lease payment has two components:

 

Depreciation fee: (Capitalized Cost − Residual Value) ÷ Number of months

 

Finance fee: (Capitalized Cost + Residual Value) × Money Factor

 

Add them together for your base monthly payment. Then add tax.

 

Example: $45,000 cap cost on a vehicle with a $27,000 residual over 36 months at a money factor of .00125.

 

  • Depreciation: ($45,000 − $27,000) ÷ 36 = $500/month
  • Finance fee: ($45,000 + $27,000) × .00125 = $90/month
  • Base payment: $590/month (before tax)

What is “due at signing”?

Leases typically require money upfront: your first month’s payment, a security deposit (sometimes), registration fees, and any capitalized cost reductions (a down payment on the lease). Some leases are advertised as “$0 due at signing” — those deals usually have a higher monthly payment built in.

 

Money down on a lease does not protect you if the car is totaled — unlike a purchase. If the car is destroyed in the first month, you lose your down payment. For this reason, many financial advisors recommend putting as little money down as possible on a lease.

What happens at the end of a lease?

At lease end, you have three options:

 

Return the car. Drop it off at the dealer and walk away. You’ll pay for any excess mileage or wear and tear beyond normal use.

 

Buy the car. Purchase it for the predetermined residual value. This makes sense if the car’s actual market value is higher than the residual — common in years when used car prices are elevated.

 

Lease a new vehicle. Start the process again with your next car. Most repeat lessees work with a broker for this — the process gets easier every time.

Is leasing right for you?

Leasing makes sense when you:

 

  • Want a new vehicle every 2–3 years
  • Drive a predictable annual mileage (typically under 12,000–15,000 miles)
  • Want lower monthly payments than purchasing
  • Prefer to avoid dealing with depreciation and resale

 

Leasing is less ideal when you drive high annual mileage, want to own the vehicle outright, or plan to keep a car for more than 5 years.

 

Still not sure? Call Riches Rides at (424) 242-9442. We’ll run the numbers for your specific situation and give you an honest recommendation.



Riches Rides is a licensed car lease broker in Los Angeles and Southern California. We broker lease deals on all makes and models — and deliver to your door. Get a lease quote →



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