Money Factor vs. APR: How to Spot a Marked-Up Lease Rate
Your lease rate is hidden in a tiny decimal called the money factor — and dealers count on you not knowing how to read it. Here's how to convert it, compare it, and catch a markup.
I spent 25 years inside dealerships, and if I had to name the single most profitable spot to quietly pad a deal, it's the lease rate. Not the price of the car — the rate. On a finance deal, you see an APR. On a lease, that same rate gets disguised as a strange little decimal called the 'money factor,' and most buyers have no idea what they're looking at. That's not an accident. Let me show you exactly how to read it, how to convert it to a number you actually understand, and how to tell when it's been marked up.
What the Money Factor Actually Is
The money factor is just the interest rate on your lease, expressed as a tiny decimal instead of a percentage. It looks like 0.00125 or 0.00250 — small enough that your eyes glaze over, which is partly the point. There's one simple trick to make sense of it: multiply the money factor by 2,400 and you get the rough equivalent APR.
So a money factor of 0.00125 × 2,400 = about 3% APR. A money factor of 0.00250 × 2,400 = about 6% APR. Memorize 'times 2,400' and you've taken away the dealership's favorite hiding spot. When a salesperson quotes you a money factor, do the math right there at the table. If they quote an APR instead, ask for the money factor anyway — you want to see the actual number on the lease worksheet.
How the Markup Happens
Here's the part most people never learn. The bank (the captive lender, like Honda Financial or BMW Financial) sets a 'buy rate' money factor — that's the dealer's cost. The dealer is often allowed to mark that up by a set amount, frequently up to around 0.00040 (roughly 1% APR) or more, and pocket the difference as profit over the life of the lease. You'll never see the buy rate on the paperwork. You only see the 'sell rate' they hand you.
On a $40,000 vehicle over 36 months, even a 0.00040 markup can quietly add several hundred to over a thousand dollars to what you pay — and it's baked into your monthly payment so it never feels like a separate charge. That's why it's such a clean profit center. Nobody argues about a payment that 'feels about right.'
The Questions That Force the Number Into the Open
You don't need to be confrontational — you just need to be specific. Try these, word for word:
'What's the money factor on this lease, and is that the buy rate or a marked-up sell rate?' Then: 'Can you show me the base money factor from the lender before any dealer markup?' And if they hesitate: 'I understand you may not mark it up, but I'd like to see the lender's published rate to compare.' Asking by name tells them you know the game exists, and that alone often gets the rate adjusted down before you've negotiated anything.
One more move: many manufacturers publish promotional lease rates and money factors on their websites each month. Look up your exact vehicle and trim before you go in. If the dealer's quoted money factor is higher than the advertised special, you have a direct, factual reason to ask why.
Watch the Whole Deal, Not Just the Rate
A low money factor doesn't automatically mean a good lease. Dealers can give you a great rate and quietly raise the 'capitalized cost' (the negotiated price of the car), shrink your trade value, or stack on add-ons. The rate is one of four or five levers, and a sharp store will loosen one while tightening another. Always evaluate the money factor alongside the cap cost, the residual value, the fees, and any acquisition or disposition charges.
Two leases with identical monthly payments can differ by over a thousand dollars in true cost depending on how those pieces are arranged. The payment is the magician's misdirection. The worksheet is where the truth lives — so ask for it, line by line, every time.
If you've got a lease quote in front of you and the money factor looks fuzzy — or you just want a second set of eyes before you sign — that's exactly what my 30-Minute Deal Audit is for. For $85, we get on a call or Zoom and go through your numbers line by line: the money factor, the cap cost, the fees, all of it. You'll walk away knowing precisely where the markup is and what to say to fix it. And if you'd rather start with the basics, my free guides are always at /free-guides. Either way, don't let a tiny decimal cost you real money.