Money Factor Markup: How Dealers Hide $864 in Your Lease

The dealer told you the money factor was 0.00280. They said it was "set by the bank." You looked up the captive lender's published rate for the month and it was 0.00180. The difference is the markup. On a typical 36-month lease, that one decimal that nobody flagged just cost you $864.

The money factor on your lease worksheet looks like one number. It is two numbers added together. The captive lender publishes a base "buy rate" every month, somewhere between 0.00125 and 0.00300 depending on the brand and your credit tier. The dealer can mark it up by as much as 0.0004, and the lender pays them the difference as a back-end commission once the lease funds. That commission is called dealer reserve. The buy rate is in the lender's monthly rate sheet, and the rate sheet is not given to you. The markup is in the worksheet you sign.

This post walks through exactly how money factor markup works, what the May 2026 captive lender base rates actually are, the script that gets the markup back, and the calculator that runs the math on your specific quote.

TL;DR

• The money factor on your lease worksheet is the captive lender's buy rate plus the dealer's markup. The markup goes to the dealership as back-end profit called dealer reserve.
• Federal Regulation M, 12 CFR 1013, requires disclosure of the monthly payment, total of payments, and gross capitalized cost. It does not require the money factor or buy rate to be disclosed at all.
• In May 2026, base buy rates at Tier 1 credit run from 0.00128 at Toyota Financial Services to 0.00280 at non-promo Mercedes programs. A typical markup of 0.0010 over the base costs the customer $24 per month, or $864 across a 36-month lease.
• The CFPB's 2017 dealer-markup study and the FTC's 2020 Bronx Honda settlement are the two enforcement reference points. Both stand. Neither requires disclosure.
• The fix is one sentence at the F&I desk. The script and the lender rate references are below.

1. The two numbers inside one number

High risk

Every captive lender publishes a monthly rate sheet for its dealer network. The rate sheet lists the base money factor by term, credit tier, and program. Tier 1 credit means roughly 740+ FICO. The lender will accept any lease written at or above that base, and pays the dealership a commission proportional to how far above the base the lease is written.

What a May 2026 rate sheet looks like, in plain language:

Lender:        BMW Financial Services
Program:       Standard 36-month lease, 10,000 mi/yr
Tier 1 credit: 0.00180 buy rate
Max markup:    +0.00040 (dealer reserve cap)

What it means: The dealership can write your BMW lease at any money factor from 0.00180 to 0.00220. The bank funds the lease either way. The customer pays the difference, the dealership keeps it. The worksheet shows the final number with no breakdown. The buy rate side of the equation is not on any document the customer sees.

2. The math: what 0.0010 in markup actually costs

High risk

Here is the dollar version on a realistic lease. Cap cost $40,000, residual 60 percent of $40,000 = $24,000, term 36 months. The rent charge portion of the monthly payment is (cap cost + residual) × money factor.

Buy rate vs marked-up rate on the same lease:

Cap cost:          $40,000
Residual:          $24,000
Sum:               $64,000

At 0.00180 (buy):  $64,000 × 0.00180 = $115.20/mo rent charge
At 0.00280 (sold): $64,000 × 0.00280 = $179.20/mo rent charge

Markup cost:       $64.00/mo × 36 months = $2,304 over the lease

What it means: The depreciation portion of your monthly payment, (cap cost − residual) / term, is the same either way. The markup hits only the rent charge. A 0.0010 markup on this lease is closer to $36 per month or $1,296 over 36 months. A 0.0010 markup on a luxury lease with higher cap cost and higher residual ranges from $1,500 to $2,500 over the term. The Reddit and Leasehackr forum patterns of "the dealer said the bank set it, I checked the rate sheet, here is the $1,000 they took" are this exact arithmetic.

3. What "dealer reserve" actually is

High risk

Dealer reserve is a back-end commission. The captive lender pays the dealership a percentage of the marked-up rent charge, usually 50 to 70 percent of the markup, once the lease funds. The dealership treats it as F&I income. It is not a fee disclosed on the lease. It is not a separate line item. It exists entirely inside the money factor.

The CFPB's 2017 Discriminatory Effects of Dealer Markup study found median APR markups of 0.50 to 0.75 percentage points across the auto-finance industry, and disproportionate markups on minority borrowers in particular. That study covered auto loans, but the dealer reserve mechanism on leases works the same way and is structurally less visible because money factor is not required to be disclosed as APR.

The FTC's 2020 settlement with Bronx Honda returned $1.5 million to consumers for, among other things, charging hidden markups in the F&I office without disclosing them. The settlement does not change the disclosure rule. It enforces deception law on top of the existing rule.

4. The May 2026 captive lender base rates

Medium risk

You can find the published buy rates in two places. The first is the Leasehackr monthly rate-sheet threads, one per brand. The second is the CarWhere money factor and residual database. Both source from dealer rate sheets. The table below is the May 2026 set at Tier 1 credit on standard 36-month programs.

Plug your quoted money factor into the calculator below to see your markup in dollars, per month and per term, against any captive lender on the list.

The luxury German captives at BMW FS, Mercedes-Benz FS, and Audi FS run higher base rates because their leases are more aggressively subsidized on the residual side. Toyota and Lexus have the lowest base rates because their captive is the largest auto-finance business in the United States and writes the most volume. The implication for the customer: a 0.0010 markup on a 0.00180 base is a 55 percent markup on the cost of money. A 0.0010 markup on a 0.00128 base is a 78 percent markup. The lower-rate brands are also where the proportional markup is worst.

5. The script that gets the markup back

High risk

The negotiation is one sentence, asked once, after the worksheet is on the desk and before any signatures. The phrasing matters because it forces the F&I manager to either separate the two numbers or admit they will not.

Ask, in this order:

1. "What is the buy rate from the captive lender this month
    on this exact program and term, at my credit tier?"
2. "And how much is the dealer marking it up?"
3. "I want the lease at buy rate, please."

What it means: Most F&I managers have discretion to give back 0.00050 of markup without asking the desk manager. Many will go to the full buy rate if you have a competing pre-approval from a credit union and your timing is at the end of the month. The script removes the polite ambiguity. The buy rate is a number that exists. They have it. Ask for it. If the answer is "the rate is what the bank set," your follow-up is to read the captive's published buy rate off your phone and say, "I have 0.00180 from the May 2026 BMW FS sheet, and you quoted 0.00280. Where is the difference?" The room changes in two seconds.

The other read on this: if the F&I manager refuses to separate buy rate from markup at all, the markup is the answer to the question they will not answer. That is also a useful piece of information.

6. What Regulation M actually requires

Medium risk

The Consumer Leasing Act and its implementing rule, Regulation M at 12 CFR 1013, require specific dollar disclosures on every consumer lease. The required boxes include amount due at signing, gross capitalized cost, capitalized cost reduction, residual value, total of monthly payments, total of payments, and the rent charge in dollars.

The rule does not require the money factor to be disclosed at all. The rule does not require an APR equivalent on a lease the way it does on a loan under Regulation Z. The rule does not require the buy rate from the captive lender. The total rent charge is disclosed as a dollar figure at the bottom of the federal box, but the rate that produced that figure, and the share of it that goes to the dealership as reserve, is not separated.

This is the structural gap the markup lives in. The regulators know about it. The CFPB has studied it. The FTC's vacated 2024 CARS Rule would have required upfront markup disclosure on loans and leases; the Fifth Circuit struck it down in January 2025 and the FTC formally withdrew it in February 2026. The protection is not coming. The script is the protection.

7. When to walk

Low risk

A small markup is the norm. A 0.00050 markup on a $40,000 lease is roughly $432 over the term, and many dealers treat that as a baseline contribution to F&I income that they will not negotiate to zero. That is a reasonable line. A 0.00100 markup is $864 and is reachable with the script above. A 0.00150 or greater markup, combined with refusal to quote the buy rate, is a walk signal. Most metro markets have enough captive-dealer inventory that the same vehicle can be cross-shopped against another dealer in 24 hours.

The other signal: if the F&I manager produces a "rate sheet" on the spot that conveniently shows the marked-up rate as the "buy rate," cross-check it against Leasehackr's published thread for the month. Real captive rate sheets are dealer-confidential documents. The version they show the customer is almost always the program payment grid, not the buy rate. If the document does not say "buy rate" in writing with the lender's name and the month, it is not the buy rate.

Walking is also leverage. The end-of-month and end-of-quarter timing matters. Captive lenders push extra dealer cash and program incentives in the last week, and an F&I manager who lost a deal at 4 p.m. on the 30th will be more flexible at 5 p.m. than the same F&I manager on the 5th.

8. Run your own quote

The math from sections 2 and 4 is what the Redline lease calculator does automatically. Pick the captive lender from the dropdown, enter the money factor on your worksheet, and the markup banner shows the dollar difference per month and across the term against the May 2026 base rate. The calculator does not store your data. There is no signup.

For the full picture of where leases get padded beyond the money factor, car lease red flags covers cap cost stuffing, vanishing trade-in equity, excess wear and tear ambush, and the disposition fee. The money factor markup is the largest of the five in dollar terms on most leases, but it is rarely the only one on the same worksheet.

If you want the broader lease-reading framework, how to read a lease walks through the federal disclosure box section by section and points at where each negotiable lever lives.

Redline reads contracts in plain English. Photograph the lease worksheet, paste the line items, or upload the PDF, and Redline flags money factor markup, cap cost stuffing, and dealer reserve in seconds. One scan, one dollar. Available on iOS and Android.