Capture the advertisement before it changes
Save the full page or screenshot, including fine print, date, dealer, and stock reference. Promotions expire, inventory changes, and a headline can be separated from its qualifications when shared.
Record these fields:
- year, model, trim, drivetrain, and MSRP;
- monthly payment;
- total due at signing or delivery;
- number of payments;
- annual or total mileage;
- tax and government-fee treatment;
- security-deposit requirement;
- incentive eligibility;
- offer expiration and geography;
- stock or VIN requirement;
- acquisition, disposition, and excess-mile terms when shown.
Normalize payment and cash due
Advertisement A offers $429 per month with $429 due for 36 months. Advertisement B offers $329 per month with $3,995 due for 36 months. Assume each upfront number includes first payment.
| Offer | Headline payment | Due at signing | Effective monthly before excluded items |
|---|---|---|---|
| A | $429 | $429 | $429.00 |
| B | $329 | $3,995 | $430.83 |
Offer B’s payment is $100 lower, but its normalized cost is slightly higher before tax, fees, mileage, and vehicle differences. That does not prove A is better; it proves the headlines were not directly comparable.
Make sure the vehicles are comparable
A lower payment on a lower-MSRP trim is not necessarily a stronger discount or program. Compare MSRP, included equipment, destination charge, and availability.
If you use a simple effective-cost-to-MSRP ratio as a shopping screen, use it only to decide what deserves deeper review. Vehicle segment, residual, term, mileage, tax, incentives, and market conditions make a universal pass/fail threshold unreliable.
Audit every incentive condition
Fine print may assume loyalty, conquest, military, college graduate, employee, association, regional, household, competitive-owner, or returning-lessee eligibility. It may combine incentives that cannot actually be stacked.
For each credit, write:
| Incentive | Amount | Requirement | Do I qualify? | Proof needed |
|---|
Remove unverified credits from your expected offer. Then ask the dealer to confirm eligibility and stackability in writing for the exact VIN and date.
Compare mileage
A 7,500-mile advertisement and a 12,000-mile advertisement sell different usage rights. Convert both to total contract miles and estimate your actual driving.
If the cheaper offer creates likely overage, add the projected amount to its comparison. Use the contract charge when available rather than a generic estimate.
Read what is excluded
Tax, title, registration, dealer fees, acquisition fee, and first payment may be included, excluded, or treated differently. “Plus tax, title, license, and fees” can represent a meaningful amount and prevents the headline from being the delivered cost.
Ask the dealer for the complete drive-off and payment for your ZIP code. State tax method can be reviewed on the lease tax pages, but local rates and transaction details still require confirmation.
Ask for the worksheet, not just confirmation of the ad
An advertisement is not enough to evaluate selling price, money factor, residual, product additions, trade treatment, or the exact payment. Request a worksheet for the advertised vehicle and ask the dealer to identify any difference from the promotion.
A useful request is:
“Please send the full lease worksheet for the advertised VIN using the stated payment, due at signing, term, mileage, and incentives. Show MSRP, selling price, each incentive, residual, money factor, all fees, tax, and total customer cash.”
Watch for payment substitutions
If the advertised vehicle is unavailable, a store may offer another trim or term at a similar payment. Restart the comparison. A payment match does not preserve MSRP, discount, residual, rate, mileage, fees, or cash due.
Likewise, adding a trade or cash down can recreate an advertised payment on a less favorable underlying deal. Keep trade and customer cash out of the comparison until the advertised structure is understood.
Use ads as a filter, not a verdict
The best advertisement is the one that leads to the best complete written transaction for a vehicle you actually want and qualify for. It may not have the lowest visible payment.
Paste payment, due at signing, and term into the LeaseWorth calculator for a quick comparison. Add the full worksheet later to check payment math, money factor, state tax, mileage, and drive-off detail.
Sources and review notes
LeaseWorth prefers current government rules and consumer guidance, then official lender documents for program-specific details. Read our editorial and corrections policy.
- CFPB Regulation M: Lease Advertising — Current disclosure rules for advertised payments, amount due, term, deposits, and end charges.
- FTC: Car Dealer Ads and Promotions — Guidance on written price, eligibility, add-ons, and promotion details.
- FTC: Financing or Leasing a Car — Recommends comparing complete written costs instead of payment alone.
Published August 9, 2026 · Last reviewed August 9, 2026. Examples are educational estimates, not dealer quotes or financial, legal, or tax advice.