Lemon Law Buyback Calculation: The Refund Formula, Step by Step

The buyback formula, step by step

1. 1

   Total what you actually paid

   Down payment + every monthly payment made + the remaining loan payoff + sales tax, registration, and official fees. On a lease: payments made plus drive-off costs. Dealer add-ons rolled into the contract (extended warranties, service contracts) are generally refundable too — pull the purchase contract and list every line.

2. 2

   Add incidental and consequential costs

   Towing, rental cars during repair visits, rideshares to the dealer, even repair attempts you paid for out of pocket. Statutes expressly allow these — they are the most commonly forgotten money in buybacks. Receipts turn them from anecdotes into line items.

3. 3

   Compute the mileage (use) offset

   The manufacturer deducts for your trouble-free use. California’s statutory formula — the model many negotiations reference — is: purchase price × (miles driven before the FIRST repair attempt for the defect ÷ 120,000). Only pre-problem miles count; everything you drove after the defect surfaced is on the manufacturer.

4. 4

   Subtract the offset, check the sanity

   Amounts paid + incidentals − offset = the buyback. If the manufacturer’s number is lower, the discrepancy is nearly always in step 1 (missing line items) or step 3 (using current mileage instead of first-repair mileage — a favorite quiet error).

5. 5

   Attorney fees ride on top

   Most state lemon laws are fee-shifting: a prevailing consumer’s reasonable attorney fees are paid by the manufacturer, on top of — not out of — the buyback. It is why lemon law attorneys commonly work without charging the consumer, and why manufacturers settle calculable claims.

A worked example (California-style formula)

Illustrative numbers to make the formula concrete — labeled as an example, not a promise:

• The setup

  A $32,000 new SUV develops a transmission defect at 9,000 miles. Three repair attempts fail across 34 days out of service. The owner has paid $6,000 down, $4,400 in payments, and owes $23,900; taxes and fees were $2,900; rentals and towing ran $700.

• The offset math

  Mileage offset = $32,000 × (9,000 ÷ 120,000) = $2,400. Only the 9,000 pre-defect miles count — the miles driven to and from four dealer visits afterward do not.

• Why the number holds up

  Because every input is a document: the contract, the payment history, the repair orders with dates and mileage in/out, and the receipts. Buyback negotiations are records fights, not rhetoric fights.

States without a statutory formula negotiate “reasonable” offsets — where knowing the California math still matters, because it anchors what reasonable looks like.

Buyback vs. replacement vs. cash-and-keep

Repurchase is not the only remedy — and manufacturers often prefer the alternatives. Know all three before choosing.

State differences that change your number

What kills lemon claims (avoid all five)

• No written repair orders

  The claim is built from repair orders showing dates, mileage, complaint, and work performed. Verbal “we looked at it” visits do not exist legally — insist on paper every visit, and check that YOUR reported complaint is written on it.

• Skipping the manufacturer notice

  Several states require written notice to the manufacturer (not just the dealer) and a final repair opportunity before the presumption attaches. Certified mail, short letter, keep the receipt.

• Repairs outside the authorized network

  Warranty repair attempts count when performed by authorized dealers. An independent shop fixing the same defect can muddy both the count and the causation.

• Aftermarket-modification causation

  Manufacturers deny where a modification plausibly relates to the defect. A tune or lift kit near the failing system is a defense waiting to be raised — disclose honestly and get the dealer’s findings in writing.

• Waiting out the window

  Presumption windows are measured in months and miles from delivery, and statutes of limitation run separately. Every extra “one more repair attempt” month spends both clocks — check the module below before you wait.