Unauthorized Auto Repair Charges Dispute Letter (Free Template + State Repair-Estimate Laws)

[Your Full Name]
[Your Address]
[City, State ZIP]
[Phone] [Email]

[MM/DD/YYYY]

[Repair Shop Legal Name]
[Shop Address]
[City, State ZIP]

Sent via certified mail, return receipt requested
(Copy also emailed to [shop email] for the record.)

Re: Demand for Refund of Unauthorized Repair Charges — Repair Order #[Number], [Vehicle Year/Make/Model], VIN [Last 6 digits]

Dear [Shop Manager / Owner Name]:

I am writing to formally dispute charges billed to me on [Date of Invoice] that exceeded the written estimate I received and/or that I never authorized, in violation of [State]'s automotive repair statute.

Facts:
  • Date vehicle dropped off: [Date]
  • Written estimate provided: [Yes/No — if yes, attach copy] for $[Estimate Amount], on [Date Estimate Given]
  • Work I actually authorized: [Describe exactly what you approved — quote any text message, phone call, or signed authorization]
  • Final invoice amount: $[Invoice Total]
  • Amount charged beyond what I authorized: $[Disputed Amount]
  • How I learned of the additional work: [Describe — e.g., "only when I arrived to pick up the vehicle and was presented with the final invoice"]
  • Any contact from the shop before performing the additional work: [None / Describe call or text and when it occurred relative to the work being done]

Legal basis:

  Under [State]'s automotive/motor vehicle repair statute, a repair shop may not charge for labor or parts beyond a written estimate without first obtaining my written or oral authorization, documented with the date, time, and dollar amount approved:
  • California: Bus. & Prof. Code § 9884.9 — no charge for work or parts in excess of the estimate without customer consent, which must be documented (in writing, or orally with date/time/name/phone/cost noted on the invoice or a customer signature confirming approval).
  • New York: Vehicle & Traffic Law § 398-d — a shop "shall not charge for work done or parts supplied in excess of the estimate without the consent of such customer."
  • Florida: Fla. Stat. § 559.905 — shops must present a written estimate or a cost ceiling the shop "may not exceed... without my written or oral approval," and must disclose this in writing before beginning work costing over $150.
  • Washington: RCW 46.71.025 — a repair facility may not charge more than 110% of the written estimate without the customer's oral or written authorization to exceed it.

  [If your state has no repair-specific statute, delete the above and cite your state's general Unfair or Deceptive Acts and Practices (UDAP) / Consumer Protection Act instead — charging for unauthorized work is a textbook unfair or deceptive practice in every state.]

  Regardless of the specific statute, billing a customer for work never authorized also constitutes breach of contract (no meeting of the minds on the additional scope) and, in most states, an independently actionable unfair or deceptive trade practice.

Demand:

  Within [14] days of receipt of this letter, please refund $[Disputed Amount] — the portion of the bill I did not authorize — by [check mailed to the address above / credit to the card on file].

  I am not disputing the portion of the bill I did authorize: $[Authorized Amount]. This is a targeted dispute of the unauthorized overage only.

If I do not receive a refund or a written response within [14] days, I will:
  • File a complaint with [state regulator — CA Bureau of Automotive Repair (BAR); NY DMV Motor Vehicle Repair Shop Registration Program; FL Department of Agriculture and Consumer Services (FDACS); WA Attorney General's Office] and request restitution and an investigation of this shop's registration.
  • Dispute the charge with my credit card issuer as an unauthorized/incorrect-amount transaction under the Fair Credit Billing Act, if paid by credit card.
  • File a complaint with my state Attorney General's consumer protection division and, where applicable, small claims court for the disputed amount plus statutory damages and fees available under [State]'s consumer protection act.

Please send your written response to the address above.

Sincerely,

[Your Signature]
[Your Printed Name]

Enclosures: [written estimate (if any); final invoice; any text/email/call records showing what was or wasn't authorized; photos of the vehicle/repair order]