Mobile mechanic invoice wording and payment terms

The exact sentences to put on a mobile mechanic's invoice — description lines that stop questions, payment terms that hold up, and warranty wording customers trust. Copy any block with one tap.

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Copy-and-paste blocks

  • Payment terms

    Payment is due within 15 days of the invoice date. We accept ACH transfer, card and check. Please include the invoice number with your payment.

  • Description line

    Front brake pads and rotors replaced — Ford Focus 1.0, VIN on file, 78,420 miles. A call-out or diagnostic fee, labor at an hourly rate or by book time, and parts at your supplied price — itemized below.

  • Late payment

    Balances unpaid after the due date may be subject to a late fee as permitted by state law and as set out in our agreement. We will always contact you before applying one.

  • Deposit and scheduling

    A deposit is required to schedule the work and to cover materials. The balance is due on completion. Deposits are applied to the final invoice and shown as a credit line.

  • Warranty

    Our workmanship is warranted for 12 months from the date of completion. Manufacturer warranties on supplied materials apply in addition and are passed through to you in full.

  • License and insurance

    Licensed and insured. Your ASE certifications, business license and liability insurance available on request and shown on this invoice where applicable.

Getting the terms to stick

Take payment on site by card or transfer. Fleet accounts are the exception: invoice against their PO monthly and expect 30-day terms.

Terms only bind if the customer agreed to them before the work, so put them in the estimate or contract as well as on the invoice. Late fees and finance charges are regulated at state level, so check what your state allows before you set a rate.

Common questions

Should diagnosis be credited against the repair?
Your call, but say which on the invoice. Many mechanics show the diagnostic charge and then discount it visibly as a line when the repair is booked.
How long should a parts warranty be?
Twelve months or 12,000 miles is the common standard for installed parts. Put it on the invoice so there is no argument if the part fails.
Do customer-supplied parts change anything?
Yes — note that you warranty labor only on customer-supplied parts, on the invoice, every time.

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