Make every authorised part and labour hour easy to reconcile.
A repair invoice has to connect the estimate, customer authorisation and completed work. InvoiceSonic separates parts from labour, records the vehicle and job reference, and keeps the invoice visible until the customer or insurer pays.
Built for mechanics and auto-repair shops · Mobile and web · No InvoiceSonic transaction fee
One record from agreed work to payment — Bill diagnostic fee plus authorised parts and labour, with supplements approved before the final invoice. Keep the vehicle year, make, model, VIN, mileage and repair-order number on the invoice so the client can approve it without asking what the charge covers.
Enter the actual job details, review the totals and preview your invoice. You can start without an account. Downloads follow the free-tool limits; saving, tracked sending and reminders are available with an account.
Reuse the descriptions mechanics and auto-repair shops actually bill: diagnostics, technician labour, parts with part numbers, shop supplies, fluids and disposal fees. Totals and tax recalculate automatically.
Carry the agreed scope into the invoice and show deposits or staged payments separately, rather than rebuilding the price from memory.
Put the vehicle year, make, model, VIN, mileage and repair-order number on the invoice so the customer, broker or bookkeeper can match it quickly.
Track sent, viewed, partially paid, paid and overdue invoices from one list instead of cross-checking email and a spreadsheet.
State payment before vehicle release, or the agreed insurer/fleet account terms; if the balance passes that date, a polite reminder can go out automatically.
Add bank transfer, PayID, Venmo, Zelle, Cash App or PayPal details. InvoiceSonic never takes a percentage of the invoice.
Choose the customer and carry across the agreed price, scope and vehicle year, make, model, VIN, mileage and repair-order number.
Add diagnostics, technician labour, parts with part numbers, shop supplies, fluids and disposal fees; show tax, deposits and any approved variation as separate lines.
Set payment before vehicle release, or the agreed insurer/fleet account terms, send the invoice while the job is current, and follow the status until payment is recorded.
The document should make the commercial history obvious to both mechanics and auto-repair shops and their customer.
Takeaway: The strongest invoice mirrors the accepted scope, proves which job it belongs to and leaves one unambiguous balance to pay.
Create the job invoice now, then save the customer, status and reminder workflow when you are ready.
Start the 7-day trialIt should support diagnostic fee plus authorised parts and labour, with supplements approved before the final invoice, reusable customers and line items, tax calculation, clear payment terms, delivery status, partial-payment tracking and overdue reminders. A full accounting or dispatch suite is optional; the billing workflow is not.
Include both parties, a unique invoice number, issue and due dates, vehicle year, make, model, VIN, mileage and repair-order number, and itemised charges such as diagnostics, technician labour, parts with part numbers, shop supplies, fluids and disposal fees. Show tax, payments already received and the remaining balance separately.
Yes. InvoiceSonic works in a mobile browser and on iPhone and iPad, so you can create and send the invoice close to the work instead of batching it later.
Yes. Record payments against the invoice, keep the remaining balance visible and use sent, viewed, paid and overdue status to decide the next action.
No. InvoiceSonic does not take a percentage of the invoice. A third-party card processor may charge its own fee; bank transfer and supported local payment rails can provide a lower-cost option.
A useful billing system starts with an invoice the customer can verify. Set up the job details, agree the charging basis and check the balance before you automate follow-up.
Separate the diagnostic authorisation from the approved repair. Identify the vehicle and explain which labour and parts the estimate includes. If the repair changes after inspection, document the revised work and approval before billing it.
Include the vehicle reference, repair-order number, visit date and relevant mileage record. Check the legal billing name and delivery contact against the accepted work. Keep the approved estimate, additional repair authorisation, parts supplied and labour record available to resolve questions. An invoice records the charge; it does not replace the underlying approval or supporting documents.
Diagnosis is separate here because the agreement bills it separately. If the diagnostic charge is credited against the repair, reflect that agreement rather than automatically charging both in full.
| Description | Quantity | Rate | Amount |
|---|---|---|---|
| Diagnostic labour | 1 | 85.00 | 85.00 |
| Approved repair labour | 2 | 85.00 | 170.00 |
| Replacement component | 1 | 140.00 | 140.00 |
| Example subtotal | 395.00 | ||
Listing one total for ‘repair’ makes it hard to distinguish labour, parts and previously approved extras. Use clear descriptions and avoid presenting a part as replaced when it was only inspected or repaired.
For fleet work, include the customer’s vehicle and purchase-order references. If a third party is paying, confirm the authorised payer and scope; an owner’s approval does not necessarily establish a warranty provider’s payment obligation.
The free browser tool prepares the document. Saving customers, sending tracked invoices and managing reminders require an account and are subject to plan limits. Payment status needs accurate payment records; an invoice view alone does not confirm payment.