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VAT-compliant garage softwarefor modern workshops.

Build estimates, send approval links, issue invoices, record payments, and keep cleaner accountant handoff from the same system that runs bookings, bays, and customer records.

Estimate approvals and public linksPartial payments, credits, and reissue workflowsVAT, TRN, and finance exports
See Accounting Workflow

From estimate approval to paid invoice

autoGMS keeps the commercial workflow together: quote clearly, collect approvals, issue VAT-ready invoices, and handle corrections without spreadsheet drift.

Public estimate approvals

WhatsApp or email delivery with line-by-line customer decisions

Payment tracking

Partial, full, due, and overdue states tied to the invoice ledger

Audit-safe corrections

Void and reissue, replacement history, and credit-note workflows

See Billing in Action

Billing breaks when the workshop stack is disconnected

autoGMS keeps estimates, approvals, invoices, payments, and finance exports tied to the same workshop record. That means less manual reconciliation, cleaner VAT handling, and fewer surprises when commercial details change after the job starts.
Walk through the billing flow

When estimate decisions live in screenshots, calls, and message threads, workshops slow down and approved work slips through the cracks.

VAT-ready commercial workflow built into daily operations

This is not just a tax checkbox. It is the estimates, invoicing, payment, correction, and accountant-handoff layer that sits inside the garage workflow.

Estimate approvals

Send estimates customers can review and approve from any phone

Build itemized estimates with services, parts, labor, kits, and external work, then send a public approval link by WhatsApp or email. Customers can approve, decline, or defer individual items without needing an account.
VAT-ready invoicing

Turn approved work into VAT-ready invoices without double entry

Move from approved estimate to invoice using the same commercial data. Keep tax totals, TRN details, due dates, invoice defaults, and customer delivery tied to the job instead of rebuilding documents line by line.
Payments & cash collection

Record partial and full payments with cleaner due-state visibility

Track what is paid, due, overdue, or partially settled from the invoice record itself. That is especially useful when paired with garage accounting and financial reporting for better cash visibility.
Corrections & audit trail

Use void, reissue, and credit notes instead of editing history in place

Keep pre-payment and post-payment corrections clean with version timelines, replacement invoices, and credit notes. That preserves auditability instead of forcing the team to patch old documents manually.
Accountant handoff

Keep exports, VAT totals, and billing records easier to trust at month-end

The goal is not just compliance language. It is a cleaner operational billing layer that makes owner review faster and external accountant handoff less painful, especially when you also rely on garage analytics and inventory and COGS visibility.

Commercial workflows that stay clean under pressure

The real differentiator is not a single invoice screen. It is how autoGMS keeps approval, payment, correction, and export workflows tied back to the same workshop record.

Line-item customer approvals

Customers can approve some items, decline others, or defer decisions without forcing a full yes or no.

Versioned estimates when scope changes

Sent or responded estimates create new versions automatically so the customer always sees the latest approved commercial story.

Invoice defaults and due-date control

Set bank details, due days, prefixes, and terms once so every new invoice starts from the right commercial baseline.

Partial payments and linked history

Track payment method, amount, and remaining balance from the invoice ledger without separate cash spreadsheets.

Void, reissue, and credit-note safety

Fix billing errors the right way depending on whether the invoice is unpaid, partially paid, or settled.

Cleaner finance exports and handoff

Keep billing records closer to workshop operations so owners and accountants spend less time reconstructing what happened.

Built for operational workshop billing, not year-end statutory close. Use autoGMS to stay on top of estimates, invoices, VAT, payments, and corrections, then hand cleaner records to your accountant. If finance visibility matters beyond billing, the garage accounting page and public API story are the next layers.

See the estimate-to-invoice flow in a live demo

Walk through approvals, VAT-ready invoicing, payment tracking, corrections, and accountant handoff with the autoGMS team.

VAT & Invoicing FAQs

Questions workshop owners ask when they want cleaner estimates, invoices, and payment workflows without bolting together separate finance tools.

Related billing resources