Build an estimate from the job, send it for approval, and turn the finished work into an invoice without typing anything twice. VAT is worked out for you.
Building an estimate, getting it approved and raising the invoice.
One record from the first quote to the finished bill.
The work is already on the jobcard, so the estimate builds itself from it. Add parts, set your labour rate and the totals update as you type.

Email the estimate to the customer and let them read it properly. When they approve, the work moves into the job rather than sitting in a separate quote somewhere.

When the work is done, raise the invoice from the jobcard in one click. Your logo, address and VAT number are already on it.
Every invoice shows where it stands, so you know what is a draft, what has gone out and what is still outstanding without digging through a folder.

The job is done and the money is still sat out there somewhere. Here is what changes when the bill writes itself off the jobcard.
The detail behind the feature, without the sales talk.
Raise an invoice from finished work instead of retyping it into another system.
Send a draft as a pro forma when the customer needs the figure before the work starts.
Net, VAT and gross on every line, so the totals hold up when your accountant looks at them.
Send the invoice to the customer from Pistonlog with your garage branding on it.
Every invoice records who raised it and when, so there is never a question about where a number came from.
Pull your sales VAT figures out as a file rather than adding invoices up by hand.
These are the parts of Pistonlog this one works closest with.
The things garage owners ask before they switch.
Set up an account and try it on a real job. No long contract, and you can cancel whenever you like.