The fastest way to send invoices to customers

Last updated: September 2026

Why invoices are actually late

Ask why an invoice went out three weeks after the work and the answer is almost never “it took a long time to type”.

It is one of three things. Nobody was sure what to charge, because the job changed and the agreement was verbal. Nobody was sure the job was finished, because there was no write-up. Or nobody had a list of finished jobs, so the invoicing happened when someone remembered rather than when work completed.

Speeding up the typing solves none of those. Removing the three causes does, and it is where the whole of this page points.

Remove the three delays

1. Agree the price in writing before the work. A quote the customer accepted is an invoice waiting to happen. Verbal agreements have to be reconstructed, and reconstruction is where the days go.
2. Make completion mean something specific. A job is finished when the write-up and photographs are on it, not when the van leaves. Then “finished” and “billable” are the same state.
3. Keep a list of finished, unbilled jobs. Not in a head. A visible list, looked at daily, is the whole of invoice discipline.

Where Dispatch fits

The path is short by design. Accepting a quote drafts the final invoice from the agreed figures, so the pricing question is already answered. An engineer can draft or adjust the invoice on site from a phone browser, tapping charges from your own catalogue rather than typing them.

Issuing is an office act and is what allocates the permanent number from your INV series. The invoice goes out as a branded PDF by email, and the customer opens a private link to read it and pay by card, with the money landing in your own bank account.

The dashboard carries a tile for jobs ready to invoice, which is the visible list in point three, and another for outstanding invoices once they are out. Between them, “who have I not billed” stops being a question you answer from memory.

For a same-day loop that is: complete the job on site with the write-up, office issues the invoice, customer pays from the link, payment recorded against the invoice automatically.

What speed is worth

A useful figure to know about your own business: the average number of days between a job being completed and its invoice being issued.

Most small trades businesses who measure it for the first time find a number between five and fifteen. Getting it to one is worth a meaningful amount of working capital, and it costs nothing but sequencing.

It also improves the chances of being paid at all. An invoice arriving the day after the work is remembered and expected. An invoice arriving three weeks later has to be reconstructed by the customer too, which is exactly when queries appear.

Speed without carelessness

Three habits stop fast invoicing from becoming sloppy invoicing.

Describe the work as the customer experienced it. “Traced fault to failed isolator, replaced and tested” beats “labour and parts” and heads off the query.

Attach the evidence to the job, so the photographs exist even though they are not on the invoice itself.

Never edit an issued invoice. Void it while unpaid or credit it once paid. Speed is not a reason to blur the numbering.

And then chase properly

Fast invoicing only pays off if the follow-up is equally routine. Decide the sequence once rather than deciding each time whether someone feels overdue enough to bother.

Automatic reminders can go to the customer at 3, 10 and 21 days past the payment date in your own business name, once switched on in Settings, and then stop for good. They are never sent for an invoice you did not email in the first place.

Beyond that it is judgement, and chasing unpaid invoices covers the wording that gets you paid without losing the customer, while getting paid faster covers the cash flow picture as a whole.