How to write an invoice that gets paid faster

In this article

Put the amount and the due date in the subject line, send it to a named person instead of an inbox, state the terms in words, and give your customer a way to pay from the invoice itself. Payment method matters more than wording: 72.7% of Apple Pay payments arrive on or before the due date, against 57.9% for bank transfer.

Getting the legal fields right makes your invoice valid, but it won't make anybody pay it any sooner.

The short version

• A valid invoice and a payable invoice are different documents. Get your required fields right, then work on the friction.
• Send to a person, not an accounts@ inbox - more likely to be accelerated.
• Terms written out in words, not inferred from a due date.
• A payment link works better than an attachment: a PDF is a document, a link is an action.
• 42.9% of customer-initiated payments arrive within 24 hours of the request (Adfin platform data). The first two days are key.

The short answer

Remove every step between your customer seeing the invoice and paying it. That means knowing the right recipient, making the ask clear, and giving the person paying the invoice multiple payment methods so they can choose the one that fits their process best.

Before you start

Two things to have in place before you start, because you can't fix either at the point of sending.

Start with the required fields. A UK invoice needs a unique identification number, your details, your customer's details, a description, the supply date, the invoice date, the amounts and the total. Missing fields make your invoice disputable, and a dispute is a delay with a reason attached.

Then find out who actually approves it. On larger invoices the person receiving it often can't authorise it, and finding that out on day 30 costs you a month. Ask once, at the start of the relationship, and record the answer somewhere you'll find it again.

Step by step

1. Set the terms before you invoice, and put them on the invoice in words. "Payment due within 14 days of the invoice date" leaves nothing to infer, while a bare due date invites a conversation about what was agreed.
2. Address it to a named person, because accounts@ is a queue. If your customer insists on the shared inbox, copy a named person in.
3. Put the amount and the due date in the subject line, so it survives being skimmed on a phone.
4. Include the reference your customer needs to pay it: a purchase order number, a project code, a client reference. Larger finance teams won't pay without it.
5. Give them a way to pay from the invoice. A payment link is one action. Entering bank details is a task for your customer: open banking app, type sort code, type account number, type reference, and so on.
6. Offer more than one method, because your payer will use the method they prefer, and the difference between methods is measurable.
7. Send it the day the work completes, not at the month end. Terms usually run from the invoice date, so a week of internal delay is a week of your own cash. (Ideally automate the sending.)
8. Set the follow-up when you send it, not when it goes overdue. If you only decide to chase once the due date has passed, your first reminder lands late.

What the payment data says

Three things from Adfin platform data are worth exploring.

Your payment method changes when you get paid. Of customer-initiated payments, 72.7% of Apple Pay and 70.3% of Google Pay payments arrive on or before the due date. Card is 65.1%, open banking 62.0%, and bank transfer 57.9%. The gap between the top and the bottom is about fifteen percent, which is a more significant difference than rewording an email can ever achieve.

42.9% of customer-initiated payments are made within 24 hours of the request, with a median of 53 hours, and if your invoice isn't paid in the first couple of days it moves into a different, slower population.

Collecting automatically works better than asking. Invoices set to collect automatically are paid 98.0% of the time, usually because a direct debit mandate is already in place. Collected on demand, 90.8% (Adfin platform data, requests created in the seven months to the end of January 2026). For recurring work, a mandate takes the decision out of the invoice altogether.

The small things to get right

Four small things make a difference once the invoice has gone out:

Avoid fluff, make the action clear. Invoice emails should have one amount, one date, one action. An invoice email that explains the work in three paragraphs before the number is an invoice that gets read later.

Try not to rely on attachments, because they get lost in threads and can't be paid from a phone.

A new number series per client is usually more trouble than it's worth. It creates duplicates across your ledger, and it's one of the main reasons a payment can't be matched back to its invoice automatically.

And your first reminder shouldn't be a chaser. A short confirmation that the invoice arrived and is with the right person prevents most of the awkward conversations that follow.

Common questions

What makes an invoice get paid faster? Fewer steps between seeing it and paying it. A named recipient, terms stated in words, the reference your customer needs, and a payment link rather than bank details. Payment method has the largest measurable effect.

Should I put payment terms on the invoice? Yes, in words. "Payment due within 14 days" can't be misread. If you say nothing, the statutory default of 30 days applies, counted from the later of performance and notice of the amount.

Is it better to email an invoice or send a link? Send a link. An attachment is a document your payer has to act on separately, and it can't be paid from a phone in one step.

Does the day I send an invoice matter? Send it as soon as the work is done. Terms usually run from the invoice date, so any delay in raising it isn't your customer's cash, it's yours.

How soon should I follow up on an unpaid invoice? Decide the schedule when you send the invoice rather than after it goes overdue. Most payments that happen quickly happen in the first 48 hours, so a first follow-up that lands a week late has already missed the fast population.

Does adding a late payment interest clause help? The statutory right to interest applies to business debts whether your contract mentions it or not. Saying so on the invoice sets the expectation, which is usually more useful than the interest itself.

This article explains how to make invoices easier to pay and is not tax or legal advice. Last updated August 2026.