Free, no sign-up. The wording, chase emails and figures I use to get small engineering and manufacturing firms paid faster. Copy them into your own quotes, invoices and email.

What late payers cost you

Take your annual sales, divide by 365, and multiply by the number of days your customers pay later than your terms. That is the cash your customers are holding instead of you.

Annual salesCustomers payCash held by your customers
£2m15 days late£82,000
£4m20 days late£219,000
£6m25 days late£411,000

That is cash you can’t use for stock, wages or growth. Chasing earlier frees it up without asking anyone else for money.

Payment terms and the law

If you haven’t agreed a payment date with a business customer, UK law treats payment as late 30 days after they get the invoice or you deliver, whichever is later. Agreed terms between businesses should usually be no longer than 60 days.

Your strongest tools are not legal ones. They are clear terms agreed before the work starts, a due date on every invoice, a chase that happens on the same days every time, and the willingness to pause work for customers who don’t pay.

Payment terms wording

Put this on every quote, order acknowledgement and invoice. Terms that only appear on the invoice are the easiest to argue with.

On quotes and order acknowledgements

Payment terms: 30 days from the date of invoice. [For orders over £X: 30% on order, the balance on delivery.] Further work and deliveries may be put on hold on any account more than 14 days overdue.

On invoices

Payment due by [date]: 30 days from the date of this invoice. Please quote invoice [number] with your payment. Further work and deliveries may be put on hold on overdue accounts.

Put a due date on the invoice, not just “30 days”. A date gets paid; a number of days gets calculated, by the customer, generously.

The chase sequence

Same steps, same days, every invoice. Most late payment is not refusal; it is your invoice sitting at the bottom of someone’s pile.

WhenWhatWho
3 days before dueFriendly reminder email with the invoice attachedAccounts
7 days overdueFirm email asking for a payment dateAccounts
14 days overduePhone call, then an email confirming what was promisedAccounts, or you for big customers
30 days overdueFormal letter with a 7-day deadline and a clear consequenceYou
After the deadlineStop further work or deliveries; consider the small claims court or a collection agencyYou

Email 1: 3 days before due

Subject: Invoice [number] due on [date]

Hi [name], a quick note that invoice [number] for £[amount] is due on [date]. A copy is attached. If anything on it needs correcting, let me know this week so it doesn’t hold up payment. Thanks, [your name]

Email 2: 7 days overdue

Subject: Invoice [number] is now overdue

Hi [name], invoice [number] for £[amount] was due on [date] and we haven’t received payment. Can you tell me the date it will be paid? If there is a problem with the invoice, tell me and I’ll sort it today. Our bank details are [details]. Thanks, [your name]

Email 3: 14 days overdue, after the phone call

Subject: Invoice [number]: payment on [promised date]

Hi [name], thanks for speaking to me today. As agreed, invoice [number] for £[amount] will be paid on [promised date]. I’ll check our account that day. Thanks, [your name]

Letter 4: 30 days overdue

Subject: Overdue account: invoice [number]

Dear [name], invoice [number] for £[amount] is now 30 days overdue, despite our reminders on [dates].

Please make payment by [date: 7 days from now]. If we have not received it by then, we will put all further work and deliveries on hold until the account is settled, and may pass the debt to a collection agency.

Yours sincerely, [your name]

A dated deadline with a real consequence gets paid; a vague request to “pay soon” gets filed. Use your judgement with your best customers, but don’t let one customer’s habit set your cash flow.

Stop it happening in the first place

  • Invoice the day the job is finished. Every day between completion and invoice is a day added to how long you wait for cash.
  • Take deposits or stage payments on large or long jobs, and on materials you buy in specially.
  • Check new customers before giving credit: a credit check costs a few pounds; a bad debt costs the margin on ten jobs.
  • Set a credit limit for each customer, and stop work when an account goes over it or past 60 days.
  • Automate the reminders. Most accounts packages, including Xero, QuickBooks and Sage, can send reminder emails automatically, so nobody has to remember.

This is general guidance, not legal advice. Check your own contracts before stopping work.