How to stop chasing unpaid invoices: a simple system for small businesses
A practical system for UK small businesses to get invoices paid on time: clear terms, consistent invoices, polite automatic reminders and a weekly overdue list.
In this guide
Late payment is one of the most common headaches for small businesses in the UK. The work is done, the customer was happy, and yet the money still hasn’t arrived three weeks later. Chasing it is awkward, easy to forget and eats into evenings.
The good news is that most late payment isn’t malicious. It’s usually a lost email, an unclear due date or an invoice that went to the wrong person. A simple, consistent system fixes most of it.
1. Agree the terms before you start
Payment problems often start at the quote stage. Put your terms in writing before any work begins: the total price, when payment is due, and whether a deposit is needed. Common terms are 14 or 30 days from the invoice date. For bigger jobs, many businesses take a deposit up front, often 50%, and the balance on completion.
2. Make every invoice easy to pay
An invoice that raises questions gets put to one side. Each one should include:
- a unique invoice number and the invoice date;
- a clear due date (an actual date, not just “14 days”);
- what the work was, in words the customer will recognise;
- the total, with VAT shown separately if you’re VAT registered;
- how to pay: bank details or, better, a payment link they can tap.
Retyping all of that into a Word template every time is where mistakes creep in. The invoice generator demo shows how a simple tool can number invoices, work out VAT and produce a consistent PDF in seconds.
3. Send it straight away
The clock only starts when the invoice arrives. Invoicing on the day the job finishes, while the customer is still pleased with the result, is one of the easiest ways to get paid faster. If you batch invoices at the end of the month, every customer effectively gets extra credit.
4. Use polite, automatic reminders
Most people pay when they’re reminded. The problem is remembering to remind them. A simple schedule works well:
| When | Message |
|---|---|
| 3 days before due | Friendly heads-up with the payment link |
| On the due date | “Just a reminder this is due today” |
| 7 days overdue | Polite but firm, invoice attached again |
| 14 days overdue | Phone call or personal email from you |
Accounting software such as Xero or QuickBooks can send these for you. If you invoice from a spreadsheet, a simple invoicing web app can track due dates and show you who needs a reminder each morning.
Automatic reminders take the awkwardness out of chasing. It’s not you being pushy; it’s just the system.
5. Keep one list of what’s owed
Once a week, look at a single list: who owes what, and how overdue it is. If that means opening three systems and a banking app, it won’t happen. A tidy sheet or a simple dashboard that shows outstanding invoices, sorted by days overdue, makes the weekly check a two-minute job. The sales dashboard demo shows the kind of view that helps.
6. Know your rights
For business-to-business invoices in the UK, the Late Payment of Commercial Debts legislation lets you claim statutory interest and a fixed compensation amount on late payments. Most small businesses never use it, but it’s worth knowing it exists, and mentioning it in your terms can encourage prompt payment. Check the current rules on GOV.UK before relying on them.
Where to start
- Write your payment terms down and add them to your quote template.
- Make sure every invoice has a due date and a payment link.
- Set up reminders, in your accounting software or a simple invoicing app.
- Book a weekly ten-minute slot to review what’s owed.
If your invoicing lives in spreadsheets and you’d like the numbering, PDFs or reminders handled for you, send me a quick description of how you invoice now. I’ll tell you what’s worth automating and give you a fixed price.