Dealing with Late Payers

Late payment is one of the biggest threats to a healthy UK small business. You can be profitable on paper and still run out of cash if customers sit on your invoices for weeks beyond the due date. The good news is that most late payment is preventable, and almost all of it is manageable once you have a clear, repeatable system. This guide covers how to set terms that get respected, chase money politely but firmly, and use your legal rights when you have to.

The real cost of late payment

A late invoice is not just an inconvenience. Every day money sits outside your business, you are lending it to your customer interest-free while still paying your own suppliers, staff and VAT. The hidden costs add up quickly:

Overdraft interest or borrowing to cover the gap
Time spent chasing instead of selling or delivering
VAT you may owe to HMRC before the customer has even paid you
Lost opportunities because cash is tied up rather than reinvested

Understanding this cost is the first step. The goal of credit control is not to be aggressive; it is to keep the cash you have already earned moving through your business. For the wider picture, see our improving working capital guide.

Set clear payment terms from the start

Most disputes about when a payment is due come from vague terms. Be specific on every invoice and quote. A clear term states the number of days, the due date, the accepted payment methods and what happens if payment is late.

Strong terms typically cover:

Payment period (for example, 14 or 30 days from the invoice date)
Bank details and accepted methods, including card or online payment
A late payment clause referencing statutory interest
Whether a deposit is required before work begins

Agreeing terms in writing before you start work removes most arguments later. Our setting payment terms guide goes deeper, and you can find practical templates in our invoicing and payments guides .

Credit checks and limits

Before extending generous terms to a new business customer, do a little homework. For limited company customers, a free look at Companies House shows whether accounts are filed on time and whether there are signs of distress. A credit reference check adds payment behaviour data.

Set a sensible credit limit for each customer and review it as the relationship grows. For larger or riskier orders, ask for a deposit or staged payments rather than carrying the whole risk yourself.

A polite but firm chasing routine

The single most effective change most businesses make is to chase consistently, on a schedule, every time. A predictable routine signals that you take your terms seriously without ever needing to be rude.

Stage	Timing	Action	Tone
Pre-reminder	A few days before due date	Friendly “invoice due soon” note	Helpful
First reminder	Day after due date	Email restating the amount and due date	Polite
Second reminder	About a week overdue	Email plus a phone call	Firm but friendly
Final notice	Two to three weeks overdue	Formal letter mentioning interest and next steps	Firm
Escalation	Beyond your final notice	Debt collection or legal action	Formal

Keep records of every contact. Sending reminders automatically from your accounting software saves time and ensures nothing slips. Linking your invoicing to online payment options also removes friction, as covered in our taking card and online payments guide.

Statutory interest and compensation

When you sell to other businesses, UK law gives you the right to charge statutory interest on overdue commercial debts, plus fixed compensation for the cost of recovery. You can claim this even if your invoice did not mention it, although stating it up front makes customers take deadlines more seriously.

In practice:

Interest runs from the day after the agreed due date at the applicable statutory rate
You can claim a fixed sum in compensation per overdue invoice, on a sliding scale by debt size
You may also recover reasonable debt recovery costs above that fixed sum

Many businesses calculate the interest, show it on a statement, then waive it as a goodwill gesture once the principal is paid. Used carefully, the threat of interest is often more useful than the interest itself.

Payment plans and genuine disputes

Not every late payer is a bad payer. Some are simply short of cash, and a sensible payment plan recovers far more than an aggressive approach that pushes a customer into silence. Agree the schedule in writing, ask for a first instalment immediately, and keep the original due date for interest purposes.

A dispute is different. If a customer claims the work or goods were faulty, pause the clock on that specific item, resolve the issue quickly, then reissue or credit as needed. Never let a small dispute become an excuse to withhold an entire invoice. Clean, itemised invoices reduce disputes in the first place, as explained in our how to write an invoice guide.

When to escalate or use a debt collector

If your final notice passes without payment or a credible plan, escalate. Options include:

A letter before action, making clear you intend to pursue the debt formally
A reputable debt collection agency, often on a no-collection-no-fee basis
The Money Claim Online service for undisputed debts (the small claims route)

Escalate sooner rather than later. The older a debt, the harder it is to collect, and the more likely the customer is in real trouble.

Preventing repeat offenders

Once an account is settled, decide whether you still want the customer. For persistent late payers, tighten the relationship rather than cutting it off automatically:

Move them to payment in advance or shorter terms
Reduce their credit limit
Require deposits on future orders
Pause further work while an invoice is overdue

Good credit control is mostly about consistency. Set fair terms, chase on a schedule, know your rights, and reserve escalation for the few who force it. Do that, and late payment stops being a recurring crisis and becomes a manageable part of running the business.