How to Stop Customers Paying You Late
Late-paying customers are one of the biggest cash flow problems facing growing businesses.
You can have a healthy sales pipeline, strong profit margins and plenty of work coming in — but if customers aren't paying their invoices on time, your bank account can still come under pressure.
And as your business grows, the problem can become even more significant.
A customer who owes you £5,000 might be frustrating.
Ten customers who owe you £5,000 each is a £50,000 cash flow problem.
The good news is that late payment isn't something you simply have to accept.
With the right processes, payment terms and credit control, you can significantly improve how quickly customers pay you.
Here's how.
Why Do Customers Pay Late?
Before looking at how to improve your credit control, it's worth understanding why customers don't pay on time.
Sometimes it's because they simply don't have the money.
But often there are other reasons.
Your invoice might:
Have been sent to the wrong person
Contain an error
Not include a purchase order number
Have unclear payment terms
Require approval from several people
Have been overlooked
Be sitting in an accounts department waiting to be processed
In some cases, customers may also deliberately delay payment because they know the supplier isn't likely to chase them.
This is why having a consistent credit control process is so important.
You shouldn't rely on customers remembering to pay.
You should have a system that makes payment as easy and as expected as possible.
Start With Clear Payment Terms
The first step in improving your cash collection is to make your payment terms clear.
Your customers should know:
How much they owe.
When payment is due.
How they should pay.
What happens if payment is late.
For example, your terms might state that invoices are payable within 30 days.
The important thing is that the payment terms are agreed before you start doing the work.
Don't wait until an invoice is overdue to tell a customer that you expected payment within 30 days.
Make your terms part of your initial quotation, proposal or contract.
Don't Be Afraid to Ask for Payment
Many business owners feel uncomfortable chasing customers for money.
They might worry about damaging the relationship.
But remember:
You're not asking for a favour. You're asking to be paid for something you've already provided.
If you've completed the work and issued a valid invoice, asking for payment isn't unreasonable.
In fact, professional businesses generally expect suppliers to have credit control processes.
The key is to remain polite, professional and consistent.
Invoice Immediately
One of the easiest ways to improve cash flow is also one of the simplest:
Send your invoices as soon as possible.
If you've completed work on Monday but don't raise the invoice until Friday, you've potentially delayed payment by several days before the customer's payment period has even started.
For project-based businesses, consider invoicing at agreed milestones rather than waiting until the entire project is complete.
For recurring services, automate monthly invoicing where possible.
The sooner the invoice reaches the customer, the sooner the payment clock starts.
Make Your Invoices Easy to Pay
If you want customers to pay quickly, make the process as easy as possible.
Your invoice should clearly show:
Your business name
Customer name
Invoice number
Invoice date
Amount due
VAT, where applicable
Payment terms
Due date
Bank details
Payment instructions
If appropriate, you could also offer online payment methods.
The fewer obstacles there are between the customer receiving your invoice and making payment, the better.
Check the Invoice Has Gone to the Right Person
This sounds obvious, but it's a surprisingly common problem.
You might send an invoice to your usual contact, only for them to forward it internally to the accounts department.
That can add days or weeks to the payment process.
When taking on a new customer, ask:
"Who should invoices be sent to?"
And if there's a purchase order process, understand it before you start work.
For larger customers, there may be specific requirements around:
Purchase orders
Supplier registration
Invoice portals
Invoice references
Approval processes
Get these details right from the beginning.
Follow Up Before the Invoice Is Due
One of the most effective credit control techniques is to start the conversation before payment is late.
For example, if an invoice is due on the 30th, you might contact the customer a few days beforehand.
Something as simple as:
"Just checking that you've received invoice 1234 and everything is in order for payment on the 30th."
This gives the customer an opportunity to tell you if there's a problem.
Perhaps the invoice has gone to the wrong department.
Perhaps there's a query about the amount.
Perhaps they need another document.
You can resolve the issue before the due date.
Have a Credit Control Process
Credit control shouldn't depend on whether you remember to chase someone.
You should have a defined process.
For example:
Before the due date
Send the invoice and confirm receipt.
A few days before the due date
Send a friendly reminder.
On the due date
Confirm payment is being processed.
A few days overdue
Send a firmer reminder.
One week overdue
Contact the customer directly.
Further overdue
Escalate the matter and agree a clear payment date.
Significantly overdue
Consider stronger collection action.
The exact timing will depend on your business and customer relationships.
The important thing is consistency.
Don't Let Invoices Become Invisible
One of the biggest mistakes growing businesses make is not having a clear view of who owes them money.
You should be able to answer:
How much money are customers currently owing us?
Which invoices are overdue?
How old are they?
Who owes us the most?
Which customers regularly pay late?
When are we expecting the money?
If you can't answer those questions quickly, your credit control process probably needs improving.
Monitor Your Debtor Days
Debtor days are a useful measure of how quickly customers are paying you.
If your agreed payment terms are 30 days but your average debtor days are 55 days, you have a problem.
You're effectively financing your customers for an additional 25 days.
As your turnover grows, that can tie up a significant amount of cash.
For example, if your business generates £2 million of annual revenue, every additional 10 days of outstanding invoices represents roughly £55,000 of sales sitting unpaid, using a simple annual-revenue calculation.
That demonstrates why credit control becomes increasingly important as a business scales.
Don't Treat Every Customer the Same
Not every customer needs the same approach.
Some customers might always pay within seven days.
Others might regularly take 60 days.
Understanding your customers' payment behaviour can help you decide where to focus your time.
You might identify:
Reliable customers
Customers who occasionally pay late
Customers who consistently pay late
Customers with large outstanding balances
Customers with a history of disputes
Your biggest credit risk may not necessarily be your customer with the most overdue invoices.
It could be the customer who owes you a very large amount and represents a significant percentage of your total sales.
Set Credit Limits
For some businesses, setting credit limits can be useful.
If a customer has unpaid invoices totalling £20,000, should you continue providing another £20,000 of work?
Perhaps.
But you should at least understand the risk you're taking.
Credit limits can help prevent your exposure to an individual customer becoming unnecessarily large.
For new customers or customers with a poor payment history, you might also consider:
Deposits
Payment in advance
Staged payments
Shorter payment terms
Credit limits
The right approach depends on the nature of your business and the relationship with the customer.
Consider Deposits and Upfront Payments
If you're providing a product or service that involves significant upfront costs, you don't necessarily have to fund everything yourself.
You could consider requesting:
A deposit before work begins.
Payment at agreed milestones.
A percentage upfront.
Payment in advance for certain services.
This can significantly reduce the amount of working capital your business needs.
It also means you're not carrying the entire financial risk of the project.
Resolve Disputes Quickly
Sometimes an invoice is overdue because there is a genuine dispute.
Perhaps the customer believes:
The work wasn't completed correctly
The invoice amount is wrong
Something wasn't included
A service wasn't delivered
The agreed price was different
Ignoring the problem won't make it disappear.
Speak to the customer and establish exactly what the issue is.
If the customer has a legitimate concern, resolve it quickly.
If the invoice is correct, explain why and agree a payment date.
The important thing is to avoid letting a £500 dispute turn into a £10,000 overdue balance because nobody addressed it.
Pick Up the Phone
Email is useful.
But sometimes a phone call is far more effective.
A simple:
"Hi, I'm just calling about invoice 1234, which is now overdue. Can you let me know when we can expect payment?"
can achieve more than several automated emails.
You don't need to be aggressive.
You simply need to be clear.
The purpose of the call is to establish:
Is there a problem?
Who is responsible for paying it?
When will the payment be made?
Try to get a specific date rather than:
"We'll pay it soon."
A specific commitment is much more useful.
Don't Keep Supplying Customers Who Won't Pay
This can be one of the hardest decisions for a business owner.
If a customer already owes you £20,000 and continues ordering more work, you're increasing your exposure.
At some point you may need to consider putting further work on hold until the outstanding balance is addressed.
This needs to be handled carefully, particularly where contracts or ongoing services are involved.
But continuing to provide unlimited work to a customer who isn't paying can turn a manageable problem into a serious one.
Automate Your Credit Control
As your business grows, manually chasing every invoice becomes increasingly time-consuming.
Accounting software can help automate parts of the process.
For example, you can often automate:
Invoice reminders
Statements
Payment notifications
Recurring invoices
Overdue reminders
Automation doesn't replace human contact.
A customer who is 90 days overdue may require a phone call rather than another automated email.
But automation can make sure routine reminders happen consistently.
Make Someone Responsible for Credit Control
If everyone is responsible for credit control, there's a risk that nobody is actually responsible.
Someone should own the process.
They should regularly review:
Outstanding invoices
Overdue invoices
Customer payment behaviour
Debtor days
Large balances
Disputed invoices
Expected payment dates
For a growing business, this might be handled internally by a finance team or outsourced to a finance provider.
The important thing is that it happens consistently.
Use Your Cash Flow Forecast
Credit control and cash flow forecasting should work together.
If you know that £100,000 of customer payments are expected over the next four weeks, those expected receipts can be incorporated into your cash flow forecast.
But be realistic.
If a customer normally pays 20 days late, don't assume the invoice will suddenly be paid exactly on its due date.
Your cash flow forecast should reflect actual customer payment behaviour, not simply the terms printed on your invoices.
This can make your cash forecasts considerably more realistic.
What If a Customer Still Doesn't Pay?
Sometimes, despite having good processes, a customer simply won't pay.
If an invoice becomes seriously overdue, you may need to escalate your approach.
Depending on the circumstances, this could include:
A formal demand for payment
A letter before action
Negotiating a payment plan
Using a debt recovery service
Legal action
The appropriate approach depends on the amount owed, the circumstances and your contractual position.
If you're considering formal debt recovery, it's sensible to take appropriate professional or legal advice.
Don't Wait Until You Have a Cash Flow Problem
Credit control is often treated as something businesses deal with when cash becomes tight.
By then, it may already be too late.
If you have £100,000 of overdue invoices, improving your credit control today won't necessarily put £100,000 into your bank account tomorrow.
It takes time to recover outstanding debts.
That's why credit control should be a normal part of running the business, not an emergency response.
The Bottom Line
You can't completely eliminate late payments.
But you can make them much less common by having a proper process.
Start with clear payment terms.
Invoice promptly.
Make invoices easy to pay.
Confirm customers have received them.
Follow up before invoices become overdue.
Monitor debtor days.
Chase consistently.
Resolve disputes quickly.
Set appropriate credit limits.
And don't be afraid to have difficult conversations about money.
Ultimately, sales aren't cash until you've been paid.
A £100,000 order might look fantastic on your sales report.
But until the money reaches your bank account, you are still funding the customer.
For growing businesses, effective credit control isn't just about chasing invoices.
It's about protecting your cash flow and giving your business the financial headroom to grow.
How Welf Accountants Can Help
At Welf Accountants, we provide outsourced finance services to growing businesses, including credit control, bookkeeping, management accounts, payroll and financial reporting.
Our credit control service can help you stay on top of outstanding invoices, follow up overdue payments and maintain better visibility over the cash your customers owe you.
Because as your business grows, getting paid shouldn't become an afterthought.
Want to improve your business cash flow?
Talk to Welf Accountants about outsourced credit control and finance support for your growing business.