New analysis reported by Credit Connect lands on an uncomfortable truth that most small business owners already feel in their cash flow: the UK’s largest businesses are among the country’s worst payers. The bigger the customer, the longer the wait for your money often turns out to be. For a small supplier, that gap between doing the work and being paid for it is where insolvencies and closures begin.
The short answer to “why does this keep happening?” is that late payment costs a big company almost nothing and costs a small one a great deal. A large firm sitting on your invoice for 60 or 90 days is effectively borrowing from you interest free, while you are the one covering wages, stock and rent in the meantime. This article explains what the data shows, why the imbalance persists, and the practical steps, tools and legal rights UK SMEs can use to push back.
What the latest figures actually say
The Credit Connect coverage draws on insolvency and payment-practice data to make a blunt point: the largest businesses, the ones with the most resources to pay on time, are frequently the slowest to settle their bills. Late payment is repeatedly cited as a leading cause of small business failure in the UK, and the effect is cumulative. One late payment is a nuisance; a run of them empties the bank account that keeps the lights on.
There is a public paper trail here that many owners overlook. Since 2017, large UK companies and limited liability partnerships have been legally required to report their payment performance twice a year under the government’s Payment Practices Reporting duty. That means before you sign with a big customer you can look up how quickly they actually pay, in their own words, on the gov.uk service. It is one of the most underused pieces of due diligence available to a small supplier.
Why big firms are so often the worst payers
It is rarely that a large company cannot pay. The reasons are more mundane and more fixable than that:
- Payment terms are set by the buyer. A large customer will often impose 60 or 90 day terms as a condition of the contract, and a small supplier desperate for the work agrees to them.
- Working capital strategy. Stretching supplier payments is a deliberate way for big businesses to improve their own cash position. Your patience funds their balance sheet.
- Process friction. Purchase order mismatches, portal uploads, approval chains and “we only run payment runs on the last Friday of the month” all add delay, and the delay always falls on the smaller party.
- Low consequences. A small supplier rarely charges statutory interest or takes a valued client to court, so there is little downside to paying late.
The uneven relationship matters most when finance is already tight. As we covered in our piece on why weak SME lending confidence stops small firms asking for finance, many owners will not turn to a lender to plug a gap that a slow-paying customer created, which turns a temporary squeeze into a permanent problem.
Your legal rights on late payment
UK law is more on your side than most owners realise. Under the Late Payment of Commercial Debts (Interest) Act 1998, you can charge statutory interest on overdue business-to-business invoices at 8% above the Bank of England base rate, plus a fixed compensation sum for each invoice (currently £40, £70 or £100 depending on the size of the debt). You do not need this written into the contract; it applies automatically.
If terms are not agreed, the default is that payment is due within 30 days. There is also the Small Business Commissioner, a free government-backed service that handles complaints about late payment from larger customers and can help you recover what you are owed. Many owners fear that invoking interest or the Commissioner will damage the relationship. In practice, a clear, professional demand for statutory interest is a signal that you run a tight ship, and it is far cheaper than writing the debt off.
Tools that get you paid faster
The single biggest improvement most small businesses can make is to stop chasing payments manually. Your accounting software already knows exactly who owes what and for how long; the job is to let it act on that automatically. Here are the UK-relevant options worth shortlisting, from the accounting platforms themselves to specialist credit control tools.
Start with the software you probably already use. Xero, QuickBooks, FreeAgent and Sage all offer automated invoice reminders and online payment links. Two names UK owners often have not considered are worth adding to the list: Chaser, a credit control platform that automates polite, personalised chasing sequences, and Satago, which combines credit control with credit risk data and invoice finance. For collecting the money itself, GoCardless lets you pull recurring payments by Direct Debit so a customer never has to remember to pay at all.
Late payment tools compared
| Tool | Best for | What it does | Rough UK pricing |
|---|---|---|---|
| Xero / QuickBooks / FreeAgent / Sage | Businesses wanting built-in reminders | Automated invoice reminders and pay-now links inside your accounts | From roughly £15 to £40+ per month depending on plan |
| Chaser | Firms with lots of overdue invoices | Automated, human-sounding chasing sequences and a debtor dashboard | Monthly subscription tiers; check current pricing on their site |
| Satago | Owners wanting credit control plus finance | Credit control, customer credit checks and invoice finance in one place | Subscription plus finance fees where used |
| GoCardless | Recurring or subscription billing | Pulls payments by Direct Debit automatically | Per-transaction fee, typically around 1% plus a small fixed amount |
Prices change, so treat these as a starting point and confirm on each provider’s website. The principle is what matters: automation removes the awkward human moment of chasing, which is exactly the moment small business owners tend to avoid.
Practical ways to shorten the wait
Tools help, but the terms you agree and the habits you build matter just as much. A few things that consistently work:
- Invoice the day the work is done, not at month end. Every day you delay adds to the day they delay.
- Put your terms in writing and reference statutory interest. A line stating that overdue invoices attract interest under the 1998 Act changes the tone before anything goes wrong.
- Ask for deposits or staged payments. On larger jobs, a 30% or 50% deposit protects your cash flow and tests whether the customer pays at all.
- Check the customer before you start. Use the gov.uk payment-practices data and a credit check, and look them up on Companies House for accounts and filing history.
When cash flow is already stretched
If a large customer’s slow payment has already opened a hole, there are legitimate ways to bridge it rather than simply absorbing the damage. Invoice finance lets you borrow against unpaid invoices so you get most of the money quickly, then repay when the customer settles. Providers include Satago alongside dedicated lenders, and marketplace lenders such as those we covered when Funding Circle secured £500m to fund more SME loans offer term finance for shorter squeezes. If the cash gap is tied to buying kit rather than covering wages, our guide to asset finance for vehicles, diggers and equipment explains a cheaper route than dipping into an overdraft.
What does this mean for a small business?
It means late payment is not a personal failing or a run of bad luck; it is a structural feature of dealing with large customers, and it is one you can manage. The businesses that survive it are not the ones with the biggest clients. They are the ones with tight invoicing habits, automated chasing, clear terms and a willingness to charge interest when they are owed money.
Frequently asked questions
Can I really charge interest on a late invoice?
Yes. For business-to-business invoices, statutory interest of 8% above the Bank of England base rate applies automatically under the Late Payment of Commercial Debts (Interest) Act 1998, along with fixed compensation of £40 to £100 per invoice. You do not need it in the contract, though stating it up front makes it easier to enforce.
How can I check whether a big customer pays on time before I sign?
Large UK companies must report their payment performance twice a year on the government’s Payment Practices Reporting service at gov.uk. You can search a company and see their average payment time and the percentage of invoices paid late, in their own reporting, before you commit.
What is the Small Business Commissioner and does it cost anything?
The Small Business Commissioner is a free, government-backed service that helps small suppliers resolve payment disputes with larger customers. It can advise you and take up complaints on your behalf. There is no charge to use it.
Will chasing or charging interest damage the relationship?
Handled professionally, it rarely does. Automated reminders from tools like Chaser or your accounting software are polite and consistent, and a clear interest policy signals that you run your finances properly. A customer who leaves over a fair request for payment on time was always going to be a cash flow risk.
Which is better for late payment, my accounting software or a specialist tool?
For most small businesses, the reminder features in Xero, QuickBooks, FreeAgent or Sage are enough to start. If you have a high volume of overdue invoices or spend real time chasing, a specialist such as Chaser or Satago pays for itself by recovering money faster and freeing up your time.
What to do next
- Turn on automated reminders today in whichever accounting software you already run, and add a pay-now link to every invoice.
- Add a statutory interest clause to your standard terms and start invoicing on completion rather than at month end.
- Check every new large customer against the gov.uk payment-practices data and Companies House before you agree terms.
- If a specific debt is stuck, escalate to the Small Business Commissioner rather than writing it off, and consider invoice finance to bridge the gap while you do.
