Most UK businesses that fail do not fail because the idea was wrong. They fail because the money ran out before the idea had a chance.
The Office for National Statistics Business Demography bulletin, published in November 2025, puts the five year survival rate for UK businesses born in 2019 at 38.4 per cent. That is a 61.6 per cent failure rate. The three year survival rate is 55.9 per cent. There were 2.9 million active UK businesses in 2024, with 316,860 births and 279,930 deaths in the same year.
That is the backdrop. The good news is that most business failures are avoidable, and the four protections in this guide are what separates a business that survives from one that does not. They are not exciting. They are the ordinary discipline of running a small business in the UK: check who you are supplying, write your terms so you actually get paid, watch your cash, and chase your money when it is late.
This is general information about running a business in the UK, not personal financial or legal advice.
Quick answer
Four practical protections keep small UK businesses alive: run a credit check on every customer before you extend terms; put clear payment terms in every contract (capped at 60 days for business to business under the Late Payment of Commercial Debts Regulations 2013); keep a rolling 13 week cash flow forecast so you see trouble before it arrives; and chase unpaid invoices formally, adding statutory interest at 11.75 per cent per year (for the second half of 2026) plus section 5A fixed sum compensation of £40, £70 or £100 per invoice under the Late Payment of Commercial Debts (Interest) Act 1998. If a customer will not pay after a properly documented chase, a formal recovery firm is usually cheaper than court action.
Why so many UK businesses fold, and what actually kills them
The ONS Business Demography figures are the starting point, and they are worth sitting with for a moment.
Ask any liquidator what they see in the paperwork of a failed small business and the same picture comes up. Late paying customers. Terms nobody read. A cash position that quietly gets worse for six months before anyone opens a spreadsheet. Then a large invoice that does not land on time, a payroll run that is due, and a VAT bill that has been due for a while. The order things collapse in is almost always the same.
The Federation of Small Businesses has been tracking late payment as one of the biggest single risks to small firms for years. The government's response is the Fair Payment Code, administered by the Small Business Commissioner, which replaced the older Prompt Payment Code in December 2024. That code exists because late payment is a leading cause of small business failure in the UK. It is not a soft problem.
The four protections below are not glamorous. They are what actually works.
Protection 1: Check your customer before you extend terms
Every invoice you issue on credit is a small loan. The customer has your product or your time; you have a piece of paper. If you would not lend that customer the same amount of money in cash, do not extend them the same amount of credit through an invoice.
What to check before you agree terms with a new business customer:
- Companies House. Free at find-and-update.company-information.service.gov.uk. Look at how long the company has been trading, whether accounts and confirmation statements are filed on time, whether there is a mortgage register showing floating charges, and whether there are gazette notices for compulsory strike off or insolvency proceedings.
- A commercial credit reference agency. Experian, Equifax, Creditsafe and Dun and Bradstreet all sell credit reports on UK companies from around £10 a report. The report tells you their payment behaviour with other suppliers, their recommended credit limit, county court judgments against them, and any adverse indicators.
- The Fair Payment Code register. If the customer is a larger business with signatories, the Small Business Commissioner publishes the list of gold, silver and bronze payers along with those that have been removed or suspended. It is a direct read on payment culture.
- Trade references. Ask for two, and phone them, do not email. What you want to hear is the average number of days it takes them to pay, not whether they are "a good customer".
- Your gut and their behaviour. Pushback on standard credit application forms, unwillingness to give a company number, or a request for longer than 60 day terms without explanation are all information. Note them down.
Set a credit limit and a payment term based on what the file supports. Do not extend those terms because the customer is charming or promises volume. If the file changes for the worse mid-contract, adjust the terms. Continuing to supply on the same terms after a customer's file has deteriorated is a decision to lend, not to sell.
Every invoice you issue on credit is a small loan. If you would not lend that customer the same amount of money in cash, do not extend them the same amount of credit through an invoice.
The Real Debt GuyProtection 2: Contract terms that actually get paid
The single biggest reason unpaid invoices stay unpaid is that the terms are unclear, unenforceable, or never written down at all. The Late Payment of Commercial Debts (Interest) Act 1998 gives you the framework you need, but it has to be operated properly.
What to put in writing with every business customer, before the work starts:
- Payment terms. Days from date of invoice, not "on receipt". The Late Payment of Commercial Debts Regulations 2013 cap payment terms at 60 days for business to business contracts unless the parties expressly agree a longer period and that longer period is not grossly unfair to the supplier. 30 days is the practical standard for small suppliers.
- Method of payment. Bank transfer to a named account. Card is fine if you can absorb the fee. Cheques are not payment terms.
- What triggers a late fee. One day late is late. Do not build in an unwritten grace period.
- Statutory interest and compensation. Reserve the right to charge them expressly. It applies by default under the 1998 Act, but stating it in your terms means the customer cannot pretend to be surprised.
- What suspends supply. A clear right to suspend work or delivery if invoices are more than 30 days overdue, without breaching the contract.
- Ownership of goods. A retention of title clause states that ownership does not pass until payment is made in full, so if the customer becomes insolvent you may be able to recover unsold stock.
- How disputes are handled. A short notice-of-dispute clause with a fixed window (say 14 days from invoice date) stops a customer inventing a dispute six months in to justify not paying.
The statute you are leaning on is worth reading in its own words.
"Statutory interest shall be calculated at the rate for the time being prescribed by order made for the purposes of this section by the Secretary of State."The rate is set at Bank of England base rate plus 8 per cent, fixed on 30 June and 31 December for the following six months. For the second half of 2026, with the Bank of England base rate at 3.75 per cent, statutory interest on qualifying late commercial payments is 11.75 per cent per year. Source: Late Payment of Commercial Debts (Interest) Act 1998, section 6.
Whether you have a formal written contract or a purchase order accepted by email, the 1998 Act still applies. It implies the right to statutory interest and fixed sum compensation into every qualifying commercial contract by default. What a written contract does is give you clarity, evidence, and a way to add commercial terms (retention of title, suspension of supply, notice of dispute windows) that the statute does not give you on its own.
Protection 3: Cash flow discipline, week by week
Profitable businesses go bust every year. Loss-making businesses trade for years. The difference is cash.
The single most useful tool a UK small business can operate is a rolling 13 week cash flow forecast. Not a management accounts pack, not a year-end forecast: a simple week-by-week list of cash coming in and cash going out for the next quarter. The point is not accuracy to the pound. The point is that you see problems five, six, eight weeks before they arrive.
Build it once, update it every Monday. Include:
- Opening bank balance. Across all business accounts.
- Incoming customer receipts by week. Each named invoice on the week it is realistically expected, not the week it is due. If a customer has paid at 45 days for the last three invoices, put the next one at 45 days.
- Outgoing payroll, PAYE and NI. Payroll first: your team gets paid.
- Outgoing VAT and corporation tax. By due date, in the week they hit.
- Outgoing supplier payments. By supplier, by week, at the terms you have agreed.
- Outgoing loan repayments, rent, essential utilities, insurance, subscriptions.
- Closing bank balance. Week by week, running total. This is the number you watch.
If your closing balance turns negative anywhere in the next 13 weeks, you have a problem now, not then. That is time to act: pull forward receipts, delay non-essential outgoings, ask suppliers for longer terms in writing, arrange short term facilities, or (if the position is severe) speak to a licensed insolvency practitioner. The forecast is what gives you the runway to make those calls calmly.
Two other cash disciplines worth building:
- A separate tax account. Move a percentage of every incoming receipt (roughly 20 per cent for VAT plus your effective corporation tax rate) into a separate business account the day it arrives. Treat that money as not yours.
- A minimum operating balance. Set a floor (one month of fixed outgoings is a reasonable start). If your main current account approaches it, you act on the forecast. You do not wait to hit zero.
Protection 4: Chase unpaid invoices properly, with statute in hand
Most small businesses chase invoices too gently, too slowly, and without any statutory teeth. Then they either write off money that was legitimately theirs, or they escalate too late, when the customer has already stopped paying anyone.
What good chasing actually looks like:
- Day of invoice. Send the invoice with clear terms and the bank details on the invoice itself.
- Seven days before due date. Automated reminder email: "This invoice is due on [date]. Please arrange payment."
- Day after due date. Polite email confirming the invoice is now overdue and requesting an update. Ask, do not accuse.
- Seven days overdue. Firmer email, copying in a second contact at the customer if you can (finance director, procurement, whoever placed the order). State the amount, the invoice number, the date it was due, and the number of days overdue. Ask for a specific payment date in writing.
- Fourteen days overdue. Formal notice. State that statutory interest under the 1998 Act is now accruing at 11.75 per cent per year and that section 5A fixed sum compensation applies. Attach a fresh statement.
- Thirty days overdue. Letter before action, giving 14 to 30 days to pay in full or reach a written payment plan, failing which formal recovery action will follow. Send by email and post.
The statute that makes this work is worth reading in its own words too.
"Once statutory interest begins to run in relation to a qualifying debt, the supplier shall be entitled to a fixed sum (in addition to the statutory interest on the debt). That sum shall be—(a) for a debt less than £1,000, the sum of £40; (b) for a debt of £1,000 or more, but less than £10,000, the sum of £70; (c) for a debt of £10,000 or more, the sum of £100."One fixed sum per invoice, on top of statutory interest, payable the moment interest starts to accrue. It is your recovery cost, not a penalty. Source: Late Payment of Commercial Debts (Interest) Act 1998, section 5A.
If the customer still does not pay after a properly documented chase, you have three practical routes:
- Small claims (up to £10,000). You can start a money claim online at gov.uk/make-money-claim. It is designed to be usable without a solicitor. Legal costs are not generally recoverable in the small claims track, which changes the economics.
- A commercial recovery firm. For a properly documented debt with an unresponsive customer, a specialist firm is often more cost effective than court action, particularly where statutory interest and section 5A compensation are being claimed. That is what TRDG Commercial exists to do.
- The Small Business Commissioner. If your customer is a larger business paying you late, you can complain free of charge at smallbusinesscommissioner.gov.uk. The Commissioner can name and shame poor payers publicly, and complaints often prompt payment on their own.
The point of chasing properly is not aggression. It is showing the customer that you know your rights, you are documenting everything, and you will not go away. Most customers pay at the point they realise you mean it.
Where TRDG fits, and where it does not
There are two sides to this. Both matter.
If you are the business owner personally struggling with money you owe (loans in your own name, tax, guarantees called in, a company that is in trouble), that is what The Real Debt Guy is for. TRDG shares general debt and money education, helps you understand what your paperwork actually says, and supports you in preparing correspondence in your own name. TRDG is not FCA regulated. It does not provide regulated debt advice or insolvency advice, and it does not deal with creditors on your behalf. If you need advice about your specific circumstances, speak to a qualified debt adviser or an FCA authorised organisation.
If your business is owed money by another business that will not pay, that is what TRDG Commercial is for. TRDG Commercial is a separate B2B ethical debt recovery and credit management service for UK businesses. It runs on formal payment plans, statutory interest and section 5A compensation, written escalation, and clear rules. If you have an unpaid invoice from another business that has stopped responding, email enquiries@trdgcommercial.co.uk with the amount, the age, and what you have tried, and you will get a written response with next steps.
The company's formal insolvency options (liquidation, administration, company voluntary arrangements) are the work of a licensed insolvency practitioner. Where a guarantee or a claim against you personally is significant, a solicitor is the right professional. TRDG sits alongside all of that as education and support, not as a substitute for it.
FAQs
What is the statutory interest rate for late commercial payments in 2026?
For the second half of 2026, statutory interest under the Late Payment of Commercial Debts (Interest) Act 1998 is 11.75 per cent per year. That is the Bank of England base rate of 3.75 per cent plus the statutory 8 per cent. The rate is fixed for each six month period on 30 June and 31 December, so any invoice that becomes late during that period accrues at the rate set at the start of that period until paid.
Can I charge interest and compensation without a written contract?
Yes. The 1998 Act implies a right to statutory interest and to fixed sum compensation into every qualifying commercial contract by default. It applies unless the contract itself provides a substantial remedy for late payment, and that alternative remedy must be substantial or the statutory rate applies anyway.
How much fixed sum compensation can I add per invoice?
Section 5A of the 1998 Act sets three tiers: £40 for invoices under £1,000, £70 for invoices from £1,000 to under £10,000, and £100 for invoices of £10,000 or more. One fixed sum per invoice, regardless of how many days it is late.
What is a reasonable payment term in a UK commercial contract?
The Late Payment of Commercial Debts Regulations 2013 cap payment terms at 60 days for business to business contracts, unless the parties expressly agree a longer period and that longer period is not grossly unfair to the supplier. For public sector contracts the cap is 30 days.
What is the Fair Payment Code?
The Fair Payment Code is a UK government backed voluntary code administered by the Small Business Commissioner. It replaced the Prompt Payment Code in December 2024. It rewards larger businesses that pay their suppliers within contract terms with gold, silver or bronze status, and it lets suppliers check the payment behaviour of a prospective customer before agreeing terms.
When should I stop extending credit to a customer?
When their file no longer supports it. That means adverse changes on a credit report, a pattern of late payment, missed instalments, unanswered payment reminders, requests for longer terms without explanation, or public signals such as a filed CCJ or a compulsory strike off notice at Companies House. Continuing to supply after those signals is a decision to lend, not to sell.
Do I have to send a letter before action before going to court?
The Practice Direction on Pre-Action Conduct and Protocols expects the parties to exchange information about the claim before proceedings are issued. A letter before action giving 14 to 30 days to pay is the standard route. Failing to send one does not usually stop the claim, but it can affect costs.
What is the small claims track threshold for a business debt?
The small claims track applies to money claims of £10,000 or less. Above £10,000 the claim usually goes to the fast track (up to £25,000) or the intermediate or multi track for higher values. In the small claims track, legal costs are not generally recoverable, which changes the economics of the decision to sue.
Should I use a commercial debt recovery firm?
It depends on the size and age of the debt and what has already been tried. For a properly documented unpaid invoice with an unresponsive customer, a formal recovery firm can be more cost effective than court action, particularly where statutory interest and compensation are being claimed. TRDG Commercial is the sister service that handles this.
What does the Small Business Commissioner do?
The Small Business Commissioner is a UK government office that helps small businesses resolve payment disputes with larger customers, publishes late payment complaints against named firms, and administers the Fair Payment Code. Complaints are free to make.