Emily Hartley
Why Payment Terms Are a Cash Flow Decision, Not Just a Formality
Payment terms are the small print that decides whether your business has money in the bank when the rent, the software subscriptions and your own wages are due. For freelancers and small limited companies in the UK, late payment is one of the most common reasons a profitable business still runs out of cash. You have done the work, sent the invoice and now you are waiting — sometimes for sixty or ninety days — while your own suppliers expect to be paid on time.
Setting clear terms before work begins gives you leverage, sets expectations and removes the awkward conversation later. The trick is to choose terms that suit your margins, your sector and the kind of client you are dealing with. There is no single right answer, but there are three common approaches worth weighing up.
Deposits: Get Money Up Front for New or Risky Work
A deposit is the simplest way to protect yourself. Rather than financing the entire job from your own pocket, you ask the client to commit financially before you start. For creative work, bespoke manufacturing, consultancy engagements and anything where you buy materials or block out significant diary time, a deposit is entirely reasonable.
- For the first project: ask for 50% up front, with the balance on delivery. This filters out time-wasters and covers your initial costs.
- For larger projects: consider 30% to start, 30% at a midpoint milestone and the remaining 40% on completion.
- For ongoing retainers: a deposit is less common, but a first month paid in advance is a sensible substitute.
Explain the deposit as a standard part of your process rather than a special favour. Wording such as "I take a 50% deposit to confirm the booking, with the balance due on delivery" sounds professional and normal. Most clients will not blink, and the ones who do are often the ones who would have paid late anyway.
Instalments: Spreading Cost Without Financing Your Client
Instalments can make a larger piece of work affordable for a client while still keeping cash moving through your business. The important distinction is between stage payments — tied to milestones you have actually delivered — and credit terms, where you effectively lend the client money over several months.
Stage payments are the safer option. You invoice when a defined piece of work is signed off, and the client pays before you move to the next phase. This keeps your risk low and gives you natural pause points if a relationship turns sour. True instalments — for example, four equal monthly payments after delivery — are more generous and should be reserved for trusted, long-standing clients or for work where the value justifies the risk.
- Always put instalment schedules in writing, with dates and amounts.
- State clearly whether the work is licensed or delivered only on final payment.
- Charge interest on missed instalments, or pause work until the account is up to date.
Fourteen Days: A Fair, Firm Default
If you do not want the complexity of deposits or instalments, fourteen days from invoice is an excellent default. It is short enough to keep your cash flow healthy, long enough for most accounts departments to process a payment, and becoming more common as a standard UK term. Thirty days is still the traditional default, but for small suppliers it is often too long.
To make fourteen-day terms stick, you need a few simple habits in place:
- Invoice immediately on completion or delivery, not at the end of the month.
- Include the due date on the invoice itself, not just "14 days from invoice".
- Add your bank details, a reference number and clear payment instructions.
- Accept faster payment methods — bank transfer, card, Direct Debit — so paying you is easy.
- Send a polite reminder on day fifteen, not day forty-five.
Late payment legislation in the UK gives small businesses the right to claim statutory interest on overdue commercial invoices, but in practice a firm, friendly reminder usually achieves more than a legal threat. Keep the tone professional and the process consistent.
Set Terms Before You Start, Not After
The moment to agree payment terms is during the quote or proposal stage, before any work begins. Once you have delivered, your negotiating position weakens considerably. Your terms should appear in three places: your quote or proposal, your contract or terms of business, and your invoice.
Good terms are specific. Instead of "payment on completion", write "50% deposit on acceptance of this quote, 50% due within fourteen days of final delivery". Instead of "invoices are payable promptly", write "invoices are payable within fourteen days of the invoice date". Vague wording invites vague payment behaviour.
Practical Steps to Make Your Terms Work
Once you have decided on your approach, standardise it and use small business software to take the effort out of the admin. Accounting tools can send automated reminders, apply late payment interest and show you at a glance which invoices are overdue. That visibility is what turns terms on paper into money in the bank.
- Write it down. Put your terms in a template you use for every quote and invoice.
- Repeat it. Mention the deposit or payment schedule in your kick-off email.
- Track it. Keep an aged debtor list and review it weekly, not quarterly.
- Enforce it. Pause work, withhold delivery or charge interest when terms are breached — calmly and consistently.
- Review it. Revisit your terms each year and adjust them for your sector and your client mix.
You do not need to be aggressive to be paid on time. You need clear terms, an easy way to pay and the discipline to follow up promptly. Choose the mix of deposits, instalments and short payment windows that suits your work, put it in writing, and your cash flow will thank you for it.
