How To Draft Payment Terms When Customers Pay Late

Chasing unpaid invoices is exhausting, especially when you have delivered the work, paid your team and kept your side of the deal. If late payment has become a pattern, your next set of customer terms needs to do more than say when the invoice is due.

Strong payment terms can give you leverage before the problem starts. They can help you collect deposits, bill at sensible milestones, charge interest where appropriate, pause work if payment is overdue and recover debt collection costs.

This doesn't have to feel heavy-handed. Clear terms usually make the relationship smoother because your customer knows exactly what happens, and when.

What Should Your Payment Terms Say?

Your payment terms should say exactly when and how your customer pays, and what happens if they don't. If there's any grey area, a late-paying customer can use that uncertainty to delay payment or dispute the invoice.

For a service business, your terms should usually cover:

• Prices and scope: what the customer is paying for, and whether VAT is included or added.
• Deposit: whether the customer pays anything before work starts, and whether that amount is refundable.
• Invoice timing: whether you invoice upfront, monthly, on completion, or at milestones.
• Due date: for example, payment within 7, 14 or 30 days of the invoice date.
• Payment method: bank transfer, direct debit, card payment or another method.
• Late payment consequences: interest, fixed compensation, recovery costs, suspension of services and termination rights.
• Disputes: how quickly the customer must raise an invoice issue, and what happens to undisputed amounts.

A helpful drafting habit is to remove phrases that sound polite but vague. Instead of saying payment is due "promptly", say "within 14 days of the invoice date". Instead of saying you may pause work for "non-payment", say you may suspend services if an invoice remains unpaid 7 days after you send a written reminder.

Good payment wording in your business terms and conditions won't guarantee every invoice is paid on time, but it gives you a cleaner path to follow when it isn't.

Can You Ask For A Deposit Before You Start Work?

Yes, you can usually ask for a deposit before you start work, provided your terms are clear and fair. For many service businesses, a deposit is one of the simplest ways to reduce late payment risk.

A deposit can help you cover initial time, materials, contractor costs or diary space. It also tests whether the customer is serious before you commit resources.

Your deposit clause should explain:

• the amount or percentage payable upfront
• when the deposit must be paid
• whether work starts only after cleared funds are received
• whether the deposit is refundable, partly refundable or non-refundable
• what happens if the customer cancels, delays or changes the project

Be careful with non-refundable deposits, especially if you sell to consumers as well as businesses. Under the Consumer Rights Act 2015, consumer terms need to be fair and transparent. A term that lets you keep a large deposit no matter what has happened may be difficult to rely on.

For business customers, you still want the wording to make commercial sense. If a customer cancels after you have reserved two weeks of staff time and bought project materials, it may be reasonable to keep enough of the deposit to cover your loss. If no work has started and you haven't incurred costs, a blanket non-refundable amount may be harder to justify in a dispute.

A practical approach is to say the deposit is applied against your fees, and that you may deduct reasonable costs and losses if the customer cancels before completion.

How Do Milestone Payments Help With Late Payers?

Milestone payments help because you don't carry the whole payment risk until the end of the job. Instead, your customer pays in stages as you complete parts of the work.

This is especially useful if your projects run for several weeks or months. If you only invoice at the end, you may have already spent a lot of time and money before you discover the customer won't pay.

A Worked Example

Mike runs a small web design studio in Manchester. He used to invoice 100% of his fee when a website went live. On a £6,000 project, that meant he could spend eight weeks working before asking for payment.

Mike changes his payment terms to:

• 40% deposit before work starts: £2,400
• 30% when the first design concept is approved: £1,800
• 20% when the test site is ready for review: £1,200
• 10% before launch or handover: £600

If the customer stops paying after the design concept, Mike has already received £4,200. He still has a problem to manage, but he isn't chasing the full £6,000 after doing nearly all the work.

When you draft milestone terms, make each trigger as objective as you can. "When we feel the project is progressing well" is too loose. "On delivery of the draft report" or "before access to final files is provided" is much clearer.

You can also say that if the customer delays feedback or approval for more than a set number of days, you may issue the next invoice based on work completed to date.

Can You Charge Interest When A Customer Pays Late?

Yes, you can usually charge interest for late payment, but the wording depends on whether your customer is another business or a consumer. For UK business-to-business debts, the Late Payment of Commercial Debts (Interest) Act 1998 gives you statutory rights unless your contract provides a substantial alternative remedy.

Under the statutory scheme, you can generally claim interest at 8% above the Bank of England base rate, plus fixed compensation based on the size of the debt:

• £40 for a debt of less than £1,000
• £70 for a debt of £1,000 to £9,999.99
• £100 for a debt of £10,000 or more

You may also be able to claim reasonable debt recovery costs above the fixed sum.

Your contract can include its own late payment interest clause, but it should be clear and proportionate. If your customer is a consumer, high default charges or unclear interest terms may be challenged under the Consumer Rights Act 2015. If your customer is a business, an excessive charge can still create arguments about whether the clause is enforceable.

A simple clause might say interest runs from the due date until payment is received, accrues daily, and is calculated at either the statutory rate for business debts or another agreed rate. You should also say whether you can claim fixed compensation and reasonable recovery costs.

Try not to hide this wording in the invoice only. It's much stronger if the customer accepts it in your customer contract, service agreement, terms and conditions, proposal or signed order form before the work begins.

Can You Suspend Services If An Invoice Is Overdue?

Yes, you can suspend services for overdue invoices if your contract gives you a clear right to do so. Without that wording, pausing work can be risky because the customer may argue that you have breached the contract first.

A good suspension clause should give you a practical process, not just a threat. It might say:

• you can send a written reminder after the due date passes
• the customer has a short period, such as 7 days, to pay or raise a genuine dispute
• if payment is still overdue, you may suspend some or all services
• you aren't responsible for delays caused by suspension
• the customer remains liable for fees already incurred
• you may require payment upfront before restarting work

Suspension wording is particularly useful for ongoing services, such as marketing retainers, bookkeeping, IT support, software services, cleaning contracts and maintenance arrangements.

You should also think about what suspension looks like in real life. If you provide IT support, will you pause support tickets but keep critical security monitoring running? If you manage paid advertising, will you pause campaign management but keep the ad account accessible to the customer? The drafting should match the operational reality.

For consumer contracts and home services terms, you need to be extra careful that the right to suspend is fair, transparent and not used in a way that leaves the customer with no reasonable remedy. For business customers, clear notice and a chance to fix the issue usually makes the clause much more workable.

Customer Payment Terms Template: What To Include

A customer payment terms template or terms of trade can be a helpful starting point, but it shouldn't be treated as a finished contract. Templates often miss the details that matter most for your pricing model, cash flow and industry.

Here is a practical outline you can use when thinking through your own payment terms:

1. Parties And Contract Documents: identify who is contracting, and explain whether the proposal, order form and terms all work together.
2. Fees And VAT: state the fees, whether VAT is included, and when extra work or expenses can be charged.
3. Deposit Or Upfront Payment: set out the amount, due date and refund position.
4. Milestone Or Recurring Invoices: explain when invoices are issued and what triggers each payment.
5. Due Date: state the exact payment period, such as 7, 14 or 30 days from invoice date.
6. Payment Method: list accepted payment methods and who pays bank or card fees, if any.
7. Invoice Disputes: require the customer to raise genuine disputes promptly, and to pay undisputed amounts on time.
8. Late Payment Interest And Compensation: state the interest rate, when it starts, and whether statutory compensation or recovery costs apply.
9. Suspension Of Services: explain the notice process and what happens while services are paused.
10. Debt Recovery And Termination: say when you may use a collection agency, recover reasonable costs or end the agreement.

If something has already gone wrong, start by checking the signed contract, proposal emails, purchase order and invoice wording. Then send a calm written reminder that states the invoice number, amount, due date and payment deadline. Keep copies of all messages, call notes and proof of work delivered.

If the customer disputes the invoice, separate the genuine dispute from the amount they simply haven't paid. Your terms can say undisputed amounts must still be paid while you work through the disputed part.

Before you use payment wording with new customers, it's worth having your terms of sale tailored to your business. A few precise sentences can make the difference between a clause you can rely on and wording that creates another argument.

Key Takeaways

• Clear payment terms should cover deposits, invoice timing, due dates, interest, suspension and recovery costs.
• Deposits and milestone payments reduce the amount of unpaid work you carry if a customer pays late.
• For UK business debts, the Late Payment of Commercial Debts (Interest) Act 1998 can allow statutory interest, fixed compensation and recovery costs.
• A suspension clause should give notice, a chance to pay and a clear right to pause services without taking on extra liability.
• Template wording is useful for planning, but your final terms should match your service model, customer type and cash flow needs.

If you'd like help with your customer payment terms, late payment interest wording, service agreements or debt recovery clauses, you can reach us at 08081347754 or team@sprintlaw.co.uk for a free, no-obligations chat.