Invoice Payment Terms Checklist

Before you start

Payment terms are the rules that tell a customer when and how an invoice must be paid — the due date, the accepted methods, and what happens if payment is late. Clear terms are one of the simplest levers on getting paid on time, because a customer cannot pay to a deadline they were never told. Vague terms like 'payment on receipt' with no date invite delay; a specific due date does not.

The most important principle is that terms should be agreed before the work, in your quote or terms of trade, not sprung on the customer for the first time on the invoice. This is general guidance, not legal advice — any late-payment interest or fees you mention should be supportable and agreed. For background, see what payment terms to use.

Choose your terms

Decide the terms that fit your business and cash flow:

• The payment period — for example net 7, net 14 or net 30
• Whether the period runs from invoice date or end of month
• Whether a deposit or upfront payment applies
• Whether shorter terms suit higher-risk customers
• Any early-payment discount you choose to offer

Shorter terms generally bring cash in sooner; weigh that against what your customers and industry will accept. See net 7 vs net 14 vs net 30 for the trade-offs.

State the terms clearly on the invoice

However you set them, make the terms unmissable on the invoice:

1. Show a specific due date, not just a period
2. State the accepted payment methods
3. Include your full bank and payment details
4. Show the reference the customer should use
5. Note any deposit already paid and the balance due
6. State any late-payment consequence you have agreed

A specific date — 'due 14 July 2026' — is far harder to ignore than a vague 'net 14', so always convert the period to an actual date.

Agree terms before the work

The invoice should confirm terms, not introduce them:

• Set out terms in your quote or terms of trade up front
• Have the customer accept them before you start
• Flag any unusual term, like upfront payment, clearly in advance
• Keep terms consistent across your invoices
• Only change a customer's terms with notice and agreement

A term the customer signed off in advance is one they can hardly dispute when the invoice arrives.

Common mistakes

Payment terms fail when:

• No due date — only a vague 'on receipt' with nothing specific
• Terms first seen on the invoice — never agreed in advance
• Inconsistent terms — different periods across invoices to the same customer
• Hidden methods — not telling the customer how to pay

Clear, agreed, specific terms fix most of these. How you set out terms is covered in stating payment terms on an invoice, and if late payment is already a problem despite clear terms, a free debt appraisal can help. This is general information only, not legal advice.