Invoice Payment Terms Explained: Net 30, Due on Receipt & More

Payment terms are the conditions you set for when and how you expect to be paid. They appear on your invoice and define the deadline for payment, any early payment discounts, and what happens if the client pays late.

Clear payment terms remove ambiguity. Without them, clients default to their own internal payment cycles — which could be 60 or even 90 days. By stating your terms upfront, you take control of your cash flow and set professional expectations from day one.

Payment terms should be agreed before work begins, ideally in your contract or agreement. The invoice then reinforces what was already agreed. If you spring unexpected terms on a client with the invoice, you're inviting a dispute or a delay.

In the UK, the most common payment terms for freelancers and small businesses are Net 14 and Net 30. But there are several options, and the right one depends on your industry, your relationship with the client, and how critical cash flow is to your business.

Here are the most widely used payment terms and when they make sense:

• Due on Receipt (DOR) — Payment is expected immediately upon receiving the invoice. Best for small jobs, one-off projects, or clients you haven't worked with before. This is the fastest way to get paid but may not suit larger clients with fixed payment cycles.
• Net 7 — Payment due within 7 days. A good middle ground for smaller projects where you want quick payment without demanding immediate settlement.
• Net 14 — Payment due within 14 days. Popular with freelancers and small businesses. It gives clients a reasonable window while keeping your cash flow tight. This is the term we'd recommend as a default for most freelancers.
• Net 30 — Payment due within 30 days. The corporate standard. Larger companies often default to this (or longer). If you're working with established businesses, you may need to accept Net 30 as the cost of doing business.
• Net 60 / Net 90 — Payment due within 60 or 90 days. Common in certain industries (construction, government contracts) but brutal for freelancer cash flow. Avoid these unless you have no alternative or the project value justifies the wait.
• 50% upfront, 50% on completion — A milestone-based approach that splits risk between both parties. Excellent for larger projects. The upfront payment covers your initial costs and commitment; the final payment incentivises delivery.

The "Net" in these terms simply means the number of calendar days from the invoice date. So Net 30 on an invoice dated 1st March means payment is due by 31st March.

The payment terms you choose should balance your cash flow needs with what's realistic for your clients. Here are the factors to consider:

Client size and type. Sole traders and small businesses can usually pay within 7-14 days. Larger companies with accounts departments often need 30 days as a minimum — their payment runs may only happen twice a month. Public sector and NHS contracts may have even longer cycles.

Project size. For small invoices (under £500), Due on Receipt or Net 7 is reasonable. For larger invoices (£2,000+), Net 14 or Net 30 is more common. For very large projects, consider milestone payments to keep cash flowing throughout.

Your relationship with the client. New clients should get shorter terms — you don't yet know if they're reliable payers. Established clients with a strong payment history can earn longer terms as a professional courtesy.

Your cash flow position. If you have regular expenses (software subscriptions, subcontractors, rent), you need money coming in predictably. Shorter terms give you more control. If your expenses are low and you have a financial buffer, you can afford to be more flexible.

Industry norms. Some industries have established expectations. Going against the grain can make you look unprofessional or inflexible. Research what's standard in your sector and deviate only with good reason.

Whatever you choose, be consistent. Using the same terms across all clients (with exceptions for specific situations) simplifies your bookkeeping and sets a clear professional standard.

You can incentivise prompt payment with discounts or discourage late payment with penalties. Both approaches are legitimate and widely used.

Early payment discounts are expressed as a percentage off the total if paid within a certain timeframe. The standard notation is:

• 2/10 Net 30 — A 2% discount if paid within 10 days; otherwise the full amount is due in 30 days
• 1/7 Net 14 — A 1% discount if paid within 7 days; full amount due in 14 days

These work best for larger invoices where the discount is meaningful enough to motivate action. On a £500 invoice, a 2% discount is £10 — probably not enough to change behaviour. On a £5,000 invoice, it's £100, which gets attention.

Late payment fees are your right under UK law. The Late Payment of Commercial Debts (Interest) Act 1998 allows you to charge statutory interest of 8% plus the Bank of England base rate on overdue invoices to other businesses. You can also claim fixed compensation:

• £40 for debts up to £999.99
• £70 for debts between £1,000 and £9,999.99
• £100 for debts of £10,000 or more

You don't need to include these details on every invoice, but noting that "Late payments may be subject to statutory interest under the Late Payment of Commercial Debts Act 1998" can serve as a gentle deterrent. For more on handling overdue invoices, see our guide on chasing late payments.

Your payment terms should be clearly visible on every invoice — not buried in fine print. Here's how to present them effectively:

Keep the language simple. Don't write "The remittance of the aforementioned sum is due within thirty days of the date of issuance." Write "Payment due within 30 days." Your invoice is a business document, not a legal contract.

Put terms near the total. The most effective position for payment terms is directly below or beside the grand total — the two pieces of information the client needs together are "how much" and "by when".

Include the actual due date. Don't just write "Net 30" — also include the calculated date. "Payment terms: Net 30. Due by 31 March 2026." This removes any ambiguity about when the clock started.

State your preferred payment method. If you prefer bank transfer, say so. If you accept multiple methods, list them in order of preference. Some freelancers add a small surcharge for payment methods that charge them fees (like PayPal), but make sure this is agreed upfront.

Reference your contract. If you have a signed contract or agreement, reference it on the invoice: "As per contract dated [date]" or "PO Reference: [number]". This ties the invoice to the agreed terms and makes it harder for clients to dispute.

Remember, the goal is to make payment as frictionless as possible. Clear terms, visible payment details, and an obvious due date are the three things that get invoices paid on time.