Remote contractor invoices: payment terms to confirm before you start

Agree the commercial terms before the work begins

Write down the client's legal entity, scope, deliverables, milestones, revision limits, acceptance process and the person authorised to approve the work. A brand name, recruiter name or platform profile may not be the entity that owes the payment.

Confirm the price, currency, tax treatment, transfer method and who absorbs bank, platform or foreign-exchange fees. State whether the fee is hourly, daily, milestone-based or fixed, and define what evidence supports time or completion. If the client requires a purchase order or supplier registration, complete it before relying on an invoice date.

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Put the information needed to process payment on the invoice

Invoice rules vary by jurisdiction and tax status. As a practical baseline, use a unique invoice number; identify the supplier and customer; describe the service clearly; show the service and invoice dates; itemise the amount, applicable tax and total; and provide the agreed payment details and due date.

The UK government's invoice guidance lists these elements among the information invoices must contain in the United Kingdom. That source is useful as a checklist, but it is not a substitute for the tax and invoicing rules where the contractor and client are established.

• Unique invoice number and issue date.
• Correct supplier and customer legal names and contact details.
• Contract, purchase-order, project or platform reference.
• Clear description, service period, quantity or milestone.
• Subtotal, tax where applicable, currency, fees and total due.
• Payment method, account details and an exact due date.

Make acceptance and delivery evidence visible

A payment clock may not start if the invoice goes to the wrong inbox, lacks a purchase-order number or the client says the deliverable was never accepted. Ask where invoices must be sent, which file format is accepted and how receipt will be acknowledged.

Keep the signed agreement, scope changes, delivery message, approval, time record and invoice together. The UK Small Business Commissioner recommends accurate invoices, prompt submission, correct customer and reference details, and a clear payment due date to reduce avoidable delay.

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Escalate a late payment in documented stages

Send a polite reminder before or on the due date, then a formal follow-up that identifies the invoice, amount, original due date and requested payment date. Keep communication in writing and avoid changing bank details inside an unexpected email thread; verify any account change through a known contact route.

Late-payment rights depend on the contract and governing law. UK and EU official guidance describes statutory interest and recovery rules for qualifying business transactions, including situations where no payment period was fixed, but the conditions and timelines differ. Do not assume those rules apply to a cross-border contract; seek appropriate advice before adding interest, suspending work or starting recovery.

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Use this contractor payment check

• Verify the client legal entity, authorised contact and governing contract.
• Define scope, milestones, revisions and acceptance before starting.
• Agree price, currency, tax handling, transfer fees and payment method.
• Record the exact invoice route, required references and due date.
• Keep evidence of delivery, approval, time and scope changes.
• Schedule reminders and use a written escalation route for delays.
• Check local tax and late-payment rules before relying on statutory remedies.

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