Contractor Invoice Template UK
A contractor invoice bills a client for work done under a contract, often a fixed day rate for an agreed period or a set of milestones. This template is set up for the UK: amounts in GBP, VAT at 20% on each line. Change anything you like, then download it as a PDF.
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How to write a contractor invoice
- Quote the client's purchase order or contract number; many companies will not pay an invoice without it.
- Attach or reference the approved timesheet for the period you are billing.
- List expenses on their own lines and keep the receipts.
- Check whether your client must withhold tax from your payments in your country.
Not sure what to charge? Work out your minimum rate with the freelance rate calculator, and agree the price first with the quote generator.
What an invoice must include in the UK
- All invoices: a unique invoice number; your trading name, postal address and contact details; the customer's name and address; a clear description of what you are charging for; the date the goods or services were supplied; the date of the invoice; the amount(s) being charged; VAT amount if applicable; the total amount owed.
- Sole traders: your name and any business name, and an address where legal documents can be delivered if you use a business name.
- Limited companies: the full registered company name; if you name any director on the invoice you must name all of them.
- Full VAT invoice (HMRC VAT Notice 700/21): sequential invoice number; time of supply (tax point); date of issue if different; supplier name, address and VAT registration number; customer name and address; description sufficient to identify the goods or services; for each description, quantity or extent, rate of VAT and unit price; amount payable excluding VAT; rate of any cash discount; total VAT chargeable shown in sterling.
Invoice rules in the UK at a glance
- Tax
- VAT, standard rate 20%. See all rates and the VAT calculator
- Tax number
- VAT registration number
- Not registered for tax
- A business that is not VAT registered must not charge VAT or show VAT on its invoices and cannot issue VAT invoices. It still issues an ordinary invoice with the standard details.
- Small invoices
- A simplified VAT invoice can be issued where the supply is £250 or less including VAT; it shows your name, address and VAT number, the tax point, a description, and for each VAT rate the total including VAT and the rate. Above £250 a full or modified invoice is required.
- Payment terms
- 30 days after the customer receives the invoice or the goods or services are delivered, whichever is later, if no date was agreed. Agreed terms between businesses should normally be no more than 60 days (30 days for public authorities).
- Late payment
- Late Payment of Commercial Debts (Interest) Act 1998: in business-to-business contracts the supplier can claim simple statutory interest plus a fixed sum for debt recovery costs, unless the contract sets a different (substantial) remedy. Fixed compensation: £40 for debts under £1,000; £70 for £1,000 to £9,999.99; £100 for £10,000 or more (once per invoice). Reasonable extra recovery costs can also be claimed.
- Keep records
- At least 6 years for VAT records (10 years for VAT One Stop Shop or Mini One Stop Shop records).
Contractor Invoice Template UK: frequently asked questions
How do contractors invoice for a day rate?
Put the number of days worked as the quantity and your day rate as the price, with the period in the description, for example “Contract work, March 2026: 20 days”. Reference the approved timesheet.
Can I add expenses to a contractor invoice?
Yes, if your contract allows it. Put each expense on its own line, keep the receipts and do not add a markup unless it was agreed.
Do I have to charge VAT on my invoices in the UK?
A business that is not VAT registered must not charge VAT or show VAT on its invoices and cannot issue VAT invoices. It still issues an ordinary invoice with the standard details.
How long must I keep invoices in the UK?
At least 6 years for VAT records (10 years for VAT One Stop Shop or Mini One Stop Shop records).
Can I charge interest on late payments in the UK?
Late Payment of Commercial Debts (Interest) Act 1998: in business-to-business contracts the supplier can claim simple statutory interest plus a fixed sum for debt recovery costs, unless the contract sets a different (substantial) remedy. Bank of England Bank Rate 3.75% (in force since 18 December 2025; held at 17 September 2026 meeting, next decision 5 November 2026). Rate in force on 30 June 2026 was 3.75%, so statutory interest for debts going late from 1 July to 31 December 2026 is 11.75% a year. Work it out with the late payment calculator.
Is this invoice template free?
Yes. Edit the template in your browser and download it as a PDF for free, with no sign-up and no watermark. Nothing you type is uploaded.
Sources
- GOV.UK: Invoicing and taking payment from customers - what invoices must include
- HMRC: Record keeping (VAT Notice 700/21)
- GOV.UK: Keeping VAT records
- GOV.UK: Late commercial payments - charging interest
- GOV.UK: Late commercial payments - claim debt recovery costs
- Late Payment of Commercial Debts (Rate of Interest) (No. 3) Order 2002, article 4
- Bank of England: Interest rates and Bank Rate
The rules on this page were checked in October 2026 and are general information, not legal or tax advice. Check the official sources or ask an accountant in the UK if you are unsure what your invoices must show.
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