Sole Trader Invoice: What to Include + Free Template (UK 2025)
Updated May 2025 Β· 8 min read
As a sole trader in the UK, your invoice is a legal document β not just a payment request. Getting it wrong can cause problems with HMRC, client disputes, and late payments. This guide covers exactly what you need to include and why.
π¬π§ Quick summary
- β’ Non-VAT registered: your name, address, invoice number, date, description, amount
- β’ VAT registered: all the above + VAT number, VAT rate, VAT amount, net amount
- β’ You trade under your own name β no "Ltd" company number required
- β’ All invoice income must be reported on your Self Assessment tax return
What Must a Sole Trader Invoice Include?
HMRC requires sole trader invoices to include the following. Missing fields can delay payment and cause problems during tax inspections:
| Field | Required? | Notes |
|---|---|---|
| Your full name | β Always | Your trading name or personal name |
| Your business address | β Always | Can be a home address β must be contactable |
| Client name and address | β Always | The company or person you're invoicing |
| Invoice number | β Always | Must be unique and sequential |
| Invoice date | β Always | Date the invoice was issued |
| Description of services/goods | β Always | Brief but clear β what work was done |
| Amount owed | β Always | In GBP or agreed currency |
| Payment terms and due date | Recommended | E.g. 'Net 30' β due 30 days from invoice date |
| Payment method / bank details | Recommended | Makes payment easier |
| VAT number | β οΈ If VAT registered | Mandatory if registered; omit if not |
| VAT amount and rate | β οΈ If VAT registered | Show net, VAT at X%, and gross separately |
| Company registration number | β Not needed | Only required for limited companies |
VAT on Sole Trader Invoices
Not VAT registered
- β Don't charge VAT β just invoice the full amount
- β No VAT number on your invoice
- β Simpler invoicing and accounting
- β οΈ Can't reclaim VAT on business expenses
- β οΈ Must register once turnover exceeds Β£90,000 (2024/25)
VAT registered
- β Must charge VAT (usually 20%) on most services
- β Can reclaim VAT on business purchases
- β Invoice must show: net, VAT %, VAT amount, gross
- β οΈ Must file quarterly VAT returns
- β οΈ Flat Rate Scheme available if turnover < Β£150K
VAT invoice example (VAT-registered sole trader)
VAT Number: GB 123 4567 89
Invoice Numbering Rules for Sole Traders
There are no legally prescribed formats, but HMRC expects invoices to be:
- Sequential β no gaps in the sequence
- Unique β no two invoices share the same number
- Consistent β use the same format throughout
Common formats:
Tip: Starting at 001 can make you look new. Many freelancers start at 101 or pick a number that reflects their experience β completely acceptable.
Tax and Self-Assessment for Sole Traders
All invoice income = taxable income
Every pound you invoice (excl. VAT if registered) must be declared on your Self Assessment tax return. The tax year runs 6 April to 5 April.
Paid late β taxable later
Your tax liability is based on when the invoice was issued (accruals basis) OR when you received the money (cash basis). Most sole traders use cash basis β tax applies when payment arrives.
Keep invoices for 6 years
HMRC can audit up to 6 years back (20 years if they suspect fraud). Keep all invoices electronically or in paper form.
Allowable expenses reduce your tax bill
Office costs, travel, equipment, software subscriptions, professional memberships β all deductible against your invoice income.
Sole Trader Invoice Example
Jane Smith
Freelance Web Designer
123 High Street, London, SW1A 1AA
jane@janesmith.co.uk
#INV-2025-047
Date: 17 May 2025
Due: 16 June 2025
Bill To
Acme Digital Ltd
456 Business Park, Manchester, M1 2AB
accounts@acmedigital.co.uk
| Description | Qty | Rate | Amount |
|---|---|---|---|
| Website redesign β homepage + 4 pages | 1 | Β£1,500 | Β£1,500.00 |
| Monthly maintenance (May 2025) | 1 | Β£150 | Β£150.00 |
Payment details:
Bank: Monzo Β· Sort: 04-00-04 Β· Account: 12345678
Reference: INV-2025-047
Late payment interest may be charged under the Late Payment of Commercial Debts (Interest) Act 1998.
Getting Paid Faster as a Sole Trader
FAQ
Do I need a business bank account to invoice as a sole trader?βΎ
No β HMRC doesn't require sole traders to have a separate business bank account. However, it makes bookkeeping much simpler and is strongly recommended.
Can I use my home address on my invoice?βΎ
Yes. As a sole trader you have no registered address requirement. Your home address is perfectly acceptable β many freelancers use a PO box or virtual office address for privacy.
What if a client won't give me their company address?βΎ
Use their email address and company name. You need enough to pursue the debt legally if needed, so get at least the registered company name (check Companies House for the registered address if needed).
Do I need a separate invoice for expenses?βΎ
It depends. You can include reimbursable expenses on the same invoice as your fees (with a clear line item) or invoice them separately. Either is acceptable β consistency is what matters.
What happens if I forget to include something on an invoice?βΎ
Issue a corrected invoice with the same invoice number plus a note ('Amended' or 'Revised'). Don't delete the original β amend it and resend, noting what changed.
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