freelancer
invoicing
templates
Self-Employed Invoice Template (Free, UK & US) — 2026 Guide
June 26, 2026
Free self-employed invoice template for the UK and US. Includes legal requirements, tax fields, and a downloadable example.

Self-Employed Invoice Template (UK & US)
If you''re self-employed, your invoice is your tax record. Get it wrong and HMRC or the IRS can reject expenses.
UK (HMRC) requirements
- Trading name and address
- Unique invoice number
- Date of issue
- Customer name & address
- Description of goods/services
- Amount charged
- VAT number (if VAT-registered) and VAT breakdown
US (IRS / 1099) requirements
- Business name and address
- EIN or SSN (if requested for 1099)
- Invoice number and date
- Itemized services
- Total amount due
- Payment terms
Common mistakes
- Reusing invoice numbers (HMRC requires sequential)
- Forgetting VAT registration number
- No payment terms → invoices drift for months
Invoxa auto-numbers invoices, handles VAT/sales tax, and exports HMRC- and IRS-friendly PDFs — free.