Sole traders
How to create a proper UK invoice
A clear checklist for what belongs on a sole trader invoice, how to describe the job, and how to make the customer confident enough to pay quickly.
Guides
Practical invoice and quote guides for UK tradespeople
Clear, useful advice for tradespeople who want faster quotes, cleaner invoices, sensible payment terms, and less admin after work. No accounting jargon. No overcomplicated software talk.
Quotes
Invoice vs quote
Know when to send a quote, when to send an invoice, and how to handle accepted work, changes, and extras without typing the same job twice.
VAT and payment
VAT, terms and late payment wording
Simple wording ideas for payment terms, VAT, bank details, invoice references, and polite late payment notes.
Why this matters
Better paperwork helps you look more professional
Customers notice when a quote or invoice is clear, branded, and easy to pay. SayInvoice is built to help tradespeople send professional paperwork from a phone, without waiting until the evening.
Popular searches
Find the right SayInvoice page
Trade pages
Invoice app guides by trade
More specific pages for self-employed tradespeople who want examples that match the jobs they actually do.
Templates
Templates, payment terms and workflow guides
Useful starting points for tradespeople comparing templates, WhatsApp invoicing, and quote-to-invoice workflows.