Invoicing Guides & Resources

Free guides, templates and tips to help freelancers and small businesses invoice professionally and get paid faster.

Latest guides
Guide

How to Write a Professional Invoice: Checklist, Example and Tips

The ten things every invoice needs, a worked example, the mistakes that delay payment and five habit...

2026-01-153 min read
Guide

Invoice Payment Terms: Net 30, Due on Receipt and the Legal Defaults

What each payment term means, what to write on the invoice, what the law sets when you agree nothing...

2026-01-224 min read
Tax

What Is a VAT Invoice? UK Requirements, Example and Time Limits

A VAT invoice is the invoice a VAT-registered business must give a VAT-registered customer: the deta...

2026-01-293 min read
Guide

Invoice vs Receipt: Differences, Examples and When You Need Each

An invoice asks for payment; a receipt proves it was made. One sale shown as both, when a paid invoi...

2026-02-122 min read
Guide

Invoice Number Format: Rules by Country and Examples

How to number invoices: what the UK, EU, Canada and Australia actually require, formats that work, s...

2026-03-053 min read
Guide

How to Invoice International Clients (Tax Wording by Country)

What to write in the tax line when your client is abroad (UK, EU, Canada, Australia), with official ...

2026-03-126 min read
How-to guides

How to Invoice as a Freelancer (No Company Needed)

You can invoice under your own name. What goes on a freelance invoice, when to r...

How to Make an Invoice in Word (Template, Formulas and PDF)

Make an invoice in Microsoft Word: start from a template, build the line-item ta...

How to Send an Invoice by Email (Templates and Subject Lines)

Send an invoice so it gets paid: the PDF, the right recipient, subject lines, ni...

How to Calculate VAT on an Invoice (Calculator and Rounding)

Add VAT to a price or take it out of a total, line by line or on the invoice tot...

How to Write an Invoice for Cash Payment (Paid in Cash Wording)

Invoice a cash job properly: paid-in-cash wording, an example, the records UK an...

How to Charge a Late Payment Fee (Wording and Legal Limits)

Charge late fees that hold up: the clause, the invoice line, how to work out the...