GuidesLast updated July 24, 2026
Invoicing, in plain English
Everything you need to invoice properly as a freelancer or small business — required fields, payment terms, emails that get paid, and worked examples. Answer-first, no fluff.
How to invoice a client
The seven required fields, numbering, terms, and the follow-up schedule.
How to make an invoice
Every method compared — forwarding, calculator, templates, suites.
How to automate invoices
Suites vs. Zapier chains vs. email-forwarding, honestly compared.
Generate an invoice
Three ways to generate one, ranked by where your data lives.
AI invoice generation
What AI actually does well in invoicing — and what it can't do alone.
What does net 30 mean?
Net 30 means the full invoice amount is due 30 days after the invoice date
Invoice vs. receipt: what's the difference?
An invoice requests payment before money moves; a receipt proves payment after
The invoice email: what to write
Copy-paste invoice email templates: the first send, the +7-day reminder, and the +14-day follow-up
A complete freelance invoice, annotated
A realistic freelance invoice example