InvoicingTopics

01Getting started 02Invoicing 03Get paid 04Expenses and runway 05Tax and VAT 06AI assistants

Topic 02

Invoicing

What each document is for, what it must contain, and how to correct one.

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Video lessons1

Send the invoiceFinalize the draft, so it gets its number. Type the client's address once, read the message Billingz wrote, and send. Every send is kept.1:33

Guides4

How to make an invoice that gets paidThe seven things every invoice needs, numbering that will not embarrass you, and the details that decide payment speed.Read

Pro forma, invoice, credit note: which document, and whenThree documents, one sequence. One asks, one records, one reverses, and only the middle one is a tax document.Read

Credit notes explained: how to correct an invoice properlyIssued invoices are never edited. A proper credit note has its own number, a reference, a reason, and none of the payment elements.Read

E-invoicing in Europe: which countries require it, and whenTen countries already work with a system behind the invoice. The 2026-2030 calendar, mapped, and what a freelancer actually has to do.Read

Questions2

Do I need to understand VAT rules to send a correct invoice?Answer

Does Billingz file my invoices with government e-invoicing systems?Answer