Correct Invoicing matters

An invoice is not a trivial document. Missing fields can cause real problems: your client's accountant may reject it, tax deductions can fall through, and in some countries an incomplete invoice has no legal standing.

A professional invoice should always contain: your full name and address, your client's full name and address, a unique and sequential invoice number, the invoice date, a clear description of services or goods with quantity and unit price, the subtotal, any applicable tax with the rate shown separately, the final total, and your payment details.

This tool covers all of these fields automatically — as long as you fill them in.

Do you need to charge tax?

It depends on where you're based, your annual revenue, and the type of client you're invoicing. In the UK, VAT registration is mandatory above a revenue threshold. In Germany, the same applies with the Regelbesteuerung, while freelancers below the threshold can operate without charging VAT. In the US, sales tax rules vary by state; in Australia, GST kicks in above a certain turnover. The tool's tax toggle lets you set any rate with a custom label — but always verify your exact obligations with a qualified local advisor.

For private clients, or if you are below the registration threshold in your country, a standard PDF invoice is all you need.