Tax on Invoices: VAT, GST & Sales Tax
Most invoices carry tax, and the rules for how it must appear are set by national tax authorities — which means they differ by country and change over time. These guides explain the concepts that recur everywhere: what consumption taxes are, how registration numbers work, and how prices are quoted with tax in or out.
None of these guides is tax advice for your situation. They give you the vocabulary and the shape of the rules so the conversation with your accountant or tax authority is shorter.
Rules in this area are set nationally — they differ by country and change over time. These guides are educational, not legal or tax advice.
All 4 Guides
- Sales Tax on Invoices: The US Model ExplainedState-set rates, nexus, and why US invoices tax differently from VAT countries.Read the guide
- Reverse Charge VAT: When the Buyer Accounts for the TaxWhy some B2B invoices carry no VAT and a "reverse charge" note instead.Read the guide
- Tax IDs on Invoices: VAT Numbers, EINs, ABNs and MoreWhich registration numbers belong on an invoice, and how to sanity-check them.Read the guide
- Tax-Inclusive vs Tax-Exclusive Pricing on InvoicesSame price, two presentations — and real consequences for totals and margins.Read the guide