VAT (Value Added Tax) — charged at every stage
Used across the UK, EU, and many other regions. VAT is collected at each stage of production and resale, with businesses reclaiming what they paid on their own costs. For a freelancer or small business, the practical effect is simple: you charge VAT on what you sell, and can usually reclaim VAT on business expenses.
GST (Goods and Services Tax) — similar mechanism, different name
Used in India, Australia, Canada, Singapore, New Zealand, and others. Functionally close to VAT, though rates and registration thresholds vary sharply by country. India's GST system is notable for splitting the tax into CGST and SGST components on domestic transactions — two line items instead of one.
Sales Tax — charged only at the final sale
Used in the United States, where there's no federal sales tax — only state and sometimes city-level rates, layered on top of each other, applied only at the point of final sale to the end consumer rather than at every production stage.
Why the distinction matters on your invoice
An invoice from a UK VAT-registered freelancer, an Indian GST-registered consultant, and a US-based contractor should not look identical — the tax line, the rate, and sometimes the split all differ. Getting this right on the invoice isn't cosmetic; it's what makes the document valid for the client's own tax records.
Key takeaways
- VAT and GST work similarly but aren't interchangeable across countries
- US sales tax is fundamentally different: state-set, and charged only at final sale
- Your invoice format should reflect the actual tax system in your country, not a generic template
Common questions
Is GST the same as VAT?
They work almost identically in mechanism — both are consumption taxes collected incrementally with input credits — but rates, registration rules, and specific compliance requirements differ by country, so they aren't interchangeable in practice.
Why does the US use sales tax instead of VAT or GST?
This is a structural and historical choice in US tax policy, resulting in tax being collected only once, at final sale, rather than at each stage of production — and set independently by each state rather than federally.