What Is VAT and How Is It Calculated?

How VAT Works

VAT is charged at each stage of the supply chain. A manufacturer charges VAT when selling to a wholesaler; the wholesaler charges VAT when selling to a retailer; the retailer charges VAT when selling to the consumer.

Businesses collect VAT and remit it to the government, but they can deduct the VAT they paid on their own purchases (input VAT). This mechanism is called the VAT credit system. It means the tax is effectively paid only on the value added at each stage — not on the full transaction value.

Example: A furniture maker buys wood for €100 + 20% VAT (€20). They make a table and sell it to a retailer for €300 + VAT (€60). They remit €60 to the government, but deduct the €20 they already paid — so their net VAT payment is €40. The retailer collects €80 VAT from the consumer and deducts the €60 they paid, remitting €20. Total VAT collected: €20 + €40 + €20 = €80, which is exactly 20% of the final consumer price of €400.

VAT Rates by Country

Standard VAT rates vary significantly around the world. Most countries also have reduced rates for essential goods like food, medicine, and books:

• Hungary: 27% standard (reduced: 18%, 5%) — one of the highest in the world
• Sweden, Norway: 25% standard (reduced: 12%, 6%)
• Denmark, Croatia: 25% standard
• Germany: 19% standard (reduced: 7% for food, books, public transport)
• France: 20% standard (reduced: 10%, 5.5%, 2.1%)
• United Kingdom: 20% standard (reduced: 5%, 0% for most food and children's clothing)
• Australia (GST): 10%; most fresh food is GST-free
• Canada (GST): 5% federal; provinces add HST/PST, total often 12–15%
• United States: no federal VAT; retail sales tax varies by state (0%–10%+)

How to Calculate VAT

Adding VAT to a net (ex-VAT) price: VAT amount = net price × VAT rate. Gross price = net price × (1 + VAT rate).

Example: Net price €100, VAT rate 20%. VAT = €100 × 0.20 = €20. Gross price = €100 × 1.20 = €120.

Removing VAT from a gross (VAT-inclusive) price: Net price = gross price ÷ (1 + VAT rate). VAT amount = gross price − net price.

Example: Gross price €120, VAT 20%. Net = €120 ÷ 1.20 = €100. VAT = €120 − €100 = €20.

A common mistake: calculating VAT as 20% of the gross price (€120 × 0.20 = €24) instead of the net price. Always divide by (1 + rate) to extract VAT from an inclusive price, never multiply the gross price by the rate.

VAT vs Sales Tax

The key structural difference: US sales tax is applied only at the point of final sale to the consumer. VAT is applied at every stage of production, with businesses reclaiming what they paid.

From the consumer's perspective, the final price includes the same embedded tax. Both approaches raise the same total revenue in theory. But VAT is harder to evade: because each business in the chain claims a credit for VAT paid, every transaction leaves a paper trail. Each business has an incentive to ensure their suppliers properly document VAT paid, creating self-enforcement throughout the supply chain.

Sales tax, by contrast, relies entirely on the final retailer to collect and remit correctly — creating a single point of failure and evasion. This is one reason VAT is preferred by most countries despite being more complex to administer for businesses.

VAT Registration and Thresholds

Businesses below a certain annual revenue threshold are generally not required to register for VAT. In the UK, the threshold is £90,000 (2024). In Germany, it is €22,000. Small businesses below the threshold can opt to register voluntarily, which allows them to reclaim input VAT but also requires them to charge VAT on sales.

For international e-commerce, VAT rules have changed significantly. EU rules now require non-EU sellers to register for VAT in the EU if they sell more than €10,000 per year to EU consumers — down from much higher thresholds. The EU's One Stop Shop (OSS) scheme allows sellers to register in a single EU country and report all EU VAT sales through that one registration.

Getting VAT wrong — charging the wrong rate, not registering when required, or incorrectly claiming input VAT — can result in significant penalties and back payments. When in doubt, consult a tax advisor familiar with the specific country's rules.

Zero-Rated vs VAT-Exempt

Zero-rated and VAT-exempt are not the same, though both result in no VAT charged to the consumer. Zero-rated goods (like most food and children's clothing in the UK) are still subject to VAT at a rate of 0%. Businesses selling zero-rated goods can still reclaim input VAT on their costs.

VAT-exempt goods and services (like financial services, insurance, and residential rents in most countries) are outside the VAT system entirely. Businesses providing exempt services cannot reclaim input VAT on related costs — making exemption less beneficial than zero-rating for the business.

This distinction matters when running a business that mixes taxable and exempt sales: only a portion of input VAT is reclaimable, calculated using a partial exemption method.

Practical VAT Examples for Freelancers and Small Businesses

If you are a freelancer or small business owner in a VAT-registered country, you charge VAT on your invoices and collect it on behalf of the government. You then file a VAT return — typically quarterly — where you subtract the VAT you paid on business expenses (input VAT) from the VAT you collected (output VAT). The difference is what you remit.

Example: You are a web designer in the UK. In a quarter, you invoice clients £10,000 + 20% VAT = £2,000 output VAT collected. Your business costs include software (£500 + £100 VAT) and equipment (£1,000 + £200 VAT). Total input VAT = £300. You remit £2,000 − £300 = £1,700 to HMRC.

If your input VAT exceeds your output VAT in a period — common for businesses with high equipment costs — you receive a VAT refund from the government. This is one of the practical advantages of VAT registration for businesses with significant expenses.

Keep all VAT receipts and invoices. Most countries require you to retain VAT documentation for 5–7 years. Digital accounting tools like QuickBooks, Xero, and FreeAgent automatically calculate VAT and generate VAT return reports, significantly reducing the administrative burden.

Summary

VAT is the most common consumption tax in the world, used in over 160 countries. The core calculation is straightforward: to add VAT to a net price, multiply by (1 + rate); to remove VAT from a gross price, divide by (1 + rate). For businesses, the critical concepts are input VAT recovery, registration thresholds, and the difference between zero-rated and exempt supplies. For consumers, VAT is typically already included in the displayed price in Europe — unlike US sales tax, which is added at the checkout register and varies by state and sometimes by city.