VAT Calculator

What VAT is, and why it needs its own calculator

VAT — Value-Added Tax — is the consumption tax that powers most of Europe and a large slice of the rest of the world. It's added to nearly every retail purchase, and the math involved is just a percentage. Easy in one direction (add VAT to a net price) and surprisingly easy to get wrong in the other (remove VAT from a gross price). The VAT Calculator does both cleanly: type a number, pick a rate, see the net, the VAT portion, and the gross at the same time.

You probably need it more than you think. Freelancers writing invoices have to specify net and VAT separately. Online sellers calculating margins need to know what the customer pays versus what lands in the bank account. Travelers reclaiming VAT at airports want to know exactly what portion of the price they can get back. And accountants spend a lot of time reverse-engineering VAT from gross totals on receipts that were rounded line-by-line.

The two formulas

Two directions, two formulas. They're not the same operation; the most common mistake in VAT math is treating them as if they are.

The asymmetry trips people up. Adding 20% VAT to £100 gives £120. Removing 20% VAT from £120 gives £100 — not £96. That's because VAT is calculated on the net amount, not on the gross. When you remove VAT, you have to undo the multiplication by (1 + rate), which means dividing by it, not subtracting the percentage.

A worked example

You're a UK freelancer invoicing a client for £100 of net work. UK standard VAT is 20%. What does the invoice total?

• Net = £100
• VAT = £100 × 0.20 = £20
• Gross = £100 + £20 = £120

The invoice shows three numbers: £100 net, £20 VAT, £120 total. The client pays £120. You pass £20 along to HMRC at your next VAT return (assuming you're VAT-registered).

Now imagine you're on the other side. A receipt says £120 total, including 20% VAT, and your accountant wants the net and the VAT broken out. Wrong way:

• £120 × 0.20 = £24 — this is wrong. There's no scenario where the VAT portion equals 24.

Right way:

• Net = £120 ÷ 1.20 = £100
• VAT = £120 − £100 = £20

The calculator's "Remove VAT" mode does this automatically. Type 120, pick 20%, get the three values back.

How to use the VAT Calculator

1. Pick a mode. "Add VAT" if you have the net amount and want the gross. "Remove VAT" if you have the gross and want to extract the net and the tax portion.
2. Type the amount in your local currency. The calculator works in pure numbers, so the unit is whatever you use — pounds, euros, dollars, rupees.
3. Set the VAT rate. Tap a preset for common jurisdictions (UK 20%, Germany 19%, Spain 21%, and others), or type a custom rate for reduced-rate goods or non-listed countries.
4. Read all three values. Net (before VAT), VAT (the tax portion), and gross (the total) are always shown together — useful for invoicing, for accounting reconciliation, and for sanity-checking the math.

Standard VAT rates around the world

Rates change occasionally — countries adjust them in response to budgets and political cycles. The table below reflects the standard rates as of late 2025; check your local tax authority before relying on any specific figure for an invoice.

The US is the obvious outlier. It has no federal VAT or GST — instead, individual states (and sometimes counties and cities) charge sales tax that ranges from 0% (Oregon, Montana, New Hampshire, Delaware, Alaska) up to a combined rate of about 10% in some California cities. Sales tax is mechanically simpler than VAT — it only applies at the final retail sale, not at every production stage — but the rate varies by ZIP code, which causes its own complications.

VAT vs sales tax: what's actually different

From the customer's perspective, VAT and US sales tax look identical. You see a price, the tax is added, you pay the total. Same percentage on the receipt. From the business perspective, they're administratively very different.

• VAT applies at every stage of production. A coffee bean importer pays VAT on the beans, charges VAT to the roaster, reclaims the import VAT. The roaster pays VAT on the beans, charges VAT to the café, reclaims the bean VAT. The café pays VAT on the roasted beans, charges VAT to you, reclaims the roast VAT. Each stage pays VAT on the value added at that stage — hence the name. The customer ends up paying the cumulative VAT on the final price.
• Sales tax applies only at the final retail sale. The importer, roaster, and café pay no sales tax on inter-business transactions (they hold "resale certificates"). Only the end consumer pays sales tax. No reclaim chain.

From your calculator's perspective, both work the same. Type the amount, type the rate, get the math. The legal frameworks differ; the arithmetic is identical.

GST: same thing, different name

GST — Goods and Services Tax — is what many non-European countries call their VAT system. Australia, New Zealand, Canada (partly), Singapore, India, Malaysia. The mechanics are identical to European VAT: multi-stage tax with input credits, charged at every step of production, ultimately borne by the consumer. The naming reflects local political and historical conventions more than any meaningful design difference.

Canada deserves a paragraph of its own because its system is genuinely complicated. Canada has a 5% federal GST. On top of that, some provinces (Ontario, New Brunswick, Newfoundland, Nova Scotia, PEI) have a combined Harmonized Sales Tax (HST) that bundles federal and provincial into a single rate (13-15%). Other provinces (Quebec, BC, Saskatchewan, Manitoba) charge separate Provincial Sales Tax (PST) on top of GST. A few provinces (Alberta, Yukon, NWT, Nunavut) have only the federal GST and no provincial layer. For Canadian invoicing, use the calculator with the combined rate that applies to your transaction — type 13% for Ontario HST or 5% for Alberta GST.

Reduced rates and zero-rated goods

Most VAT systems have multiple tiers. The "standard rate" applies to most goods. Reduced rates apply to specific essentials, usually based on social policy — food, books, children's clothes, public transport, medical supplies. Zero-rated goods (rate = 0%) are technically taxable but the rate is zero, so the seller can still reclaim input VAT on the costs of producing them. Exempt goods are entirely outside the VAT system and the seller can't reclaim input VAT.

A few examples worth knowing:

• UK food — most groceries are zero-rated, but restaurant meals and prepared foods are at the 20% standard rate. The line between "cake" (zero-rated) and "biscuit covered in chocolate" (standard-rated) has been argued in court more than once.
• EU digital services — sold to EU consumers, VAT is charged at the customer's country's rate, not the seller's. This is why some online stores ask for your country before showing a price.
• Books — many EU countries have reduced rates on physical books to promote literacy; ebook rates have been a moving target as governments harmonize digital and print.
• Children's products — UK applies 0% VAT to children's clothing under specific size thresholds; the size cutoff has been challenged in court for confusion at the boundary.

For specific rates on specific products, the calculator's custom rate field handles anything you type. If you're not sure what rate applies, check the country's tax authority before invoicing or remitting.

VAT refunds for travelers

If you're a non-EU resident leaving the EU (or non-UK leaving the UK post-Brexit), you can usually reclaim the VAT on goods you're taking home unused. The mechanics:

1. Buy at a participating "Tax-Free Shopping" retailer; ask for a VAT Refund Form at the till.
2. The item must be unused, over a country-specific minimum (typically €25–€175), and purchased within three months of departure.
3. At the airport on departure, present the goods, the receipts, the refund form, and your passport to customs for the validation stamp.
4. Submit the stamped form to the refund service (Global Blue, Planet, etc.) for processing.

The actual refund is usually 60–85% of the VAT paid — the rest goes to the refund service as commission. The calculator's "Remove VAT" mode gives you the maximum refund amount as the VAT line; the actual cash you receive will be lower after the service fee. If you bought a €1,200 watch in Italy at 22% VAT, the VAT portion is about €216 — your actual refund after fees will be roughly €150–€180.

The validation stamp is the critical step. No stamp, no refund, no exceptions. Get to the airport early enough to handle the customs queue before security.

Related calculators

VAT lives near a few other math chores that come up in the same workflows:

• Discount Calculator — for "30% off" promotions, which involve the inverse arithmetic problem (taking a percentage off versus removing VAT from a gross price). The two often appear together: discount first, then VAT, or vice versa, and the order matters.
• Percent Error Calculator — for reconciling rounding differences between line-by-line VAT on a receipt and a single-amount VAT calculation.
• Payment Calculator — for installment plans on VAT-inclusive purchases, common in EU consumer credit.
• Salary to Hourly — for freelancers pricing a VAT-inclusive day rate against a pre-VAT salary equivalent.

Frequently asked questions

Why isn't removing 20% VAT the same as taking 20% off?

Because VAT is calculated on the net amount, not the gross. If you take 20% off £120 you get £96, which would imply the original net was £96 and the VAT was £24 — but £96 × 0.20 = £19.20, not £24, so the math doesn't reconcile. The correct net is £100, because £100 × 1.20 = £120. The removal formula is gross ÷ 1.20, never gross × 0.80. Same pattern for any rate: divide by (1 + rate), not multiply by (1 − rate).

What rate should I use for my product?

Depends entirely on the jurisdiction and the product. Most goods get the standard rate (UK 20%, Germany 19%, France 20%). Many countries reduce the rate for essentials — food, books, transport, medical — often to 5–10%. Some items are zero-rated or fully exempt. Check your country's tax authority: HMRC for the UK, the Bundeszentralamt für Steuern for Germany, the ATO for Australia, the IRD for New Zealand. The presets here cover the standard rates; type any custom rate for special cases.

Is VAT included in EU prices by default?

Yes — in the EU and UK, retail prices to consumers must be displayed with VAT included (gross). B2B prices are often shown net, because the business buyer reclaims the VAT and only cares about the net cost. If you see two prices on a UK/EU site, the lower one is usually the trade or net price; the higher one is consumer-facing or gross.

Why are the calculator's numbers slightly different from my receipt?

Real receipts often round line by line and then sum the rounded values. The calculator computes once on the total and rounds at the end. The difference is usually 1–2 pence (or cents) on receipts with many items. Both methods are accepted by tax authorities; the line-by-line approach is more common in retail point-of-sale systems, while single-amount calculation is standard for invoicing.

Can I use this for US sales tax?

Mathematically yes — the formula is identical. Type the sales tax rate as the "VAT rate" and you get the same arithmetic. Note the rate varies by US ZIP code (combined state, county, and city), so you'll need to look up the right rate for the specific transaction location. Sales tax is collected by the seller and remitted to state/local authorities; there's no reclaim chain like VAT.

What if I sell to customers in multiple EU countries?

Since the EU's One Stop Shop (OSS) reforms in 2021, businesses selling to EU consumers must charge VAT at the customer's country rate (not the seller's) once total cross-border sales exceed €10,000 per year. Under the threshold, you can charge your home country's rate. Use the calculator with whichever rate applies to your specific transaction. Registration for OSS is done once and covers all EU member states.

Are reverse-charge transactions different?

Reverse charge applies to certain B2B cross-border services where the buyer accounts for the VAT instead of the seller. The invoice shows the net amount and a note that reverse charge applies; no VAT is added to the invoice total. The calculator isn't needed for the seller in this case (no VAT to compute), but the buyer would use the "Add VAT" mode internally to record the notional VAT they owe and immediately reclaim. Standard B2C transactions don't use reverse charge.

What about Brexit and UK-EU VAT?

Since January 2021, the UK is treated as a third country for EU VAT purposes. Goods crossing the UK-EU border are imports and exports, with VAT collected at the border rather than under the OSS scheme. UK businesses selling to EU consumers may need to register for VAT in each destination country or use a fiscal representative; EU businesses selling to UK consumers face similar UK-side obligations. The math on the calculator still works — you just apply the rate of the country where the sale is taxable, which is now jurisdiction-dependent.