UK VAT Calculator (Add or Remove VAT)
Add VAT to a net price or remove VAT from a gross price instantly. Works for any VAT, GST, or sales tax rate worldwide.
As an Amazon Associate and CJ Affiliate publisher we earn from qualifying purchases. Prices and availability may vary.
What do I need to know about Adding VAT?
To add VAT to a net (ex-VAT) price: Gross price = Net price × (1 + VAT rate as decimal). UK standard rate 20%: £100 net × 1.20 = £120 gross. Reduced rate 5%: £100 net × 1.05 = £105 gross. To calculate VAT amount only: VAT = Net price × VAT rate. For £100 at 20%: VAT = £100 × 0.20 = £20. To verify: £100 net + £20 VAT = £120 gross ✓. Businesses typically display prices ex-VAT (B2B) or inc-VAT (B2C retail). Always confirm which price basis applies before calculating the VAT element.
What's the key thing to understand about Removing VAT (De-vatting)?
Net price = Gross price ÷ (1 + VAT rate). UK example: £120 gross ÷ 1.20 = £100 net. A common mistake: taking 20% off £120 gives £96, not £100. You must divide, not subtract.
What's the key thing to understand about UK VAT Rates?
Standard rate (20%): most goods and services. Reduced rate (5%): domestic fuel, energy-saving materials, children's car seats, sanitary products. Zero rate (0%): food, books, children's clothing, public transport. Exempt: insurance, finance, education, health services.
When to Seek Financial Advice?
Calculator results provide estimates based on stated inputs and should not replace professional financial advice for significant decisions. Free, regulated financial guidance is available through MoneyHelper (moneyhelper.org.uk, 0800 011 3797) for general money queries. Regulated independent financial advisers (IFAs) — find one at unbiased.co.uk — provide personalised advice on mortgages, pensions, investments, and insurance. Advice fees are typically £150-350 per hour or a percentage of assets under management, usually around 1-2% annually. For smaller, one-off decisions, free and impartial guidance is available from MoneyHelper (moneyhelper.org.uk), a government-backed service — a good first stop before paying for full advice.
What's the key thing to understand about VAT Registration Thresholds?
Businesses must register for VAT once their taxable turnover (not profit) exceeds the current VAT registration threshold over a rolling 12-month period, not a fixed tax year — meaning the 12-month window is checked continuously, not just once a year. Once registered, a business must charge VAT on its taxable sales and can reclaim VAT paid on most business purchases and expenses, which is why some small businesses below the threshold voluntarily register anyway if their customers are themselves VAT-registered businesses that can reclaim the VAT charged, or if the business has significant VATable costs it wants to recover. Conversely, a business selling mainly to consumers (who can't reclaim VAT) may deliberately stay under the threshold where possible, since registering effectively makes the business 20% more expensive to those customers unless prices are absorbed into margin. Because the threshold is based on a rolling look-back period, it's worth tracking turnover regularly rather than only at year-end, since registration becomes compulsory as soon as the threshold is crossed, with specific deadlines for notifying HMRC.
What should I know about the Flat Rate VAT Scheme?
Instead of calculating VAT on every individual sale and purchase (standard VAT accounting), eligible small businesses can opt into the Flat Rate Scheme, paying HMRC a fixed percentage of their gross (VAT-inclusive) turnover rather than the difference between VAT charged and VAT reclaimed. The flat rate percentage varies by trade sector and is generally lower than the standard 20% rate to broadly account for the fact that the business can't separately reclaim VAT on most purchases under this scheme (small capital asset purchases over a certain value are a notable exception). This simplifies bookkeeping considerably, which is the main appeal for small businesses with relatively few VATable expenses, but it can work out more or less favourable than standard VAT accounting depending on how much VAT-reclaimable spending the business actually has — a business with high levels of VATable costs (heavy equipment purchases, for example) often does better under standard VAT accounting, where every input VAT amount is reclaimed individually rather than averaged away in a flat percentage.
Why VAT Is Charged at Every Stage, But Only the Final Consumer Really Pays It
Value Added Tax is collected at each stage of a supply chain, with VAT-registered businesses charging VAT on their sales (output VAT) while reclaiming the VAT they paid on their own business purchases (input VAT), remitting only the net difference to the tax authority. This structure means VAT doesn't actually accumulate and compound through the supply chain the way a simple sales tax at every stage might appear to — each registered business is only ever out of pocket for the VAT on the value it personally adds, with the full cumulative VAT ultimately borne by the final, non-VAT-registered consumer at the end of the chain who has no one to reclaim it from.
Why Not Everything Is Taxed at the Same VAT Rate
Most goods and services are taxed at the standard VAT rate, but many jurisdictions apply a reduced rate to certain categories (such as domestic energy in some cases) and a zero rate to others (such as most food and children's clothing in the UK) — the distinction between reduced-rate and zero-rate matters for businesses even though both appear as "no extra charge" to the end customer, since a zero-rated business can still reclaim input VAT on related costs while a fully exempt (as opposed to zero-rated) supply generally cannot. Because the specific rate applied depends on the precise nature of the good or service, and these categorizations are sometimes genuinely ambiguous at the margins, VAT rate classification disputes between businesses and tax authorities are a recurring feature of VAT administration.
UK VAT Rates by Goods and Services Category
Not everything is taxed at the UK's standard 20% VAT rate — several categories qualify for a reduced rate, and some are zero-rated or fully exempt, which changes both the price you pay and whether a business can reclaim input VAT on related costs.
| Category | VAT Rate | Examples |
|---|---|---|
| Standard rate | 20% | Most goods and services, alcohol, electronics |
| Reduced rate | 5% | Domestic energy, children's car seats, mobility aids |
| Zero rate | 0% | Most food, children's clothes, books, newspapers |
| Exempt | No VAT charged | Insurance, most financial services, postage stamps, education |
The difference between zero-rated and exempt matters mainly for businesses: a business selling zero-rated goods can still reclaim the VAT it paid on its own purchases and overheads, while a business selling exempt goods or services generally cannot. For consumers, both show up the same way — no VAT added to the price — but this distinction explains why some VAT-registered businesses with mostly exempt sales (certain financial and insurance firms, for example) face restrictions on how much input VAT they can recover.
Worked Example: Adding and Removing VAT on an Invoice
A freelance designer invoices a client for £1,200 of work, plus standard-rate VAT at 20%. VAT to add: £1,200 × 0.20 = £240. Total invoice: £1,440. Now take the reverse case: a retailer needs to work out how much of a £96 VAT-inclusive price for an electronics item is the underlying net price versus VAT, in order to post it correctly in their accounts. Rather than multiplying by 20%, the VAT-inclusive total must be divided by 1.20 to find the net amount: £96 ÷ 1.20 = £80 net price, with £16 being VAT (not £19.20, which is what you'd get by mistakenly taking 20% off the gross figure directly — a common error, since 20% of the gross total is always more than the correct VAT-inclusive figure, due to VAT being calculated on the net amount, not the gross). This "divide by 1 plus the rate" step is the one most commonly got wrong when removing VAT from a gross price, and it's worth double-checking on any invoice or receipt where only a VAT-inclusive total is shown and the net/VAT breakdown needs reconstructing for bookkeeping or expense claims.
VAT Registration: When a Business Must Charge VAT
Not every business charges VAT — only those registered for VAT are required to add it to their prices, and registration becomes compulsory once a business's taxable turnover crosses the current VAT registration threshold (reviewed periodically, currently set at a level in the tens of thousands of pounds of annual turnover) within any rolling 12-month period, not just at the end of a tax year. A business trading below the threshold can register voluntarily even if not required to, which lets it reclaim VAT on its own purchases and overheads — often worthwhile for a business whose customers are themselves VAT-registered (who can reclaim the VAT charged to them), but usually unhelpful for a business selling mainly to the general public, since voluntary registration simply makes the business's prices 20% more expensive to end consumers who can't reclaim anything back.