2 min read
Adds VAT to a net figure and strips VAT out of a gross figure at any rate.
The standard rate (20%)
Most goods and services are standard-rated at 20% — the default. If a supply is not specifically reduced-rated, zero-rated or exempt, it is standard-rated. This is the rate the VAT calculator uses by default.
The reduced rate (5%)
A 5% rate applies to a defined list — domestic fuel and power, children's car seats, some energy-saving materials and certain renovations. It is narrow and specific; you cannot apply it by analogy, so check the item is actually on the reduced-rate list before charging 5%.
Zero-rated vs exempt: the key difference
Both mean the customer pays no VAT, but they are opposites for you. Zero-rated supplies (most food, books, children's clothes, exports) are taxable at 0% — you charge nothing but you can reclaim input VAT on your costs. Exempt supplies (insurance, some property, financial services) carry no VAT and you generally cannot reclaim related input VAT. Confusing the two is a classic, costly error — see partial exemption.
Why zero-rating is valuable
A wholly zero-rated business — say a bakery selling most food, or an exporter — charges no output VAT but reclaims all its input VAT, so it is usually in a permanent refund position. That is a genuine cash-flow advantage. An exempt business gets neither side of the deal.
Getting the rate right on every line
Mixed businesses must apply the right rate to each product, which is where errors and HMRC assessments arise. Good systems and clear product coding prevent expensive mistakes.
Credicorp lends to your company, not to you personally, and takes no personal guarantee. See indicative terms on business loans, or apply online in minutes.
Frequently asked questions
What is the difference between zero-rated and exempt VAT?
Zero-rated supplies are taxable at 0% — you charge no VAT but can reclaim input VAT on your costs. Exempt supplies carry no VAT and you generally cannot reclaim related input VAT. Zero-rating is far more favourable to the business.
Can I charge 5% VAT if it seems fair?
No. The 5% reduced rate applies only to items on HMRC's defined list, such as domestic fuel and certain energy-saving materials. You cannot apply it by analogy; charge the standard 20% unless the item genuinely qualifies.
If all my sales are zero-rated, should I register for VAT?
Often yes, voluntarily — because you can reclaim input VAT on your costs while charging customers nothing. Many wholly zero-rated businesses register specifically to claim those refunds.
Related reading

Understanding your VAT bill: how it builds and how to fund it
VAT is money you collect for HMRC, not money you earn — but the bill still lands as a lump sum that can wreck…
Read →
VAT partial exemption explained
If your business makes both VATable and VAT-exempt sales, you cannot reclaim all your input VAT — you have to…
Read →
VAT Registration: Thresholds, Timing, and What to Expect
VAT registration becomes compulsory once your taxable turnover exceeds the current threshold in any rolling…
Read →
Business rates explained for company premises
If your company occupies commercial premises, business rates are often one of its largest fixed costs after…
Read →Funding for UK limited companies
Credicorp lends to your company, not to you personally — short-term working capital with no personal guarantee. See what your business could access.