UK Percentage Calculator
VAT 20% • Service charge 12.5% • Discounts • GBP
🇬🇧 UK Quick Reference — Common Percentages
| Situation | Rate | Notes |
|---|---|---|
| Standard VAT | 20% | Most goods & services |
| Reduced VAT | 5% | Domestic energy, children's car seats |
| Zero-rated VAT | 0% | Most food, books, children's clothing |
| Restaurant service charge | 12.5% | Optional — removable on request |
| Discretionary tip | 10–15% | If no service charge already added |
| Basic income tax rate | 20% | £12,571–£50,270 (2025/26) |
More UK tools:
UK Percentage Calculator — VAT, Discounts & Service Charge
In the UK, percentages come up constantly: 20% standard VAT on most purchases, 12.5% optional service charge at restaurants, and seasonal discounts from 10–70%. This calculator handles three modes — finding X% of an amount, finding what percentage X is of Y, and calculating percentage change.
UK VAT — add and remove
- Add 20% VAT: Net × 1.20 | Example: £500 → £600
- Remove 20% VAT: Gross ÷ 1.20 | Example: £600 → £500
Service charge vs. tip
UK restaurants often add a 12.5% optional service charge. Unlike the US, tipping culture is not compulsory. If service charge is already on the bill, no additional tip is expected. You can legally request removal of the service charge.