How to Work Out VAT Backwards
How to find the price before VAT from a VAT-inclusive total - the correct method, the common mistake most people make, and a mental shortcut that makes it easy.
VAT Calculation Guides
Most VAT mistakes come from one thing: taking 20% off a VAT-inclusive price instead of dividing by 1.2. These guides show the right method for every everyday VAT sum, with worked examples you can check.
Each guide links to a calculator that does the sum for you and shows the working.
How to Work Out VAT on a Calculator
The exact button sequence to add or remove VAT using a basic calculator, phone calculator app or the percentage key - step by step, with worked examples.
How to Add VAT to a Price
How to add 20% or 5% VAT to any price - by hand, on a calculator or phone, and in Excel or Google Sheets - with worked examples, invoice tips and the mistakes to avoid.