Why Use Our Calculators?
UK tax rules change regularly, and the changes were some of the most significant in years. Employer National Insurance rose to 15%, the threshold dropped to £5,000, and businesses across the country found themselves paying hundreds more per employee per year. Our calculators are built by UK developers and updated as soon as new rates are announced, so you always get accurate figures when planning your budget.
Every tool on this site is free, requires no registration, and works instantly in your browser. We don't store your data or require you to hand over your email to see results. The calculators are designed for speed — enter your numbers, get your answer, and get on with your day.
Built for UK Employers and Businesses
Whether you're a sole trader hiring your first employee, an SME budgeting for the new tax year, or an accountant running numbers for multiple clients, these tools are designed for the decisions you actually need to make. We focus on UK-specific calculations using HMRC-published rates and thresholds, so you're not trying to adapt a generic international calculator to British tax rules.
We're adding new calculators regularly across categories including employment costs, tax planning, property transactions, and business finance. Each one is built to solve a specific problem cleanly and accurately.