About TaxIQ UK

Most tax calculators assume one job and one payslip. Plenty of people have more going on than that.

TaxIQ UK was built for people with a main job plus something on the side: a small business, a rented flat, savings that now earn real interest, or shares that pay dividends. Each of those is taxed differently, with its own allowances, and working out the total by hand is fiddly.

What it covers

• Employment income, with income tax and National Insurance
• Multiple side hustles (self-employment), each with income and expenses
• Multiple rental properties, each with rent and costs
• Savings interest and investment returns
• Dividends

Who makes it

TaxIQ UK is made by Paul Graham, an independent developer in the UK.