Legislation for sole traders is designed to make it easy for entrepreneurs to start the ball rolling. You have to register with HMRC – for no fee – and you really should make sure you understand your tax obligations and deadlines; however, tax regulations for sole traders are relatively straightforward – though this doesn’t necessarily mean simple, or that your tax bill will be lighter than in other models!
Setting aside for a moment the various tax-free allowances and income tax reliefs which some sole traders may qualify for, the rules work like this:
You begin with a personal allowance. Usually this stands at £12,570, but if you earn over £100,000 your allowance is reduced by £1 for every £2 over the threshold; if you earned £100,002 in a tax year, your personal allowance is £12,569. If your income was £125,140 or higher, you have a personal allowance of zero.
Income within that personal allowance is not taxed. You’ll pay 20% on all income above your personal allowance up to £50,270 – this is known as the basic rate. From £50,271 to £125,140 (the point at which your personal allowance becomes zero), you pay income tax at the higher rate, which is 40%. Income above this level is taxed at the additional rate o 45%.
So if you’re earning £22,570, you pay no tax on the first £12,570 and 20% tax on the remaining £10,000. That works out at £2,000.
You’ll also be expected to pay your National Insurance Contributions (NICs) as Class 4. These are calculated on profit rather than income, and if your profits are below £6,845 any NICs are voluntary (and would instead be Class 2).
Because they’re based on profits, estimating your NICs mentally may not be as simple as your income tax. We recommend sole traders still follow good business practice and keep their books in detail so they can better plan for tax.