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UK income tax is charged on income and earnings made by individuals in any given tax year.
The rates and thresholds are set by the UK government (and the Scottish Parliament), and tax is collected by HMRC. These rates can change with announcements by the chancellor in the Spring and Autumn Statements.
This guide covers everything you need to know about income tax rates and bands for the self-employed, including:
Our Self Assessment hub has everything you need to know about filing your tax return.
Income tax is collected by HMRC from employees and the self-employed.
For employees, income tax is generally deducted at source. This means it’s taken out of an employee’s salary before it’s paid to them. Your tax code is used to tell your employer how much to deduct from your wages. But self-employed income tax is different. You pay income tax and National Insurance through Self Assessment by 31 January each year.
This means you need to record your earnings and let HMRC know what you owe in an annual tax return.
You can also deduct business expenses to pay less tax, which means the self-employed pay income tax on trading profits rather than total income.
Keep in mind that you’ll also need to pay National Insurance through your Self Assessment, too.
Self-employed income tax rates are the same as tax rates for employees.
Most people get a standard tax-free personal allowance, with income tax rates, bands, and thresholds applying to everybody.
The personal allowance has been frozen at £12,570 until 2028 (extended from 2026 in the Autumn Statement 2022). So it's worth remembering that this could lead to a higher tax bill if your earnings increase (for example, if you grow your business or make more money as a result of rising prices).
Your income tax personal allowance changes if your adjusted net income (income before any personal allowances and less certain tax reliefs) is above £100,000. It goes down by £1 for every £2 above £100,000.
It’s also worth noting that high earners that pay income tax through PAYE also have to file a Self Assessment tax return (even though they’re employed). Previously this was the case for those earning £100,000 or more a year. However, from the 2023/24 tax year, the threshold for having to file changed to £150,000.
You don’t pay a single income tax rate on your trading profits. Instead, you pay the appropriate rate on your trading profits within each bracket.
For example, if you’re filling out your next Self Assessment in January 2024 and your trading profits were £50,500 in 2022-23, you pay:
Income tax is a devolved responsibility by the UK government, so there are different rates and bands depending on where you live.
Up to £12,570
£12,571 to £50,270
£50,271 to £125,140
Income tax rates and bands for 2022-23 were slightly different – people only started paying the additional rate for income over £150,000.
Here’s an example of how your personal allowance decreases above £100,000:
Income tax is devolved to the Scottish Parliament, which means it sets the rates and thresholds. Scottish income tax brackets and rates for 2023-24 are detailed in the table below.
Up to £12,570
£12,571 to £14,732
£25,689 to £43,662
£43,663 to £125,140
The latest information can be found on the Scottish government website.
Income tax is calculated based on income, and there are different rates and thresholds for different portions of your income. As mentioned above, the UK basic rate is 20 per cent and the higher rate is 40 per cent.
This is an example self-employed tax calculation for 2022-23 if someone has:
These rates and allowances are based on current frozen income tax rates and thresholds in the UK (assuming a personal allowance of £12,570). This tax calculation includes income tax and self-employed National Insurance:
This comes to a total income tax and National Insurance bill of £12,259.
The self-employed person makes £40,741 after tax and expenses. This calculation was completed using an income tax calculator for the self-employed from Tax Scouts.
The example above is just an illustration and your personal circumstances will be different. If you’re not sure, speak to a professional to help with your calculations.
No changes to income tax thresholds were announced as part of the Autumn Statement. But we did hear about changes to the income tax cash basis for small businesses – coming in from April 2024.
New rules mean cash basis accounting will be the default way you calculate your trading profits (instead of accrual accounting). You previously had to opt-in to this scheme and would have to stop using cash basis if your turnover went over £300,000.
The government says this is a simplified accounting option and will enable small businesses and the self-employed to continue using it as they grow.
As mentioned, you don’t pay income tax on total income. Instead, you can deduct a number of allowable business expenses to calculate your total trading profits. This means that it’s important to record and deduct all of your allowable expenses to pay the right amount in tax.
Generally, you can claim expenses that are wholly and exclusively for business purposes – for example, accounting, business insurance, a business phone, and so on.
You can read more about reducing income tax by claiming expenses in our guide to allowable expenses for the self-employed.
There’s also lots of HMRC guidance about business expenses and you should check whether there’s any information from trade bodies specific to your industry.
You need to complete an annual Self Assessment tax return by 31 January each year (it’s earlier if you file on paper, but HMRC is gradually making their entire tax system digital). You’ll also need to pay any tax due by 31 January.
You’ll receive a notice to file each year. You can file your return at any point from then – there’s no reason to leave it until the last minute. Most people file their Self Assessment tax return online. You’ll need a Government Gateway login if you haven't got one yet, so get this sorted as soon as possible.
When you log in to file your return, you’ll need to answer a series of questions about the nature of your business, any other income you’ve received (including foreign income), and your expenses and income. You can choose to write expenses as a single figure, or if your accounts are more complicated, you can break them down.
A successful tax return relies on meticulous record keeping throughout the tax year. You need to keep track of invoices and receipts, and make sure that they’re properly filed. Most self-employed people use bookkeeping and accounting software to help them do this.
If you aren't sure about income tax or filing your tax return, it's a good idea to get help from a qualified professional.
Read more about your Self Assessment tax return in our comprehensive guide.
Employees pay tax automatically through PAYE, but self-employed people need to pay after filing their Self Assessment tax return. This also applies to company directors. HMRC should calculate your tax bill for you.
If you're struggling to pay your tax bill, don’t put off speaking to HMRC. They might be able to work out a payment plan for you to pay your bill in instalments – this is called a Time to Pay arrangement.
But if you can pay your tax bill by 31 January, you should. HMRC will charge you interest on late payments, so a payment plan will end up costing you more in the long run.
You should also remember payment on account. Under this system, you pay 50 per cent of your last tax bill towards your next year’s liability. There's also a payment on account due in July. Payments on account can be a surprise in your first year, but it’s important that you budget for them.
Do you have any unanswered questions about income tax for the self-employed? Let us know in the comments below.
Sam has more than 10 years of experience in writing for financial services. He specialises in illuminating complicated topics, from IR35 to ISAs, and identifying emerging trends that audiences want to know about. Sam spent five years at Simply Business, where he was Senior Copywriter.
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