Running a business as a sole trader gives you flexibility, but it also makes you personally responsible for reporting income and paying the correct tax.
The 2026/27 tax year runs from 6 April 2026 to 5 April 2027. The biggest change for many established sole traders is the introduction of Making Tax Digital for Income Tax from April 2026.
Understanding the rules now can prevent unexpected tax bills, missed deductions and HMRC penalties later.
This guide from Accfirm explains the main UK sole trader tax rules for 2026/27 in straightforward terms.
How Does Sole Trader Tax Work in the UK?
A sole trader normally pays Income Tax and National Insurance on taxable business profits rather than total turnover. Taxable profit is broadly your business income minus allowable business expenses. VAT may also apply where taxable turnover exceeds the VAT registration threshold.
HMRC collects most sole trader Income Tax and National Insurance through Self Assessment.
For example:
Business turnover: £50,000
Allowable expenses: £10,000
Taxable business profit: £40,000
The £40,000 profit is the starting point for calculating Income Tax and Class 4 National Insurance.
Sole Trader Tax Rates for 2026/27
For sole traders living in England, Wales or Northern Ireland, the standard 2026/27 Income Tax bands are:
| Income band | 2026/27 rate |
|---|---|
| Personal Allowance | £0 to £12,570 — 0% |
| Basic rate | £12,571 to £50,270 — 20% |
| Higher rate | £50,271 to £125,140 — 40% |
| Additional rate | Above £125,140 — 45% |
The standard Personal Allowance remains £12,570 for 2026/27. The allowance reduces by £1 for every £2 of adjusted net income above £100,000 and disappears completely once income reaches £125,140.
These percentages are marginal tax rates. Moving into the 40% band does not mean your entire profit is taxed at 40%. Only income falling within that band is taxed at the higher rate.
What about sole traders in Scotland?
Scottish taxpayers have separate Income Tax bands for earnings and trading profits.
For 2026/27, Scottish earned-income rates range from 19% to 48%, depending on taxable income. Scottish taxpayers should therefore use the Scottish bands when calculating tax on sole trader profits.
Savings and dividend taxation follows UK-wide rules rather than the Scottish earned-income bands.
How Much Tax Does a Sole Trader Pay?
There is no single percentage that every sole trader pays.
Your final liability depends on:
- taxable business profit;
- employment income;
- rental income;
- pension income;
- savings and dividends;
- available allowances and reliefs;
- pension contributions;
- student or postgraduate loan repayments; and
- whether Scottish Income Tax applies.
A basic calculation is:
Turnover − allowable business expenses = taxable business profit
Your business profit is then combined with other taxable income before the relevant allowances and Income Tax bands are applied.
Class 4 National Insurance is calculated separately.
Sole Trader Tax Example for 2026/27
Assume a sole trader in England has:
Turnover: £50,000
Allowable expenses: £10,000
Taxable profit: £40,000
Other income: £0
Step 1: Deduct the Personal Allowance
£40,000 − £12,570 = £27,430 taxable income
Step 2: Calculate Income Tax
£27,430 × 20% = £5,486
Step 3: Calculate Class 4 National Insurance
Class 4 National Insurance is charged at 6% on profits between £12,570 and £50,270.
£40,000 − £12,570 = £27,430
£27,430 × 6% = £1,645.80
Estimated total
Income Tax: £5,486
Class 4 National Insurance: £1,645.80
Combined liability: approximately £7,131.80
The calculation ignores other income, pension relief, student loans, Capital Gains Tax and other personal circumstances.
National Insurance for Sole Traders in 2026/27
Sole traders need to understand both Class 2 and Class 4 National Insurance.
Class 4 National Insurance
For 2026/27:
| Annual profits | Class 4 NIC rate |
|---|---|
| Up to £12,570 | 0% |
| £12,570 to £50,270 | 6% |
| Above £50,270 | 2% |
HMRC confirms that Class 4 contributions are charged at 6% between the Lower Profits Limit and Upper Profits Limit, with a 2% rate applying above £50,270.
Do Sole Traders Still Pay Class 2 National Insurance?
Mandatory Class 2 National Insurance payments were effectively removed from April 2024 for most self-employed people.
For 2026/27, if your profits are £7,105 or more, Class 2 contributions are treated as having been paid. No actual Class 2 payment is normally required, while your National Insurance record can still receive protection.
If profits are below £7,105, you may choose to pay voluntary Class 2 contributions. The voluntary Class 2 rate is £3.65 per week for 2026/27.
Voluntary contributions may be valuable where they protect entitlement to the State Pension or certain benefits.
The £1,000 Trading Allowance
The trading allowance provides up to £1,000 of tax-free gross trading income per tax year.
If total gross trading income is £1,000 or less, you may not need to tell HMRC about that income, although exceptions apply.
Where trading income exceeds £1,000, you can generally choose between:
- claiming the £1,000 trading allowance; or
- deducting actual allowable business expenses.
You cannot normally claim the £1,000 trading allowance and deduct actual business expenses against the same trading income.
Example
Suppose you earn £5,000 from freelance work.
Your actual expenses are only £300.
Using the trading allowance could produce:
£5,000 − £1,000 = £4,000 taxable profit
Using actual expenses would produce:
£5,000 − £300 = £4,700 taxable profit
The trading allowance would therefore produce the lower taxable profit in this example.
However, a business with significant expenses will often benefit from claiming actual expenses instead.
What Expenses Can a Sole Trader Claim?
Allowable expenses reduce taxable business profit, so maintaining accurate expense records is an important part of managing sole trader tax efficiently.
HMRC permits expenses incurred for legitimate business purposes, subject to specific rules.
Common allowable expenses include:
- office supplies and stationery;
- business telephone and internet costs;
- advertising and marketing;
- website costs;
- business insurance;
- accountancy fees relating to business accounts;
- professional fees;
- staff wages;
- subcontractor costs;
- stock and raw materials;
- business premises costs;
- qualifying travel expenses;
- relevant training courses;
- business bank charges;
- loan interest relating to the business; and
- qualifying equipment costs.
Personal expenditure cannot be deducted simply because the payment came from a business bank account.
Mixed Personal and Business Expenses
Where an expense has both business and personal use, you can normally claim only the business proportion.
For example, suppose your annual mobile telephone bill is £600 and 60% relates to business use.
Potential allowable expense:
£600 × 60% = £360
HMRC specifically requires mixed-use expenses to be apportioned so that only the business element is claimed.
Can Sole Traders Claim Working From Home Expenses?
Yes.
A sole trader working from home can either calculate an appropriate proportion of actual household costs or, where eligible, use HMRC’s simplified expenses.
For simplified working-from-home expenses in 2026/27:
| Business use each month | Flat-rate expense |
|---|---|
| 25–50 hours | £10 per month |
| 51–100 hours | £18 per month |
| 101+ hours | £26 per month |
You must normally work from home for at least 25 hours during the month to use these flat rates. Telephone and internet expenses are not included in the flat rate and may be dealt with separately.
Actual-cost calculations can sometimes provide a larger deduction, particularly where a substantial part of the home is used regularly for business.
Cash Basis Accounting for Sole Traders
Cash basis accounting has been the default method for eligible self-employed businesses since 6 April 2024.
Under the cash basis, income is generally recorded when money is received and expenses when they are paid.
Businesses can elect to use traditional accruals accounting instead.
The previous cash-basis turnover restrictions were also removed, meaning eligible businesses can continue using the cash basis as they grow.
Cash basis accounting often makes bookkeeping easier for freelancers and small businesses because accounting records follow actual cash movements.
Accruals accounting may still be preferable for some businesses, particularly where stock, financing, long-term contracts or more complex financial reporting is involved.
Do Sole Traders Need to Register for Self Assessment?
You normally need to register as a sole trader for Self Assessment if your gross trading income exceeds £1,000 during a tax year.
The £1,000 test looks at income before expenses are deducted.
Registration may also be necessary in other circumstances, including where you:
- want to make voluntary National Insurance contributions;
- need to prove self-employed status;
- are working under the Construction Industry Scheme;
- have other income requiring Self Assessment; or
- need to report a taxable gain or another liability.
Sole Trader Self Assessment Deadlines for 2026/27
The 2026/27 tax year finishes on 5 April 2027.
For a sole trader who needs to report income for that tax year, the main timetable is:
| Requirement | 2026/27 deadline |
|---|---|
| Tax year begins | 6 April 2026 |
| Tax year ends | 5 April 2027 |
| Register for Self Assessment where required | 5 October 2027 |
| Paper tax return | 31 October 2027 |
| Online tax return | 31 January 2028 |
| Balancing tax payment | 31 January 2028 |
| First payment on account for 2027/28 | 31 January 2028 |
| Second payment on account for 2027/28 | 31 July 2028 |
HMRC’s standard rules require new taxpayers to notify HMRC by 5 October following the relevant tax year. Online returns and balancing payments are normally due by 31 January following the end of the tax year.
Filing earlier does not normally mean paying tax earlier. It simply gives you more time to understand and budget for the bill.
What Are Payments on Account?
Payments on account are advance payments towards your next Self Assessment liability.
Each payment is normally 50% of the previous year’s relevant Income Tax and Class 4 National Insurance liability.
Payments are generally due on:
- 31 January; and
- 31 July.
Payments on account are normally not required where the previous year’s relevant liability is below £1,000 or where more than 80% of the tax was collected outside Self Assessment.
Why Your First Tax Bill Can Feel So High
Suppose your first Self Assessment calculation produces a £7,132 relevant tax and Class 4 NIC liability.
Your first payment on account could be approximately:
£7,132 ÷ 2 = £3,566
Your January payment could therefore include:
2026/27 balancing liability: £7,132
First 2027/28 payment on account: £3,566
Total due in January: approximately £10,698
Another payment of approximately £3,566 could then become due on 31 July.
Many first-time sole traders underestimate this cash-flow effect.
If you genuinely expect the following year’s liability to be lower, HMRC allows payments on account to be reduced. However, reducing them too far can lead to interest if the eventual liability is higher.
Making Tax Digital for Income Tax in 2026/27
Making Tax Digital for Income Tax represents one of the most important changes affecting sole traders during 2026/27.
From 6 April 2026, qualifying sole traders and landlords must use MTD for Income Tax where their qualifying income for the relevant earlier period exceeded £50,000.
HMRC defines qualifying income broadly as gross income from self-employment and property before expenses.
The rollout is:
| Qualifying income | MTD start date |
|---|---|
| Over £50,000 based on 2024/25 | 6 April 2026 |
| Over £30,000 based on 2025/26 | 6 April 2027 |
| Over £20,000 based on 2026/27 | 6 April 2028 |
These thresholds relate to qualifying gross income, not taxable profit.
That distinction is important.
A sole trader with:
Turnover: £60,000
Expenses: £25,000
Profit: £35,000
could still fall within the MTD qualifying-income rules because the relevant figure may be the £60,000 gross income rather than the £35,000 taxable profit.
What Must Sole Traders Do Under MTD for Income Tax?
A sole trader within MTD must use compatible software to:
- maintain digital accounting records;
- record qualifying business income and expenditure;
- send quarterly updates to HMRC; and
- submit the required year-end tax information.
HMRC states that compatible software must be used to create, store and correct digital records and send quarterly information.
For the 2026/27 tax year, the standard quarterly deadlines are:
- 7 August 2026
- 7 November 2026
- 7 February 2027
- 7 May 2027
An important first-year concession applies. HMRC has confirmed that late quarterly update penalty points will not apply for 2026/27, although the updates still need to be completed before the tax return can be submitted.
Businesses should not treat the concession as a reason to postpone digital bookkeeping. Regular records usually make year-end reporting significantly easier.
Do Sole Traders Need to Register for VAT?
VAT is separate from Income Tax.
A sole trader must generally register for VAT if taxable turnover:
- exceeds £90,000 during a rolling 12-month period; or
- is expected to exceed £90,000 within the next 30 days.
The £90,000 threshold remains in place for 2026/27.
The test is based on taxable turnover, not profit.
Example
Turnover: £95,000
Business expenses: £50,000
Profit: £45,000
The business may still need to register for VAT because taxable turnover exceeds £90,000.
The size of the £45,000 profit does not prevent registration.
UK VAT Rates for 2026/27
The main VAT rates remain:
- 20% standard rate
- 5% reduced rate
- 0% zero rate
Different goods and services can receive different VAT treatment, while some supplies are exempt.
Sole traders approaching the VAT threshold should monitor turnover every month rather than waiting until the end of the accounting year.
How Long Must Sole Traders Keep Tax Records?
HMRC requires self-employed taxpayers to retain adequate records supporting their Self Assessment figures.
Records normally need to be kept for at least five years after the 31 January submission deadline for the relevant tax year.
For the 2026/27 tax year, whose normal online filing deadline is 31 January 2028, that generally means retaining records until at least the end of January 2033.
Useful records include:
- invoices issued;
- sales records;
- business bank statements;
- receipts;
- purchase invoices;
- mileage records;
- expense evidence;
- VAT records where applicable;
- payroll records if you employ staff; and
- supporting calculations for mixed-use expenses.
Digital record keeping becomes even more important for businesses within Making Tax Digital.
What Happens If You File Your Tax Return Late?
HMRC can charge penalties for late filing and late payment.
Under the traditional Self Assessment late-filing regime, an initial £100 penalty can apply after the filing deadline. Further penalties can arise after three, six and twelve months. Late payment can also attract penalties and interest.
However, the penalty system is changing alongside MTD.
Taxpayers using MTD for Income Tax move onto a new points-based late-submission regime from the tax year in which they join.
For quarterly updates after the 2026/27 concessionary year, the normal MTD threshold is four penalty points. Reaching the threshold can produce a £200 penalty, with further £200 penalties for subsequent missed obligations while the taxpayer remains at the threshold.
The applicable penalty rules therefore depend on the tax year, reporting obligation and whether MTD applies.
Common Sole Trader Tax Mistakes to Avoid
Small tax mistakes can become expensive when repeated over several years.
Mixing turnover with profit
Income Tax is generally calculated using taxable profit, while VAT registration and MTD qualifying-income tests can depend on gross income or turnover.
Do not use the figures interchangeably.
Ignoring payments on account
The first major Self Assessment payment may include both the previous year’s liability and an advance instalment towards the next year.
Plan cash flow before January arrives.
Claiming personal expenses
HMRC allows genuine business expenses, not private expenditure disguised as business spending.
Mixed-use costs require a reasonable business allocation.
Missing VAT registration
The VAT threshold operates on a rolling 12-month basis.
Checking turnover only once each year can result in late registration.
Assuming the trading allowance is always better
A £1,000 trading allowance can be attractive, but businesses with expenses exceeding £1,000 may receive a greater deduction by claiming actual allowable expenses.
Leaving bookkeeping until January
Late bookkeeping increases the chance of missing invoices, forgetting expenses and submitting inaccurate information.
MTD makes regular record keeping even more important.
Forgetting other income
Self Assessment can cover more than sole trader profits.
Employment income, property income, foreign income, savings, dividends and taxable gains may also need consideration.
How Can Sole Traders Reduce Their Tax Bill Legally?
Effective tax planning means claiming legitimate reliefs and making decisions before deadlines rather than trying to repair problems afterwards.
Claim Every Genuine Business Expense
Keep receipts and record expenses throughout the year.
Missing £2,000 of legitimate business expenses could unnecessarily increase taxable profit by £2,000.
Compare Actual Expenses With the Trading Allowance
Businesses with minimal costs may benefit from the £1,000 trading allowance.
Businesses with larger costs often benefit from actual expenses instead.
Consider Pension Contributions
Eligible contributions to registered pension schemes can qualify for tax relief.
Higher-rate taxpayers may also be able to claim additional pension tax relief through Self Assessment.
The standard pension annual allowance is generally £60,000, although restrictions can apply depending on income and pension circumstances.
Pension planning should therefore consider both tax relief and long-term retirement objectives.
Use the Correct Accounting Method
Cash basis is now the default for many sole traders, but accruals accounting can sometimes give a clearer picture for more complex businesses.
Choose the approach that reflects your commercial circumstances rather than assuming the simplest option is always best.
Budget for Tax During the Year
A separate tax savings account can prevent Self Assessment liabilities from interfering with normal business cash flow.
The correct percentage to reserve depends on your profit level and other income, but regular transfers are often more manageable than finding a large lump sum in January.
Sole Trader or Limited Company: Which Pays Less Tax?
There is no universal answer.
A sole trader pays Income Tax and National Insurance on business profits.
A limited company is a separate legal entity and normally pays Corporation Tax on company profits. The owner can then face personal tax depending on how money is extracted, including salary and dividends.
Changing structure affects much more than the headline tax rate. Consider:
- expected profit;
- how much money you need personally;
- pension planning;
- administrative costs;
- legal liability;
- financing requirements;
- business growth;
- retained profits; and
- future exit plans.
A company director is not automatically self-employed simply because they own the company. HMRC explicitly distinguishes limited company owners from sole traders for tax purposes.
Professional calculations should normally compare the complete tax position before a business incorporates.
Sole Trader Tax Checklist for 2026/27
Use the following checklist during the tax year:
- Check whether gross trading income exceeds £1,000.
- Register for Self Assessment where required.
- Keep business and personal transactions clearly separated.
- Record all business income.
- Record allowable expenses as they arise.
- Monitor taxable turnover against the £90,000 VAT threshold.
- Check whether MTD for Income Tax applies.
- Use compatible accounting software where required.
- Submit MTD quarterly updates where applicable.
- Review your projected tax liability during the year.
- Budget for payments on account.
- Check pension tax-relief opportunities.
- Submit your Self Assessment return before the deadline.
- Keep tax records for the required retention period.
Frequently Asked Questions About Sole Trader Tax
How much can a sole trader earn before paying tax in 2026/27?
The standard Personal Allowance is £12,570 for 2026/27. A sole trader with no other taxable income will generally start paying Income Tax once taxable profits exceed that amount. Class 4 National Insurance also starts above £12,570 of profits.
Other income can use some or all of the Personal Allowance before business profit is considered.
Do I pay tax on turnover or profit as a sole trader?
Income Tax is generally charged on taxable profit rather than turnover.
If turnover is £70,000 and allowable expenses are £25,000, the starting business profit is normally £45,000.
However, turnover remains important for rules including VAT registration and MTD qualifying income.
Does a sole trader pay Corporation Tax?
No. A genuine sole trader does not pay Corporation Tax on sole trader profits.
Corporation Tax applies to companies and certain other entities. Sole traders normally pay Income Tax and National Insurance through Self Assessment.
Is VAT included in sole trader Income Tax?
VAT and Income Tax are separate taxes.
VAT registration depends mainly on taxable turnover. Income Tax is generally calculated from taxable profits after allowable deductions.
Can a sole trader employ staff?
Yes.
A sole trader can employ workers. The business may then need to operate PAYE, report payroll information to HMRC and comply with employer National Insurance and workplace pension obligations.
Do freelancers have the same tax rules as sole traders?
A freelancer operating as a self-employed individual will generally be taxed under sole trader rules.
However, employment-status rules remain important. Calling someone a freelancer does not automatically make the person self-employed for tax purposes.
Do I need an accountant as a sole trader?
There is no general requirement for every sole trader to appoint an accountant.
Professional support becomes increasingly valuable where a business has substantial turnover, VAT obligations, employees, property income, overseas transactions, MTD requirements, significant capital expenditure or plans to incorporate.
Final Thoughts: Stay Ahead of Sole Trader Tax in 2026/27
The basic sole trader tax calculation may appear straightforward, but the complete tax position can quickly become more complicated.
For 2026/27, sole traders need to watch four areas particularly closely: Income Tax, Class 4 National Insurance, VAT turnover and Making Tax Digital for Income Tax.
Good bookkeeping throughout the year remains one of the most effective ways to avoid tax surprises.
Businesses should also plan for payments on account rather than focusing only on the final Self Assessment bill.
For further guidance, explore Accfirm’s sole trader tax resources or speak with a qualified accountant before making significant tax or business-structure decisions.
Accfirm can help sole traders, freelancers and growing businesses understand their tax position, maintain accurate records, prepare Self Assessment returns and plan for Making Tax Digital.
This article provides general information based on UK tax rules for the 2026/27 tax year. Individual circumstances can change the tax treatment, so personalised professional advice should be obtained where necessary.