Sole trader vs PAYE compared for 2026/27: the real tax difference on the same income, what you keep, and the costs that don't show up on a payslip.
If you’re weighing up going freelance, or you’ve already got a side hustle that’s growing, the same question keeps coming back: are you actually better off as a sole trader than staying on the payroll? The sole trader vs PAYE comparison gets talked about as if self-employment is obviously more tax-efficient, and on the narrow question of tax it usually is, just not by as much as people think, and not once you count the things a payslip quietly gives you for free.
Here’s the honest breakdown for the 2026/27 tax year. The real tax difference on the same money, worked through with numbers, and then the parts of the decision that tax alone doesn’t capture.
Sole trader vs PAYE is really two questions bolted together: which one leaves more money in your pocket after tax on the same income, and which one leaves you better off overall once you account for pension, holiday, sick pay and security.
Keep those two apart in your head. The first has a fairly clean numerical answer. The second depends on your life, and it’s the one people skip.
Both a sole trader and an employee pay income tax on exactly the same bands. For 2026/27 that’s nothing on the first £12,570, 20% up to £50,270, 40% above that. The tax code side is identical. Where they split is National Insurance.
An employee pays Class 1 National Insurance at 8% on earnings between £12,570 and £50,270, and 2% above. A sole trader pays Class 4 National Insurance at 6% on profits between the same thresholds, and 2% above. That two-point gap is the core of the “sole traders pay less” claim.
Worked example, same headline number both ways. Take £40,000.
As an employee earning £40,000 salary:
As a sole trader with £40,000 profit:
The sole trader keeps about £548 more on the same £40,000. That’s the whole tax advantage in one figure, and it comes entirely from the lower NI rate.
That £548 is real but modest. The larger difference is one the worked example above hides, because it assumes both people have £40,000 to be taxed on. In practice they don’t reach that figure the same way.
An employee is taxed on their gross salary. There’s almost nothing they can deduct. A sole trader is taxed on profit, which is income minus allowable business expenses. Software, tools, stock, a share of home working costs, mileage, professional subscriptions, accountancy fees: all of it comes off before tax is calculated.
So if a freelancer bills £48,000 but has £8,000 of genuine business costs, they’re taxed on £40,000, not £48,000. An employee earning £48,000 is taxed on the full amount. That deduction is worth far more than the NI saving, and it’s the real reason self-employment can be more tax-efficient. The catch is that the expenses have to be genuine and for the business. You can’t invent them, and HMRC can ask to see the records.
Being a sole trader tends to come out ahead when you have real, provable business expenses to deduct, when your income is variable and you value keeping more of each pound now, and when you don’t need the safety net a job provides because you have savings or a partner’s income behind you.
It also wins on flexibility. You set your own rates, take on the clients you choose, and the admin, while more than PAYE, is manageable with basic bookkeeping. For a lot of freelancers the couple of hundred pounds of NI saving is a rounding error next to being able to double their day rate or work four days a week.
Staying on the payroll wins more often than the “sole traders pay less tax” framing suggests, because employment bundles in things that have a hard cash value.
Your employer must pay into your pension under auto-enrolment, typically at least 3% of qualifying earnings, and that’s money a sole trader simply doesn’t get. You get paid holiday, usually at least 28 days including bank holidays, which a sole trader has to fund by not working. You get statutory sick pay, maternity or paternity pay, and protection from unfair dismissal. And your tax is handled for you, with no payments on account, no January deadline, and no Self Assessment return to file.
Put a number on it. If an employer contributes 3% of a £40,000 salary to your pension, that’s £1,200 a year of free money. Add the value of paid holiday and sick cover, and the employee’s position can quietly overtake the sole trader’s £548 tax edge. That’s why “more tax-efficient” and “better off” are not the same sentence.
Two more things matter before you decide, and neither is about the rate you pay.
Cashflow works differently. An employee’s tax leaves smoothly every payday. A sole trader gets the full amount and has to set tax aside themselves, then pay it in a lump each January, plus payments on account towards the next year. If you don’t ringfence roughly 25% to 30% of every invoice, that bill is brutal. Discipline, not the tax rate, is what sinks most first-year sole traders.
Mortgages and borrowing are harder when self-employed too. Lenders usually want two or three years of accounts before they’ll lend, where an employee can borrow on a single payslip. If a house purchase is on the horizon, that alone can be worth staying employed for another year or two.
And there’s a third option this comparison leaves out. Once profits climb well past £50,000, some people move from sole trader to a limited company, because paying yourself in a mix of salary and dividends can lower the tax bill further. That comes with its own admin, filing duties and costs, so it rarely pays below that level. For most people deciding between a job and going freelance, the real contest is sole trader vs PAYE, and the limited company question is one to revisit later if the business grows.
The tax bands driving the sole trader vs PAYE comparison are frozen. The personal allowance is still £12,570, the higher-rate threshold is still £50,270, and both are held there until at least April 2028. So the income tax side of the comparison is unchanged from recent years.
What has shifted, in the sole trader’s favour, is National Insurance. Class 4 NI was cut to 6% in the 2024 reforms, down from 9%, and the flat weekly Class 2 charge stopped being mandatory for anyone with profits above the small profits threshold. That widened the take-home gap between self-employed and employed slightly, because employee NI at 8% didn’t fall as far. A few years ago a sole trader on £40,000 saved less than they do now.
What didn’t change is the trade-off underneath it all. Lower tax for the sole trader still comes paired with no employer pension, no paid leave, and no sick pay. The 2026 numbers make self-employment a touch more tax-efficient, but they don’t change the shape of the decision.
If you want to see the two side by side on your own numbers, the NetPay app shows your take-home as an employee and as a sole trader after income tax and National Insurance. Free to download.
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On the same income, a sole trader usually keeps slightly more, because self-employed National Insurance is charged at 6% versus 8% for employees. On £40,000, that's roughly £548 a year. The bigger advantage isn't the NI rate though, it's being able to deduct legitimate business expenses before tax, which employees can't do.
Purely on tax, sole trader edges it thanks to the lower NI rate and expense deductions. But tax-efficient isn't the same as better off. Employees get an employer pension contribution, paid holiday, and sick pay, none of which a sole trader receives. Once you value those, the gap often closes or reverses.
For 2026/27, sole traders pay Class 4 National Insurance at 6% on profits between £12,570 and £50,270, and 2% on profits above £50,270. The old flat weekly Class 2 charge is no longer mandatory if your profits are above the small profits threshold, though you can pay it voluntarily to protect your State Pension.
Yes, and it's common. You can hold a PAYE job and run a sole trader business alongside it. Your employer taxes your salary through payroll, and you declare your self-employed profit through Self Assessment. Your personal allowance is usually set against the employed job, so your freelance profit is taxed from the first pound.
Want to see your actual take-home pay?
NetPay UK works out your real net pay after tax, NI, pension and salary sacrifice, for hourly, shift and variable-income workers. Free to download.
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A note on financial advice: NetPay UK calculates take-home pay based on official HMRC tax rules. This article reflects rules in force at the time of publication (11 July 2026). Tax rules change. For complex situations, consult a qualified UK accountant or visit gov.uk/income-tax.
