Self-Employed Tax Calculator Scotland 2025/26
Estimate the 2025/26 Scottish Income Tax and Class 4 National Insurance on your self-employment profit, with an optional PAYE salary on top. Switch back to the England, Wales and Northern Ireland version using the region toggle.
Region: England, Wales & Northern Ireland | Scotland
Last verified against GOV.UK Scottish Income Tax rates: 25 May 2026.
Methodology: this page uses Scottish Income Tax bands for non-savings, non-dividend income, the standard UK Personal Allowance taper, and UK self-employed Class 4 National Insurance rates. It does not cover student loans, pension contributions, savings or dividend tax, VAT, benefits, reliefs, or personal tax advice.
Not in Scotland? Use the England, Wales and Northern Ireland self-employed tax calculator instead.
Calculated estimate
Tax Calculation Results
- Estimated take-home profit
- ~£
- Additional Income Tax
- ~£
- National Insurance
- ~£
| Main Income: | £ |
| Side Hustle Income: | £ |
| Side Hustle Expenses: | £ |
| Side Hustle Profit: | £ |
| Estimated Additional Income Tax: | ~£ |
| Estimated National Insurance Contributions: | ~£ |
| Estimated Total Additional Tax (Income Tax + NI): | ~£ |
| Estimated Effective Tax Rate (Income Tax + NI): | % |
Based on this gross side hustle income, Making Tax Digital may apply from . Check HMRC guidance because digital records and quarterly updates may be required.
How this Scottish self-employed tax calculator works
Scottish taxpayers use different Income Tax bands and rates from the rest of the UK. The calculator stacks your self-employment profit on top of any PAYE salary in the same tax year, then estimates the extra Scottish Income Tax due on the combined income.
Enter your gross self-employed income, allowable expenses or the £1,000 trading allowance, and any PAYE salary. The calculator runs entirely in your browser. Nothing about your figures is sent to a server or analytics.
National Insurance still uses UK-wide self-employed Class 4 rules, so only Income Tax differs between this Scottish calculator and the rest-of-UK version.
Scottish Income Tax bands for 2025/26 (non-savings, non-dividend income): Personal Allowance to £12,570, starter rate 19% to £15,397, basic rate 20% to £27,491, intermediate rate 21% to £43,662, higher rate 42% to £75,000, advanced rate 45% to £125,140, and top rate 48% above £125,140. The Personal Allowance still tapers above £100,000 of total income.
- Use Side Hustle Income for gross income before expenses or allowances.
- Use Side Hustle Expenses for allowable expenses, or for the deduction you want to model, such as the trading allowance.
- Use Annual Salary for your PAYE salary before tax.
Trading Allowance vs Actual Expenses
The trading allowance can exempt up to £1,000 of gross trading income. If your gross trading income is £1,000 or less, you may not need to tell HMRC, although some circumstances still require a tax return.
If gross trading income is more than £1,000, you can usually choose between deducting the £1,000 trading allowance or deducting actual allowable expenses. You cannot claim both for the same trade.
Self Assessment registration and deadlines
If you cross the £1,000 trading allowance you normally need to register for Self Assessment by 5 October after the tax year ends, and file online by 31 January after the tax year. See the main Self Assessment registration and deadlines section for the 2025/26 dates and payments-on-account rules.
Official Sources
Worked examples: Scottish self-employed tax for 2025/26
Example 1
Full-time Scottish self-employed worker with £28,000 of trading income and £3,200 of allowable expenses. Profit of £24,800 sits across the Scottish starter, basic and intermediate rate bands, taxed at 19%, 20% and 21% respectively above the Personal Allowance, plus 6% Class 4 NI on profit above £12,570.
Example 2
Scottish side self-employed worker with a £42,000 PAYE salary and £8,000 of self-employed profit after expenses. The salary uses the starter, basic and most of the intermediate bands, so some self-employed profit crosses into the 42% higher rate. Class 4 NI on the trading profit is charged separately through Self Assessment.
Example 3
Higher-earning Scottish self-employed contractor with £75,000 of profit. The first slice is taxed at 19% to 42% across the starter, basic, intermediate and higher rate bands, with Class 4 NI at 6% to £50,270 and 2% above. A Self Assessment bill of this size will normally trigger payments on account for the following year.
FAQs
Who should use the Scottish self-employed tax calculator?
Use it if you are a Scottish taxpayer and your employment or self-employment income is taxed using Scottish Income Tax rates. HMRC decides your tax residency based on where you live for most of the tax year; Scottish residents have an 'S' prefix on their PAYE tax code.
How is self-employed tax calculated in Scotland?
HMRC taxes you on profit (income minus allowable expenses). Profit is added to any other taxable income, then taxed at the Scottish Income Tax rates: starter (19%), basic (20%), intermediate (21%), higher (42%), advanced (45%) and top (48%). Class 4 National Insurance is charged separately at UK-wide rates.
Does Scotland have different National Insurance for the self-employed?
No. Class 2 and Class 4 National Insurance are UK-wide. For 2025/26 Class 4 NI is 6% on profit between £12,570 and £50,270, and 2% above £50,270. Class 2 NI is treated as paid where profits clear the £6,845 Small Profits Threshold.
What are the Scottish Income Tax bands for 2025/26?
After the £12,570 Personal Allowance: starter rate 19% on the next £2,827 (to £15,397), basic rate 20% on the next £12,094 (to £27,491), intermediate rate 21% on the next £16,171 (to £43,662), higher rate 42% on income to £75,000, advanced rate 45% on income to £125,140, and top rate 48% above £125,140. The Personal Allowance tapers above £100,000 of total income.
Why is my Scottish bill different from the rest-of-UK calculator?
Scotland has six Scottish Income Tax bands instead of three rUK bands, with different thresholds. A taxpayer with the same profit usually pays slightly more in Scotland once income passes the intermediate threshold (£27,491 for 2025/26), and considerably more at higher and top rates.
Should I use the £1,000 trading allowance or actual expenses?
If gross trading income is £1,000 or less, the trading allowance can exempt it entirely. Above £1,000 you can usually choose between deducting the £1,000 trading allowance or deducting actual allowable expenses. Pick whichever is larger — you cannot claim both for the same trade.
More Side Hustle Tax Calculators
Compare other side-hustle scenarios using the same privacy-safe calculator. If you also want a general view across PAYE plus any additional earnings, use the UK extra income tax calculator.