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Tax & Investing

Self-Employed Tax Calculator Scotland

Calculate your Scottish income tax, Class 2 and Class 4 NI on self-employed profits. Includes expenses, trading allowance, and pension deductions.

By Gary · Updated April 2026

✓ Updated April 2026✓ Scotland-specific✓ No sign-up required

Enter your turnover and expenses to see your Scottish tax bill.

How self-employed tax works in Scotland

Self-employed Scottish taxpayers pay two taxes on their profits:

1. Scottish income tax — on taxable profits after expenses, at your marginal Scottish rate (19% to 48%).
2. Class 4 NI — 6% on profits between £12,570 and £50,270, then 2% above.

Class 2 NI was abolished from April 2024.Self-employed people with profits above the Small Profits Threshold (£7,105) automatically receive the qualifying year for the State Pension without paying anything. Voluntary Class 2 contributions of £3.65/week (£189.80/year) are still available for those below the threshold who want to maintain their NI record.

Scottish income tax bands on self-employed profits

Band	Range	Rate
Starter	£12,571 – £16,537	19%
Basic	£16,538 – £29,526	20%
Intermediate	£29,527 – £43,662	21%
Higher	£43,663 – £75,000	42%
Advanced	£75,001 – £125,140	45%
Top	£125,141 – above	48%

Source: Scottish Government / HMRC, 2026/27

Tax at every profit level

Want to see your tax before entering figures? Browse the self-employed tax reference table — Scottish income tax, Class 4 NI, and monthly take-home at every profit level from £12,000 to £100,000.

Making Tax Digital (MTD)

From April 2026, self-employed workers with profits over £50,000 must use MTD-compatible software to keep digital records and submit quarterly updates to HMRC. This threshold drops to £30,000 from April 2027.

Know your tax bill. Enter your turnover and expenses above to see your exact Scottish tax and NI liability.

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Need to track your income and expenses all year?

The Scottish Side Hustle Tax Tracker is a Google Sheets template that calculates your exact Self Assessment liability using Scottish rates. Income log, expense log, quarterly MTD summaries, and SA103 prep — £9.

Get the tracker →

For a full explanation of how self-employed tax works in Scotland — Class 2 vs Class 4 NI, the trading allowance, and MTD requirements — read our Self-Employed Tax in Scotland guide.

Frequently asked questions

Answers to common questions about this calculator.

What taxes do self-employed people pay in Scotland?

Two: (1) Scottish income tax across 6 bands on taxable profit (19% to 48%), and (2) Class 4 National Insurance at 6% on profits £12,570–£50,270 and 2% above. Mandatory Class 2 NI was abolished from April 2024 — profits above the £7,105 Small Profits Threshold automatically receive the State Pension credit without payment. On a £45,000 profit, a Scottish sole trader would pay roughly £8,800 in combined Scottish income tax and Class 4 NI.

Am I taxed on my turnover or my profit?

Profit — your turnover minus allowable business expenses. Every legitimate expense you claim reduces your taxable profit. Common deductible expenses include: home office costs (proportional), business travel (45p/mile for first 10,000 miles), equipment, software, professional fees, accountancy, and insurance. Keep receipts.

What is the £1,000 trading allowance?

If your self-employed gross income is under £1,000 in a tax year, you don't need to register with HMRC or file Self Assessment. If it's between £1,000 and £2,000, you can either claim the £1,000 trading allowance as a flat deduction OR claim actual expenses — whichever is higher. You can't do both.

When does Making Tax Digital start for self-employed?

April 2026 for anyone with gross self-employed income over £50,000. April 2027 for those over £30,000. You'll need MTD-compatible software (FreeAgent, Xero, QuickBooks) to submit quarterly updates to HMRC, plus a final declaration. This replaces the annual Self Assessment return.

How much tax should I save each month?

A good rule of thumb is 25–30% of profit for basic-rate Scottish taxpayers, and 30–35% for those crossing into Higher rate (over £43,663 profit). Put this in a separate savings account so it's ready when Self Assessment is due. Add extra for your first Payment on Account if you're in your second year of self-employment.

Can I pay less tax by contributing to a pension?

Yes — pensions are the most powerful tax tool for self-employed Scots. A £5,000 SIPP contribution saves a Higher-rate taxpayer £2,100 in tax (42%) plus, if you'd otherwise cross the £100k Personal Allowance taper, much more. The pension provider claims 20% basic rate automatically; the rest is claimed via Self Assessment.

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Rates verified April 2026· All figures sourced from Revenue Scotland and HMRC

This calculator provides estimates only and does not constitute financial or tax advice. Always verify with Revenue Scotland, HMRC, or mygov.scot, and speak to a qualified financial adviser for advice specific to your circumstances.