Isle of Man Tax Calculator 2026/27
For Isle of Man sole traders. Not a UK salary, ITIP, or Self Assessment tool.
Self-employed tax estimator for the Isle of Man
Enter your figures for a free Isle of Man tax estimate, based on Assessor of Income Tax rates.
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Enter this tax year's income and expenses. You will get a headline estimate straight away. No account needed.
Tax Estimate: 2026/27
Net Profit
£0
Personal Allowance
-£0
Estimated Tax Liability
£0.00
Estimated Net Income After Tax
£0.00
Effective Rate
0.0%
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Create accountIsle of Man tax rates 2026/27
From the Isle of Man Budget 2026, effective 6 April 2026.
Income Tax Bands
| Band | Range | Rate |
|---|---|---|
| Personal Allowance | £0 – £17,000 | 0% |
| Basic Rate (10%) | £17,000 – £23,500 | 10% |
| Higher Rate (21%) | £23,500+ | 21% |
Class 2 NI: £6.75 a week (£351 a year) once profits are above £9,152.
Class 4 NI: 8% between £9,152 and £56,264, then 1% above that.
VAT: register if taxable turnover goes over £90,000 in a year.
Self-employed? A worked example on £40,000 profit
Say you are a self-employed sole trader and your 2026/27 profit, after allowable expenses, is £40,000. Here is how the estimate builds up, using the rates above and no other income.
| Step | Estimate |
|---|---|
| Profit for 2026/27 | £40,000 |
| Taxable income after the £17,000 personal allowance | £23,000 |
| Income tax: 10% on the first £6,500 | £650 |
| Income tax: 21% on the next £16,500 | £3,465 |
| Class 2 NI: £351 a year, as profit is above £9,152 | £351 |
| Class 4 NI: 8% on £30,848 (profit between £9,152 and £56,264) | £2,467.84 |
| Estimated total: income tax plus National Insurance | £6,933.84 |
Frequently asked questions
The personal allowance for the 2026/27 tax year is £17,000. This is the amount of income you can earn before you start paying income tax. If your total income exceeds £100,000, the allowance is reduced by £1 for every £2 above that threshold.
For the 2026/27 tax year, Isle of Man income tax is charged at 10% on the first £6,500 of taxable income above the personal allowance (so £17,000 to £23,500), and 21% on everything above £23,500.
If your annual self-employment profits are above £9,152, you'll pay Class 2 National Insurance at a flat rate of £6.75 per week (£351 a year). It's usually paid by monthly direct debit.
The Isle of Man tax year runs from 6 April to 5 April the following year. For example, the 2026/27 tax year runs from 6 April 2026 to 5 April 2027.
You must register for VAT on the Isle of Man if your taxable turnover is above £90,000 in a 12-month period. You may register voluntarily below this threshold.
Yes. You can enter your own income and expenses on this page and get a headline tax estimate without creating an account. A Tax Pass unlocks the detailed breakdown, what-if scenarios and PDF exports.
It is a self-employed tax estimator for the Isle of Man. It estimates your tax from the figures you enter. It is not a formal tax calculation or tax advice, and it is not a UK salary, ITIP, or Self Assessment tool.
For 2026/27 the personal allowance is £17,000. Income tax is 10% up to £23,500 and 21% above that. Class 2 and Class 4 National Insurance also apply. These are the figures already shown on this page, from the Assessor of Income Tax.
Class 2 is £6.75 a week when profits are above £9,152.
Class 4 is 8% on profits from £9,152 to £56,264, then 1% above that.
No. This is not HMRC. You file an Isle of Man return with the Assessor of Income Tax by 6 October.
For 2026/27, a self-employed sole trader with £40,000 profit would see an estimate of £6,933.84 in total: £4,115 income tax, £351 Class 2 NI and £2,467.84 Class 4 NI. That assumes no other income and uses the rates shown on this page. It is an illustration, not tax advice. Enter your own figures in the estimator above.
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