Isle of Man Tax Calculator 2026/27
The free Isle of Man tax calculator from Tally Up. Estimate your income tax, Class 2 NI and Class 4 NI for the 2026/27 tax year using the rates from the Assessor of Income Tax.
Sign up to get startedTax year 2026/27
Example: £35,000 income, £5,000 expenses
Here's what the estimator looks like once you're signed in. Your figures, your numbers, same format.
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A Tax Pass or Pro plan unlocks what-if scenarios, full band-by-band breakdowns, and a PDF export for your records.
Tax Breakdown - 2026/27
Net Profit
£30,000
Income Tax
£2,015.00
Gross Income
£30,000.00
Personal Allowance
−£17,000.00
Taxable Income
£13,000.00
Basic Rate (10%)
10%
on £6,500.00
£650.00
Higher Rate (21%)
21%
on £6,500.00
£1,365.00
Total Income Tax
£2,015.00
Class 2 National Insurance
£351.00
Class 4 National Insurance
£1,667.84
Main rate: 8% on profits between £9,152 and £56,264
8%
on £20,848.00
£1,667.84
Total National Insurance
£2,018.84
Estimated Tax Liability
£4,033.84
Profit After Tax
£25,966.16
Payment on Account 2027/28
Income Tax
105%
£2,015.00 × 105%
£2,115.75
Class 4 NI
100%
£1,667.84 × 100%
£1,667.84
Payment on Account 2027/28
£3,783.59
Saved Scenarios
Compare different income levels side by side to plan ahead for a busier or quieter year.
Try it with your own numbersIsle 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% |
Allowance Taper: Personal allowance is reduced by £1 for every £2 of income above £100,000.
Class 2 National Insurance
A flat weekly rate of £6.75 (£351 per year) for self-employed individuals with annual profits above £9,152.
Class 4 National Insurance
Main rate: 8% on profits between £9,152 and £56,264
Upper rate: 1% on profits above £56,264
VAT Registration Threshold
You must register for VAT if your taxable turnover exceeds £90,000 per year.
What the estimator gives you
Full band-by-band breakdown
Personal allowance, basic rate and higher rate shown separately, so you can see where each pound of tax comes from.
Class 2 and Class 4 NI
Both NI classes included, with the £9,152 threshold and the Class 4 upper rate handled for you.
What-if scenarios
Compare different income levels side by side to plan ahead for a busier or quieter year.
Built for the Isle of Man
Manx rates, thresholds and tax year dates. We reference the Assessor of Income Tax, not HMRC.
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. A free Tally Up account gives you a headline tax estimate. For band-by-band breakdowns, what-if scenarios and PDF exports, you can upgrade to a Tax Pass or Pro plan.
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