Sole Trader Tax on £90,000 Profit (2026/27)

On £90,000 profit, a sole trader takes home ££63,511/year (££5,293/month) in 2026/27, paying ££23,432 income tax and ££3,057 Class 4 NI. Total tax: ££26,489 at an effective rate of 29.43%.

Open in calculator Guides Sole trader tax explained Self Assessment deadlines
Income tax
£23,432
Self Assessment
Class 4 NI
£3,057
via Self Assessment
Take-home
£63,511
£5,293/month
Effective rate
29.43%
of gross profit

Full tax breakdown

Item Amount Note
Gross profit £90,000
Income tax −£23,432 Self Assessment
Class 4 NI −£3,057 6% on £12,570–£50,270; 2% above
Take-home pay £63,511/yr £5,293/mo

Assumes England/Wales tax rates, 2026/27 tax year, no pension contributions, no other income, no student loan. Use the full calculator to model your specific position.

Income tax bands

Band Rate Taxable Tax
Basic rate 20% £37,700 £7,540
Higher rate 40% £39,730 £15,892

Monthly tax to set aside: £2,207 — on £90,000 profit, total tax is ££26,489. Setting aside £2,207 each month avoids a large Self Assessment bill in January. Payments on account (if due) are roughly ££6,622 each.

Frequently asked questions

How much income tax does a sole trader pay on £90,000?

On £90,000 profit, income tax is ££23,432 in 2026/27 under England/Wales rates. The first £12,570 (personal allowance) is tax-free; the basic rate of 20% applies up to £50,270; the higher rate of 40% applies above that. Income tax is paid via Self Assessment each January (with payments on account in January and July).

How much Class 4 NI does a sole trader pay on £90,000?

Class 4 NI on £90,000 profit is ££3,057 in 2026/27. The rate is 6% on profits between £12,570 and £50,270, and 2% on profits above £50,270. Class 4 NI is also paid via Self Assessment, not through PAYE.

What is the take-home pay on £90,000 as a sole trader?

After income tax (££23,432) and Class 4 NI (££3,057), a sole trader on £90,000 profit takes home ££63,511 per year — ££5,293 per month. This assumes England/Wales rates, no pension contributions and no other income.

Should I incorporate at £90,000 profit?

At £90,000, a sole trader's effective tax rate is 29.43%. A limited company structure can reduce the combined tax burden, particularly above £50,000 profit, but involves accountancy costs, administrative overhead and Companies House filing obligations. The saving needs to outweigh the additional cost. Use a qualified accountant to model your specific situation before changing structure.

Other income levels

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Want to model your exact position?

Adjust pension contributions, student loan plan, region and other income in the full calculator.

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