£100 a day take-home pay
A £100/day contract is worth about £22,000 a year over 220 billable days. Here is roughly what you keep under each IR35 status for 2025/26 — and you can fine-tune every assumption below.
| Day rate | £100 |
| Billable days assumed | 220 |
| Gross annual contract value | £22,000 |
| Take-home — inside IR35 (umbrella) | £16,985 |
| Take-home — outside IR35 (limited) | £18,744 |
| Difference | £1,760 |
At £100/day, Outside IR35 (limited company) leaves you £1,760/year better off.
Adjust the numbers
Change days worked, salary, expenses or umbrella margin to match your situation.
Inside IR35 (umbrella)
£16,985/yr
You keep 77% of the contract value
Assignment rate£22,000
Umbrella margin-£1,150
Employer NI-£2,055
Apprenticeship levy-£94
Income tax (PAYE)-£1,226
Employee NI-£491
Take-home pay£16,985
Outside IR35 (limited company)
£18,744/yr
You keep 85% of the contract value
Company revenue£22,000
Director salary-£12,570
Employer NI on salary-£1,136
Corporation tax-£1,576
Dividend tax-£544
Income tax + NI on salary-£0
Take-home pay£18,744
Outside IR35 (limited company) leaves you £1,760/year better off at this rate.