£300 a day take-home pay
A £300/day contract is worth about £66,000 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 | £300 |
| Billable days assumed | 220 |
| Gross annual contract value | £66,000 |
| Take-home — inside IR35 (umbrella) | £43,499 |
| Take-home — outside IR35 (limited) | £49,987 |
| Difference | £6,488 |
At £300/day, Outside IR35 (limited company) leaves you £6,488/year better off.
Adjust the numbers
Change days worked, salary, expenses or umbrella margin to match your situation.
Inside IR35 (umbrella)
£43,499/yr
You keep 66% of the contract value
Assignment rate£66,000
Umbrella margin-£1,150
Employer NI-£7,769
Apprenticeship levy-£284
Income tax (PAYE)-£10,151
Employee NI-£3,147
Take-home pay£43,499
Outside IR35 (limited company)
£49,987/yr
You keep 76% of the contract value
Company revenue£66,000
Director salary-£12,570
Employer NI on salary-£1,136
Corporation tax-£10,108
Dividend tax-£4,769
Income tax + NI on salary-£0
Take-home pay£49,987
Outside IR35 (limited company) leaves you £6,488/year better off at this rate.