Why the Permanent Equivalent Is Lower
A contractor on £1150/day earns £253,000/year gross. But a permanent employee on that salary also gets employer pension (3-10%), 25-28 days holiday (paid), sick pay, employer NI contributions (15%), and training, equipment, and other benefits. These benefits are worth roughly 25-35% of salary, so the equivalent permanent salary is £189,750.
Take Home at £253,000 (2025/26)
On PAYE or inside IR35, £253,000 loses £100,053 to income tax and £7,071 to National Insurance at 2025/26 rates (thresholds frozen to 2028), leaving £145,876 — £12,156 a month, or 57.7% of gross. The marginal rate on every extra pound is 47% (45% additional rate plus 2% NI), and the personal allowance is long gone: it tapers away between £100,000 and £125,140. By contrast, the £189,750 permanent equivalent nets £9,363/month — £2,793 less per month, which is precisely the premium you are being paid for carrying contractor risk. For scale, £253,000 is roughly 7.2 times the UK median full-time salary of about £35,000.
Pension Contributions Change the Maths
Pension contributions are the single most effective tax lever at this income, with relief at your 47% marginal rate. The standard annual allowance for 2025/26 is £60,000, and under HMRC's rules (gov.uk guidance on the tapered annual allowance) the taper only begins once adjusted income exceeds £260,000. At £253,000 you are close to that line — adjusted income includes employer pension contributions, so a large contribution can itself trigger the taper, which removes £1 of allowance for every £2 above £260,000 down to a £10,000 floor.
Day Rates Compared
| Day Rate | Annual (220 days) | Perm Equivalent | Take Home/Mo (contract) |
|---|---|---|---|
| £900/day | £198,000 | £148,500 | £9,727 |
| £1000/day | £220,000 | £165,000 | £10,699 |
| £1050/day | £231,000 | £173,250 | £11,185 |
| £1100/day | £242,000 | £181,500 | £11,671 |
| £1150/day | £253,000 | £189,750 | £12,156 |
| £1200/day | £264,000 | £198,000 | £12,642 |
| £1250/day | £275,000 | £206,250 | £13,128 |
| £1300/day | £286,000 | £214,500 | £13,614 |
| £1350/day | £297,000 | £222,750 | £14,100 |
Browse all day rate to salary equivalents, see the full £1150/day tax breakdown or the £1150/day inside vs outside IR35 comparison. High earners should also read the £100k tax trap guide and high-earner tax tips.
FAQs
What is £1150 day rate equivalent salary?
£1150/day = £253,000/year (220 days). The permanent equivalent salary is approximately £189,750 when accounting for benefits like pension, holiday pay, sick pay, and employer NI.
How much do you take home on £1150/day inside IR35?
About £12,156/month (£145,876/year) after income tax and National Insurance at 2025/26 rates (thresholds frozen to 2028) — an effective deduction rate of 42.3%.
What does the £189,750 permanent equivalent pay after tax?
A £189,750 salary takes home about £9,363/month (£112,354/year), plus employer pension, paid holiday and sick pay that the contractor must fund from the day rate.