Why the Permanent Equivalent Is Lower
A contractor on £1050/day earns £231,000/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 £173,250.
Take Home at £231,000 (2025/26)
On PAYE or inside IR35, £231,000 loses £90,153 to income tax and £6,631 to National Insurance at 2025/26 rates (thresholds frozen to 2028), leaving £134,216 — £11,185 a month, or 58.1% 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 £173,250 permanent equivalent nets £8,634/month — £2,551 less per month, which is precisely the premium you are being paid for carrying contractor risk. For scale, £231,000 is roughly 6.6 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 £231,000 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) |
|---|---|---|---|
| £750/day | £165,000 | £123,750 | £8,270 |
| £800/day | £176,000 | £132,000 | £8,756 |
| £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 |
Browse all day rate to salary equivalents, see the full £1050/day tax breakdown or the £1050/day inside vs outside IR35 comparison. High earners should also read the £100k tax trap guide and high-earner tax tips.
FAQs
What is £1050 day rate equivalent salary?
£1050/day = £231,000/year (220 days). The permanent equivalent salary is approximately £173,250 when accounting for benefits like pension, holiday pay, sick pay, and employer NI.
How much do you take home on £1050/day inside IR35?
About £11,185/month (£134,216/year) after income tax and National Insurance at 2025/26 rates (thresholds frozen to 2028) — an effective deduction rate of 41.9%.
What does the £173,250 permanent equivalent pay after tax?
A £173,250 salary takes home about £8,634/month (£103,609/year), plus employer pension, paid holiday and sick pay that the contractor must fund from the day rate.