£450 Day Rate After Tax UK (2026/27) — Inside vs Outside IR35
A £450/day UK contractor rate over 220 billable days generates £99,000 in annual contract revenue. Operating Outside IR35 via a Limited Company yields £65,349/year (£5,445.75/month) compared with £60,484/year (£5,040.32/month) Inside IR35 via an Umbrella company—a difference of £4,865/year.
| £450/Day IR35 Metric (220 Days) | Inside IR35 (Umbrella) | Outside IR35 (Limited Company) |
|---|---|---|
| Gross Annual Contract Value | £99,000 | £99,000 |
| Employer NI (13.8%) & Levy | £11,619 | £1,045 (on £12,570 salary) |
| Corporation Tax (19%–25%) | £0 (Taxed via PAYE) | £18,400 |
| Personal Income / Dividend Tax & NI | £25,597 | £12,406 |
| Net Annual Take-Home Pay | £60,484/yr | £65,349/yr |
| Net Monthly Take-Home Pay | £5,040.32/mo | £5,445.75/mo |