There are plenty of websites that explain the UK tax structure. Easiest way to do it as a"quick check" on what you will keep is taking away just over 30% (if you earn below £100k, thereafter it becomes very painful to watch your paycheck vs tax... even worse at £150k and over)So lets say you actually get £65k (salary and bonus). That one is nice and easy, you will get around £40k of that money. Rest is tax.In the UK, from about £32k onwards you pay 40% tax