£0.00
In the UK, once your Adjusted Net Income exceeds £100,000, your £12,570 tax-free Personal Allowance is reduced by £1 for every £2 you earn. This creates a hidden marginal tax rate of 60% on earnings between £100,000 and £125,140. Our calculator automatically factors in this taper to ensure your final tax liability is accurate.
Company benefits like medical insurance or a company car are treated as "Benefits in Kind" and reported to HMRC via a P11D form. While you don't pay for these out of your net pay, their value is added to your total income for tax calculations. This can push you into a higher tax bracket or trigger the £100k taper trap unexpectedly.
How you pay into your workplace pension drastically changes your tax calculation. Salary Sacrifice reduces your gross pay before any tax is calculated. Relief at Source contributions are taken from your net pay, but effectively expand your basic rate tax band, pulling income down from the 40% higher rate back into the 20% basic rate.