If you have children, you lose out on child benefit between 60k and 70k, which adds an equivalent 10% in that margin. Between 100 and 120k there is also the lo

If you have children, you lose out on child benefit between 60k and 70k, which adds an equivalent 10% in that margin. Between 100 and 120k there is also the loss of personal allowance, which results in a marginal tax rate of 62% in that bracket. If you have children between the ages of 3 and 4, you also lose out on 15 hours/week childcare, resulting in that marginal tax rate hitting 89%