Indeed, in the UK a single working parent with one child on the minimum income working between 30 to 40 hours a week has an effective marginal tax rate of 91% (

Indeed, in the UK a single working parent with one child on the minimum income working between 30 to 40 hours a week has an effective marginal tax rate of 91% (every extra pound earned means 91 pence is transferred to the government via income tax, national insurance, and reduced benefits). No wonder most single parents in the UK don't want to work. And the well off complain about a, before deductions, rate of 40%.