Anyone earning £100,000+ in the UK does have to file a return, however most of the calculations are done for you. Your employer handles all deductions from your

Anyone earning £100,000+ in the UK does have to file a return, however most of the calculations are done for you. Your employer handles all deductions from your payslip and gives you a summary form of all tax paid, which you then report in your tax return with additional details that might affect your taxes such as capital gains, additional pension contributions or investment and rental income.