Question: what is a top 1 income?
Answer: To be in the top 1% of income tax payers in the UK (i.e. to be among the 310,000 individuals with the highest income), a taxable income of at least £160,000 is required. £236,000 is required to be in the top 0.5% and nearly £650,000 to be in the top 0.1%.