It could have been worse, ICIC. There have been times when tax on income has exceeded 100%!
Quote:
"Special rates have been introduced twice within the post-war years, causing income tax in certain circumstances to exceed 100%.
For 1947-48 a special contribution was payable when a person’s total income exceeded £2,000. For investment income over £5,000 it was 50%. So with income tax at 45% and surtax at 52.5%, the effective rate was 147.5%.
In 1967-68, the special charge was imposed. For investment income over £8,000, the rate was 45% which - with income tax at 41.25% and surtax at 50% - meant a total rate of 136.25%."
Source:
http://webarchive.nationalarchives.gov.uk/+/http://www.hmrc.gov.uk/history/taxhis7.htm