Johnson raises prospect of 10 billion pound payroll tax cut

LONDON (Reuters) - British Prime Minister Boris Johnson raised the prospect of a multi-billion-pound cut to a payroll tax, saying he would raise the amount of earnings exempt from social security payments if he wins an election on Dec. 12.Workers currently pay National Insurance contributions (NICs) on annual earnings over 8,632 pounds, lower than the 12,000-pound threshold at which income tax becomes payable.Earlier this year, Johnson said he wanted to bring the National Insurance threshold in..