This unexpected step is intended to reduce the lack of budgetary funds.
A two-tier tax system will be introduced from April: income up to $640,000 will be taxed at a maximum rate of 15%, and anything above that will be taxed at 16%. Currently the rate for all individuals is 15%.
The move will affect about 12,000 people, or about 0.6% of taxpayers.
The deficit for the year ending March 31 is forecast at HK$101.6 billion, almost double the estimate a year ago.
The last time Hong Kong raised its general payroll tax rate was in 2003, when it was increased to 16%. The rate was lowered to 15% from 16% in 2008 after the city reported a record budget surplus. The city has no GST or capital gains tax.