Millions could see council tax bills rise by over £100 in 2021. (PA) Millions of household could see their council tax bill increase by over £100 this year with more than half of local councils planning to increase costs. Last year’s spending review gave councils permission to raise council taxes from April 2021. The additional money raised through teaxes will pay for rising police and council care costs. This would mean that households would have to pay up to £109 more on average for their bill. Councils to set their own budget More than half of UK councils are looking to increase their council tax by the maximum five per cent, according to the the Local Government Chronicle research suggests.