Council chief finance officer Andrew McKenzie said this would mean about $200 million of rates currently collected by the business sector being collected by the residential sector, or an increase in households rates of about 20 per cent.
Last night, Mr Barnett said he wanted the council to take a fresh look on rates by setting household and business rates at the same level, albeit with measures to protect households from big rates rises.
"The council has had two years to produce a transparent and fair transition plan to put Auckland rates onto a level playing field. It is on track to fail," he said.
Meanwhile, the council is proposing a differential of 2.03 for Franklin businesses after it was found that 41 per cent of businesses faced rates increases of more than 50 per cent. This was because the former Franklin District Council not charging a business differential.