The Auckland Council has confessed that the cost of a message from Mayor Len Brown to ratepayers was $376,774 - not the $200,000 quoted in a council email.
About 500,000 copies of the glossy flyer were sent to every ratepayer, despite concerns from one of Mr Brown's senior advisers that there were cheaper and more effective ways to communicate a message on rates.
The flyer included a letter from the mayor praising the council for making cost savings in hard times to keep the rates increase down to 3.94 per cent.
Mr Brown did not tell ratepayers the council had set aside $516,000 for an information campaign about the new rating system, of which $376,774 was spent on producing, printing and posting out the flyer.
The rest of the money was spent on an insert into the first rates mailout next month, and on advertising.