The NSW government is "fixated on manipulating the City of Sydney" by moving to allow compulsory postal voting in council elections, lord mayor Clover Moore says.

Changes introduced to Parliament on Wednesday would enable councils to abolish ballot boxes and conduct elections entirely through postal votes.

Lord mayor Clover Moore. Credit:Michel O'Sullivan

This follows the introduction of new laws that make business voting at City of Sydney elections compulsory, and grant businesses two votes – a move interpreted by some as undermining the progressive Cr Moore.

There had been suggestions the new laws were burdensome for business voters living outside the area, who would have to travel to a polling booth or pre-register for postal voting.