Tasmania's Deputy Premier has confirmed plans to make local government elections compulsory.

Bryan Green has overruled the majority of councillors who prefer the current system saying it is imperative all Tasmanians cast a vote in local government elections.

Mr Green dropped his proposal to give individual councils the power to decide saying local government was overwhelmingly against the idea.

Tasmanians will now have to return their postal votes or face fines similar to those in state and federal elections.

The Minister also wants the next local government ballot pushed back 12 months to October next year, and future elections to be all in, meaning all councillors will face voters at the same time every four years.

He will introduce legislation in parliament in the next few weeks and hopes to have the changes through the Upper House by June.

Meanwhile the Chief Executive of the Local Government Association, Alan Garcia, says members have mixed feelings about the changes.

"Certainly councils thought that it should stay as it is being voluntary or the government make a decision to make everything compulsory."

"So while some councils won't support the outcome, I think all councils will be thankful that the government's finally made a decision on the matter," Mr Garcia said.