Dying with Dignity Tasmania president Margaret Sing confirmed that she is in discussions with MPs for a new Voluntary Assisted Dying Bill, based largely on the last bill which failed to pass in 2017.

It was the third euthanasia vote in Tasmania and was soundly defeated 16 votes to eight.

Ms Sing said the new bill would include amendments to address concerns raised in 2017 which were based on "up to date information and advice from world experts".

"Our aim is to get broad consensus on a law that best meets the needs and wishes of Tasmanians, based on the best available evidence of what will be effective in the Tasmanian situation and will prevent risks and abuses," Ms Sing said.

"The draft Tasmanian bill has the same major safeguards as the Victorian Voluntary Assisted Dying Act and legislation elsewhere but there are differences.

"The Tasmanian bill provides a 'last resort' option for people with intolerable and unrelievable suffering as a result of advanced serious, incurable illnesses.

"As the Victorian Premier, Daniel Andrews, has said, the Victorian Act is the most conservative in the world. It is very restricted and bureaucratic and this was considered necessary to get the first State law passed."

The Victorian legislation was passed in 2017 but comes into effect on Wednesday this week.

Ms Sing said she was confident the legislation would be supported by the Tasmanian Parliament.

Liberal member for Clark and Speaker Sue Hickey, a Catholic, is likely to support it with adequate safeguards.

"I will listen to all the debate and it would need to have the right protections. I believe in people's right to choose," Ms Hickey said.

"I don't think you should prolong a person's agony."

Independent member for Mersey Mike Gaffney is expected to be responsible for the bill in the Upper House.

He has visited and spoken to euthanasia experts in Canada, Belgium, The Netherlands and Switzerland.

"It is about the right to choose and I am sure the Tasmanian bill will be well crafted," Mr Gaffney said.

"The people I've spoken to want to be able to go out in dignity and in a way that is not painful or distressing to others."

Greens leader Cassy O'Connor said with the Victorian legislation becoming operational, "the time has surely come to give Tasmanians a stronger say in their own end of life decisions".

"The law as it stands today does not protect or adequately respect the right of deeply suffering people for whom palliation is ineffective," Ms O'Connor said.

"This is a critical reform. It has compassion and respect for human dignity at its core."

Catholic Archbishop of Hobart Julian Porteous is overseas but he and other church groups opposed the legislation in 2017.

At the time they were concerned "that the safety and protection of the vulnerable in our society, particularly our elderly and severely disabled, will be put at risk should this Bill be approved".

In a letter to MPs signed by six church leaders they said: "Taking life is never the compassionate option. Seeking to relieve pain and accompanying the person through the difficulties they face is the only loving response to those suffering incurable and irreversible illness."