This year, the Oaktree Tasmania assistant director has volunteered herself to ``live below the line'' next week, for her fourth year running.

The campaign will see bold Australians live on no more than $2 a day for five days.

With the number of people living in poverty worldwide now halved, Ms Devadass is hopeful the sacrifice and support of Tasmanians can bring that total to zero.

``It's a window into how some people live,'' she said.

``You don't have a choice, you're usually eating one staple of rice, or pasta or noodles.

``And you come home from work after a day of rice and have to eat more rice.

``You really feel that lack of choice. It's just food to us, but people living in extreme poverty don't have any choice.''

The Launceston local said although Tasmania had only participated in the Live Below the Line campaign for five years, more than $2 million was raised last year Australia-wide, which allowed vital education programs to be initiated in third world nations.

``The reason why we chose $2 a day is because there are 1.2 million people who actually do live on $2 a day,'' Ms Devadass said.

``You realise by Thursday that this is unacceptable,'' she said.

``But the money that we raise goes to education projects. We believe education is the key to breaking the poverty cycle.''

Residents can sign up for the Live Below the Line campaign at livebelowtheline.com.au.