The average National Disability Insurance Scheme plan is worth $80,000 in the North - more than $25,000 lower than the average plan in Hobart.
And the federal minister responsible for overseeing the scheme, Stuart Robert, said this disparity between plan costs between urban and rural areas highlights the need for the scheme's reform.
According to government data broken down by electorates, the average NDIS plan budget is $105,600 in Clark, $70,200 in Lyons, $68,900 in Franklin, $80,000 in Bass, and $81,300 in Braddon.
The data shows disparities between towns and the region surrounding them.
For example, the average plan is worth $86,000 in the Launceston council area, but $71,700 in the Northern region excluding Launceston.
Mr Robert said there was 53-per-cent difference between average NDIS plan values between the highest in Clark and the lowest in Franklin even though they had similar numbers of active participants.
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"Access to the NDIS and a NDIS participant's plan should not be determined by your postcode and the data released today demonstrates we have a way to go to deliver a simpler, faster, fairer and more flexible NDIS in Tasmania," Mr Robert said.
He said draft legislation to give effect to the reforms would be released shortly ahead of its introduction to Parliament.
Mr Robert said it was anticipated the legislation to reform the scheme would take effect during the middle of the year.
Some areas of the disability sector have claimed independent NDIS assessments are often incomplete or rushed.
Mr Robert said independent assessments would remain in the system.
"We're now on the second trial of independent assessments, the first one, starting in 2018," he said.
"We'll continue to engage strongly with the sector, as we have all the time."
There are now more than 10,000 Tasmanians on the National Disability Insurance Scheme.
This includes 9868 active participants and 241 children early childhood early intervention supports.