"We have step functions in (property) valuations, which cause significant challenges and difficulties for taxpayers," he said.

"We will be looking for solutions that ensure these step functions in the future are nowhere near as severe and are minimised to the degree possible."

Mr Bartlett also said that any changes to the state's taxation system would take into account the federal taxation review being undertaken by Treasury head Ken Henry.

The State Opposition and Tasmanian Greens are calling for immediate action to help business people struggling with large land tax bills, such as St Helens Supa IGA part-owner Ivan Walker.

Mr Walker said that his business's land tax bill went from $3500 for 2006-07 to more than $21,000 for the past two financial years after the property was revalued as part of five- yearly local government revaluations.

"It's not based on your turnover, it's based on your land values," he said.

"There's not one thing the Government do for the $21,000 directly to our business."

Owners of Sandy Bay's Motel 429, David and Louisa Patmore, recently received a land tax bill for $19,000, after three years of paying about $7000.

"The Government hasn't increased land tax rates so that's not the issue," Mr Patmore said.

"They're happy to receive the extra revenue, they're not putting anything back."

Mr Patmore suggested the Government return some of the revenue to the business community or place a cap on land tax.

Opposition treasury spokesman Peter Gutwein has again called on the Government to release a budget update.

Mr Gutwein also repeated calls for the land tax threshold to be lifted from $25,000 to $65,000.

Tasmanian Greens leader Nick McKim said the Government should consider imposing a 10 per cent cap on increases in land tax bills as an interim measure until a review of Tasmania's taxation arrangements was completed.