"Senate Republicans look forward to reviewing Gov. Gianforte's budget proposal in detail and working with the governor to enact a conservative budget that includes Republican priorities," Blasdel said.
Democratic leadership said they would work to direct tax breaks to the middle class.
"The governor's proposal is the starting point of a lengthy legislative budget process," said a statement from minority leaders Rep. Kim Abbott, D-Helena, and Sen. Jill Cohenour, D-East Helena. "Democrats are committed to creating jobs and opportunity for all Montanans, and that means holding the line on unnecessary cuts made on the backs of working families to pay for tax breaks for the wealthy."
Gianforte's budget also proposed eliminating the business equipment tax for roughly 4,000 businesses in the state by raising the exemption from $100,000 to $200,000.
Heather O'Loughlin, the co-director of the left-leaning Montana Budget and Policy Center, said Thursday the income tax cut would equate to a reduction of about $1,314 in the tax bill for the top 1% of those in the state, or people that earn $509,000 or more annually. An analysis of the proposal by the center and Institute on Taxation and Economic Policy found that people earning from $40,000-$63,000 would see a reduction of about $14.
"He is providing pretty sizable tax cuts that are largely going to benefit the wealthy at a time when we have a strained budget and communities are struggling," O'Loughlin said.