MADISON, Wis. (AP) -

A new study estimates changes Republican lawmakers made to Gov. Scott Walker's executive budget will result in a half-billion dollar deficit going into the next two-year spending plan.

The Wisconsin State Journal reports a nonpartisan Legislative Fiscal Bureau's analysis of the 2013-2015 budget the Legislature's finance committee last week would leave the state with a $505 million shortfall in the 2015-2017 biennium.

The committee nearly doubled a Walker income tax cut, increased public school aid and transportation spending, added spending on school vouchers and created a private school tuition tax deduction.

The fiscal bureau's report also says property taxes on an average $154,800 home would increase $58 over the next two years compared with $19 in Walker's original budget.