Republican Gov. Sam Brownback says he’s not drawing clear lines on what he’ll accept as the GOP-dominated Kansas Legislature considers backtracking on one of his major economic initiatives.

Brownback said Wednesday that such an approach is more helpful as lawmakers work on a plan for raising taxes. They must close a projected $406 million budget shortfall for the fiscal year beginning July 1.

The House Taxation Committee was working on a plan to raise the state’s sales tax to 6.5 percent from 6.15 percent. But the plan also would tax some business income exempted by lawmakers in 2012.

Brownback championed the 2012 policy as an economic stimulus. It exempted the profits of 281,000 business owners and 53,000 farmers from income taxes.

Influential business groups want to preserve the tax break.