Delegate Ron Walters asked Muchow how much the state would need to raise its sales tax to eliminate West Virginia's 34.7-cent gas tax.
Muchow said gas taxes generate about $300 million in the state annually, so the state would need to raise sales tax from six percent to 7.5 percent to make up the difference.
If West Virginia wanted to repeal both its gasoline and diesel tax, sales tax would need to jump to eight percent, Muchow said.
Comparing West Virginia and Virginia's tax incomes isn't exactly fair, Muchow pointed out, because one percent of Virginia's state sales tax already goes to road construction.
He said about half of the commonwealth's public education system also is funded locally, while local funds only cover about a quarter of West Virginia's education budget. Most school funding here comes from the state budget, $1.2 billion in 2013 alone.
House Finance Committee Chairman Harry Keith White, D-Mingo, asked Revenue Secretary Charles Lorenson about the department's progress in processing state tax returns.
Lorenson said there is no backlog for processing state tax return checks. He said as of Monday, the revenue department had processed about 5,000 fewer tax returns than this time last year.
Muchow suspects that slowdown was caused by the Internal Revenue Service's decision to wait until Feb. 1 before issuing refund checks.
Lorenson said he does not expect business to remain slow for the department, however."There will be a point probably very soon where there are backlogs in processing," he said.