Topeka ? Gov. Kathleen Sebelius supports repealing a 7-month-old law that critics say has forced some Kansans to pay too much sales tax on used vehicles.

“This law was a mistake,” Sebelius said during a Friday news conference. “I don’t think there’s any question that Kansans feel it’s unfair, and I feel it’s unfair.”

The Senate unanimously approved a bill Thursday to repeal the law and provide $5 million in refunds to aggrieved taxpayers. The state also estimates it would forgo $5.2 million in revenues during the fiscal year beginning July 1, with the amount increasing slightly each following year.

Speaker Doug Mays, R-Topeka, has said the House would act quickly on the measure and that he expected it to pass.

“I’m glad that the Legislature’s moving quickly to get me a bill,” Sebelius told reporters. “I’m looking forward to having it on my desk.”

The law was designed to catch tax cheats by changing how some vehicles are valued for sales tax purposes. But critics said the law didn’t distinguish between used vehicles in mint condition and vehicles with high mileage, mechanical problems or dents and scratches.

The statute applied to “occasional” vehicle sales, typically by one individual to another. In some cases, values placed on vehicles for tax purposes have been twice as high or higher than the sale price.