SALT LAKE CITY – Utah strip clubs are fighting the topless tax. A new state sin tax is to go into effect in July.

Strip bars and escort services will face a special 10-percent levy, on top of income and sales taxes.

Sex-industry lobbyist and attorney Andrew McCullough is making a federal case of the topless tax. He’s asked a court to toss out the tax as unconstitutional.

McCullough contends the tax violates free speech rights and singles out one type of business. Supporters of the sin tax say it will raise millions of dollars to treat sex offenders.