The former Cincinnati-based in-house counsel for the retail chain Buddy’s Carpet was sentenced Thursday to 18 months in federal prison for his role in a tax fraud scheme, the U.S. Justice Department said.

A jury in 2008 found the lawyer, Alan Koehler, 50, guilty of conspiracy and of assisting in the filing of a false federal income tax return. Koehler, indicted in 2005, was sentenced in the U.S. District Court for the Southern District of Ohio. The former owner of the company, Leif Rozin, 68, was sentenced to about a year in prison.