BATON ROUGE, La. (AP) — A federal court jury has convicted a Baton Rouge man on six tax charges that carry possible penalties of as much as 18 years in prison and $1.5 million in fines.

The Advocate reports ( ) Jack Ray Carr said Wednesday he will ask the 5th U.S. Circuit Court of Appeals to reverse his conviction, unless he can take his case "straight to the U.S. Supreme Court."

Carr was convicted on one count of attempting to interfere with the due administration of the IRS, four counts of filing a false income tax return, and one count of aiding and assisting in the preparation of a false income tax return.

In 2009, the Justice Department said Carr claimed more than $150,000 of fraudulent tax refunds.

A sentencing date was not set.