(RNS) A yearlong inquiry by the Internal Revenue Service has focused on the ministry of flamboyant faith healer Benny Hinn and questions about his organization's operations and finances, according to a newspaper report.

The issues at the center of the IRS review underlie the tax-exempt status of Hinn's organization as a church, The Dallas Morning News reported July 6.

The IRS declined to discuss the case, and the newspaper report said it's unclear whether the agency's concerns about the ministry, which is estimated to raise more than $100 million annually, are close to being resolved or will open an audit.

Hinn spokesman Ronn Torossian confirmed the inquiry and told The News the ministry has "fully cooperated with the IRS" and is not being audited. He said the IRS each year sends "thousands of letters of inquiry to a sampling of nonprofits."