Non-Business Credit Phone: (937) 225-4333 · Fax: (937) 496-3202   There is a "Non-Business Credit" (formerly known as the 10% rollback) for agricultural and residential parcels that applies only to tax levies passed or in existence prior to the November 2013 election. The credit does not apply to commercial and industrial parcels. Email the Auditor's Office Regarding Non-Business Credit