This Law Firm Publication by Fisher & Phillips LLP discusses an increase in Ohio's minimum wage to $8.10 per hour. In addition, tipped employees must now be paid at least $4.05 per hour. Ohio's minimum wage is adjusted annually based on the state's consumer price index (CPI). For 2015, only Ohio employers with an annual gross revenue of $297,000 or more are required to pay their employees the minimum wage. The wage increase is effective January 1, 2015.