Jobs and Opportunity Bonus Tax Credit Act of 2014 or the JOB Tax Credit Act - Amends the Internal Revenue Code to allow employers who employ not more than 500 full-time employees during the taxable year a business-related tax credit equal to the lesser of: (1) 50% of the job training program expenditures for a full-time employee participating in a qualified training program, or (2) $5,000. Terminates such credit after 2017.