What's New 2016.2.16. Guide to the Business Japanese Proficiency Test June 2016 The Business Japanese Proficiency Test is a test to measure your proficiency in communicating in the Japanese language required in business settings. 1. Test Date: June 26 (Sunday), 2016 2. Test Fee: 7,000 yen 3. Application Period: March 1 (Tue) to May 20 (Fri), 2016. You can also find further information at http://www.kanken.or.jp/bjt/english/