Two Tax determination in EK02 FICA

Dear Experts,

We have requirement to post service tax at two different rates with effect from 1st June.

System should calculate service tax @ 12.36% for FICA posted documents on or before 31.05.2015 and after 01.06.2015 service tax should be 14%.

We have created new tax code for service tax @ 14% and maintained in FICA IMG path "Postings and Documents --> Document --> Maintain Document Assignments --> Define Sales/Purchase Tax Determination" as well as in EK02. But system gives only one option to maintain tax code in EK02 against combination of Main-Sub transaction and GL account.

Can we maintain two different tax determination in EK02 against combination of Main-Sub transaction and GL account ?

Thanks in advance.

Best Regards,

Mitesh Sureliya.