1. Those are using "the business tax account number and password" do not need to reapply. For other related services, please go to the page of "Business tax/Apply for Account Number and Password".
2. "Register for Account Number and Password", "Reset your Password", "Forgot your Password" and "Forgot your Account Number" will link to Website of The e-Filing and Tax Payment Service of the Ministry of Finance (R.O.C).