All perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad is His slave and Messenger. We ask Allaah to exalt his mention as well as that of his family and all his companions.
It is not permissible for you to get a loan with Ribaa (interest or usury) so that you will be able to reduce high taxes. Borrowing money with a profit [interest] is Ribaa, so it is forbidden to go ahead with it except in case of a necessity, and your case is not a necessity.
For more details, please refer to Fatwa 90430 which itself will refer you to other Fataawa as to when and when not it is permissible to avoid taxes.
Allaah Knows best.