This field was used in version 9.0 [1] to allow users to select their tax rate, but it was removed in version 12 [2] [1] https://github.com/odoo/odoo/commit/c04065abd8f62c9a211c8fa824f5eecf68e61b73 [2] https://github.com/odoo/odoo/commit/87f0d2eefb77bfc6a9a0fa7f7dcd1475c7c34639 closes odoo/odoo#80185 Related: odoo/enterprise#22441 Related: odoo/upgrade#3057 Signed-off-by: Quentin De Paoli <qdp@odoo.com>