from odoo import models class PosSession(models.Model): _inherit = 'pos.session' def _load_pos_data(self, data): data = super()._load_pos_data(data) if self.env.company.country_code == 'BE': intracom_fpos = self.env["account.chart.template"].with_company(self.company_id).ref("fiscal_position_template_3", False) if intracom_fpos: data['data'][0]['_intracom_tax_ids'] = intracom_fpos.tax_ids.tax_dest_id.ids return data