from odoo import models, fields, api class USMIHrContract(models.Model): _inherit = 'hr.contract' mi_w4_exemptions = fields.Integer(string='Michigan W-4 Allowances', default=0) mi_w4_additional_wh = fields.Float(string="Additional Withholding", default=0.0) mi_w4_tax_exempt = fields.Boolean(string="Tax Exempt")