Timing Requirements for Wage Payments in MontanaMontana 's wage payment law applies to all employers except the United States, agricultural employers, and those who have entered into collective bargaining contracts. Wages must be paid at least every 10 business days, except for professional, supervisory, or technical employees who by custom are paid at least monthly; a five-day holdback is permitted. Employers may pay wages due in the ensuing pay period when an employee submits a timesheet after the employer's deadline for processing timesheets for a particular pay period. |