Alternative 1--Tables for Percentage Method of Withholding (For Wages Paid in 2006). Summary: These tables are to figure the percentage rate an employer uses to calculate income tax withheld determined by the payroll period (Weekly, Biweekly, Semimonthly, Monthly, and daily or miscellaneous), the filing status (Single or Married) of the employee, and the amount of wages (minus withholding allowances).