​​​​​​​​​​​​ Return to SEC Calculator Step by Step Guide   Step 1  Select the Assessment Period. SEC will be computed for CPF contributions made for the months selected. Step 2 Click on the Add Employee button to display the Add Employee form.  ​ Step 3 Enter your employee's name. (Optional) Step 4 Enter the employee's month and year of birth. Step 5 Select Cohort category from drop down. Step 6 Enter your employee's total monthly wage (round to the nearest dollar).​​ Step 7 Click on the Ok button to add the employee information to the calculator table. Step 1Select the Assessment Period. SEC will be computed for CPF contributions mande for the months selected.Assessment Period Assessment Period   Step 2Click on the Add Employee button to display the Add Employee form.        Step 3Enter your employee's name. (Optional)Employee Name Employee Name   Step 4Enter your employee's month and year​ of birth.Month and Year of Birth (MMYYYY)* ​ Month and Year of Birth (MMYYYY)* ​   Step 5Select Cohort category from drop down.Cohort Category* Cohort Category*   Step 6Enter your employee's total monthly wage (round to the nearest dollar).​​​​   WAGE ($)Jan-12 Feb-12 Mar-12 Apr-12 May-12 Jun-12​   Step 7Click on the Ok button to add the employee information to the calculator      Return to SEC Calculator​   ​​