All Pages On This Page Getting Started Expand Getting Started Collapse Getting Started Understanding Tax Tables (PAYE, NIS, Health Surcharge) Setting Up Deduction Types Setting Up Earning Types Setting Up Departments, Division, Positions and Skills Time and Attendance Payroll Personnel Management User & System Control FAQs Expand FAQs Collapse FAQs Payroll My worksheet is set to Manual mode. How to switch to Automatic? How to change a worksheet date? How to change a worksheet’s payroll period? Error message when opening a worksheet “Error in Certificate. Please contact TTPay support.” Earning is not showing up in the correct category in the TD4 Why aren’t the employer’s/employee’s NIS contributions accurate on the NI184? How to change a worksheet’s payroll period? Published on August 27, 2026 Go to Utilities > Batch Changes and WS Payroll Period. Select the correct worksheet in ‘Worksheet Ref’ Enter the new worksheet period in ‘New WS period’ Click ‘Change’. Done! Next Error message when opening a worksheet “Error in Certificate. Please contact TTPay support.” Earning is not showing up in the correct category in the TD4 Why aren't the employer's/employee's NIS contributions accurate on the NI184?