At 100 employees, manual payroll stops being a minor inconvenience and starts being a real operational risk. One person usually carries the process in their head, and if they are unavailable during payroll week, the whole company feels it. Here is what actually needs to happen to automate this properly.
Start with attendance as the source
Payroll automation only works if the attendance data feeding it is accurate and connected. If attendance still requires manual export from a biometric machine and manual entry into payroll, automating the calculation on top of that broken input just automates the wrong numbers faster. Fix the attendance connection first.
Connect leave records to the same system
Unpaid leave, half days, and approved time off need to feed directly into the payroll calculation. If leave is tracked separately, someone has to manually cross check every employee's leave record against their attendance before payroll can run correctly, which defeats the purpose of automating the calculation itself.
Build EOBI, PESSI, and FBR withholding into the calculation
For a 100 person company, calculating EOBI, PESSI, and income tax withholding manually for every employee, every month, is a meaningful chunk of the payroll workload on its own. These calculations should happen automatically based on each employee's current salary and registered province, updating instantly if either changes.
Set up approval before disbursement
Automated does not mean unsupervised. A proper payroll workflow includes a review and approval step before salaries are actually disbursed, so whoever is responsible for finance or HR leadership can confirm the numbers before payment goes out, without needing to manually recalculate anything themselves.
Give employees self service access
At 100 employees, a meaningful number of HR requests each month are simply "can you send me my payslip" or "what is my current leave balance." A self service portal where employees access this directly removes a real volume of repetitive requests from HR's plate.
What full automation actually looks like end to end
Attendance and leave data flow into a payroll calculation automatically. EOBI, PESSI, and tax withholding calculate correctly without manual lookup. A designated approver reviews and confirms before disbursement. Employees access their own payslips without emailing anyone. That is payroll running as one connected workflow instead of a monthly scramble that depends on one person's memory.
Book a demo and walk us through your current payroll process at 100 employees. We can usually identify the exact steps ready to automate first.
Adnan Khan
HR Lead, Bitsbuffer
Adnan leads HR operations and business development for Workflow Engine. He writes about Pakistani HR compliance, payroll, and workflow automation from direct operational experience.