Excel to Payroll Software: A Migration Guide for Nepali SMEs

Short answer: Migrate payroll from Excel in three stages — import employee and salary structure data first, run one full payroll cycle in parallel with your existing spreadsheet to check the numbers match, then switch over fully — rather than attempting a hard cutover mid-month.

Why Excel payroll eventually breaks

Spreadsheet payroll works fine at a handful of employees. It usually starts breaking down around the point where SSF, TDS, leave deductions, and overtime all need to be calculated correctly for every employee, every month, without a single formula error — because at that point, one wrong cell reference silently produces a wrong payslip, and nobody notices until an employee complains or an audit finds it.

Step 1: Migrate employee and salary structure data first

Before touching a single payroll run, get every employee's basic salary, allowances, and SSF enrollment status correctly entered into the new system. This is the step most migrations rush, and it's the one that causes every downstream number to be wrong if it's sloppy.

Step 2: Run one cycle in parallel

Process one full payroll cycle in the new software while still keeping your Excel process as the source of truth. Compare every employee's net pay, SSF, and TDS line by line between the two. Differences at this stage are cheap to catch — differences after go-live are not.

Step 3: Reconcile attendance data separately

If you're also introducing biometric or mobile attendance for the first time, treat that as its own short pilot — a week or two with a small group — before tying it directly into a live payroll run. Attendance data feeding into payroll is where migrations most often surface unexpected edge cases, like overtime rules that were being handled informally before.

Step 4: Go live, keep the old spreadsheet as a backup for one cycle

Once the parallel run matches, switch over — but keep the old spreadsheet accessible for at least one more cycle, purely as a reference if a question comes up. After that, it's safe to retire.

What good migration support looks like

A vendor that offers a real onboarding call, helps with the first data import, and stays reachable through the first live payroll cycle is doing the part of the job that actually determines whether the migration succeeds — the software itself is the easy part.