When payroll calculates a per-day salary rate, it has to divide the monthly amount by something, and that choice, the working-days basis, quietly changes the result for anyone with a partial month, whether from a joining or leaving date, or loss of pay.

The two common methods

Some companies use a fixed 26-day divisor, common in Payment of Wages and factory-payroll contexts, which effectively excludes one weekly off from every month’s calculation. Others use the actual calendar-day divisor for that specific month, 28, 29, 30 or 31, whatever the real number happens to be. Neither is a single mandated national standard; the choice is set by company policy, and it genuinely changes the per-day rate. A ₹60,000 monthly salary works out to about ₹2,308 a day on a 26-day divisor, but only about ₹1,935 a day in a 31-day month on the calendar-day method, a real difference for anyone with unpaid days that month.

Frequently asked questions

Does the divisor choice affect every deduction, or just LOP?

It affects any calculation built on a per-day rate, which typically includes loss of pay and can also affect pro-rata calculations for joiners and leavers, depending on how the specific payroll system is configured.

Can a company switch between the two methods?

Technically yes, but doing so changes take-home pay for anyone with partial-month adjustments, so it’s not something to change without clear communication to employees first.

See the effect of different divisor methods with the Working Days Calculator.