From full salary to a partial month
Four steps turn a full monthly salary into pay for the days you worked. The 13th month and bonus options follow the same idea over a longer period.
Your pay for a complete month, the starting point before any adjustment for days.
monthlyThe full salary divided by the working days in the month. This is the value of one working day.
salary ÷ daysThe days you were actually present and paid. New hires, resignees, and unpaid leave all change this number.
countedDaily rate times the days worked. This is the gross for the period, before contributions and tax.
rate × daysPaying for the days worked
day by dayA prorated salary is pay for part of a month rather than a full one. It comes up when you start mid-month, resign partway through, or take unpaid leave. The math begins with your daily rate, which is your full monthly salary divided by the working days in the month. A ₱22,000 salary over 22 working days is ₱1,000 a day, so ten days worked comes to ₱10,000, and the calculator also shows what the unworked days would have paid.
The working days you use matter. Many employers count around 22 days for a standard Monday to Friday month, which is the default here, while some daily-paid roles use a fixed factor such as 26. Your payslip or HR team can tell you which basis applies. If you took unpaid leave, switch to the days not worked option and enter those days. They are subtracted from the month so the result covers only the days that remain.
The same idea stretches over longer periods. A prorated 13th month pay is your monthly basic salary times the months you worked, divided by 12, so ₱24,000 for six months is ₱12,000. A prorated bonus is the full bonus times the share of the period you worked, though bonus rules follow company policy. These figures are gross, before SSS, PhilHealth, Pag-IBIG, and tax. For a full month after deductions, the take-home pay calculator helps, and the 13th month pay calculator covers a full year.
Questions people ask
answered in plain wordsA prorated salary is pay for part of a month rather than a full one. When you do not work every working day, for example you start mid-month, resign partway through, or take unpaid leave, your pay is adjusted to match the days you actually worked. It is worked out from your daily rate.
First find your daily rate by dividing your full monthly salary by the working days in the month. Multiply that daily rate by the number of days you actually worked, and that is your prorated pay. For example, a ₱22,000 salary over 22 working days is ₱1,000 a day, so 10 days worked is ₱10,000.
Use the paid working days in that specific month. Many companies use around 22 days for a standard Monday to Friday schedule, which is the default here. Some employers use a fixed factor instead, such as 26 days for daily-paid roles. Check your payslip or ask your HR team which basis they follow so your estimate matches.
Switch to the days not worked option and enter your unpaid days. The calculator subtracts them from the working days in the month, so the result is your pay for the days that remain. It also shows the amount you did not earn for the unpaid days.
Your 13th month pay is your total basic salary for the year divided by 12. If you worked only part of the year, it is prorated: your monthly basic salary times the months you worked, divided by 12. For example, a ₱24,000 basic salary for 6 months is ₱24,000 times 6, divided by 12, or ₱12,000. Switch to the 13th month option to compute yours.
A prorated bonus is the full bonus times the share of the period you worked. Choose the bonus option, enter the full bonus, then pick whether it covers a full year or a full month. Enter your time worked as months out of 12 for a year, or days out of 30 for a month. Bonus proration follows company policy, and some bonuses are discretionary or all-or-nothing, so check your bonus terms.
No. This shows the gross amount for the period. SSS, PhilHealth, Pag-IBIG, and withholding tax are still applied on your actual payroll cutoff, and a partial month can shift them. To estimate a full month after deductions, use the Take-Home Pay calculator.
No. Every calculation runs privately on your device. Nothing you type is stored, tracked, or sent to a server.
Where these numbers come from
straight from the sourceThe rates and rules on this page follow the official issuances below. When an agency updates a schedule, this is where to confirm the current figure against your own situation.