Total basic salary for the year divided by twelve, pro-rated.
What it's for
Estimate your 13th month pay for this year, including a pro-rated amount if you started, left or resigned partway through.
Before you start
Have your payslip for your basic monthly salary, and count the months you worked this calendar year, January to December.
Type your basic salary
In Monthly basic salary, type your monthly basic pay. As the note under the box says, Basic pay only — no OT or allowances: overtime, night differential, holiday premiums and allowances do not count towards 13th month pay.
Type the months you worked
In Months worked, type how many months you worked this calendar year — 12 for the whole year. If you started or left mid-month, a part month such as 6.5 is fine; do not round it up.
Check the months counted
The line under the box says how many months were counted, and the bar under Months counted fills in to match. The bar shows how many months count, not which ones.
Calculate and read the working
The answer updates as you type. Press Calculate to bring it into view, then read Calculation under it to see your total basic salary and the division.
Reading the result
If it goes wrong
Every rank-and-file employee in the Philippines is entitled to 13th month pay under Presidential Decree 851. It is your total basic salary for the calendar year divided by twelve — no more, no less. If you worked part of the year, you get a proportion of it.
No. PD 851 covers basic salary only. Overtime, night differential, holiday premium and cash allowances are excluded.
Yes. You are entitled to a pro-rated amount for the months you actually worked, payable on separation.
Important
This is an estimate, not legal or tax advice. Your employer's computation may differ where company policy is more generous than the statutory minimum. Nothing you type here is sent to our servers — the calculation runs entirely in your browser.
