13th month pay equals total basic salary (sweldo) earned this year divided by 12. If you worked fewer than 12 months, your employer pays a proportional amount based on months served.
13th month pay = (total basic salary earned during the year) ÷ 12. Prorated for partial-year employment based on months actually worked.
Full-year employees typically receive one month's basic salary. This tool uses basic sweldo only, not allowances or overtime.
13th month pay may still be taxable (may buwis) above the ₱90,000 annual exemption. Figures are estimates for employed workers in the Philippines.