Worked example
Joy handles payroll for a 14-person architecture firm in Mandaluyong. Three people earn ₱35,000: one has been there for years, one was hired on 1 April, and one left on 15 July after 6½ months.
Her working: the long-timer gets ₱35,000. The April hire earned 9 × ₱35,000 = ₱315,000, so ₱26,250. The July leaver earned 6 months plus half of July — ₱210,000 + ₱17,500 = ₱227,500 — so ₱18,958.33, paid in her final pay. Joy accrues ₱2,916.67 per head per month in the books so December doesn't hit cash flow all at once.
For employers: accrual and the DOLE report
Accruing one-twelfth of basic payroll monthly is the cleanest way to budget. At ₱35,000, that's ₱2,916.67 per employee per month, or ₱40,833.33 a month for a team of 14 on the same rate.
After paying, employers file a compliance report through DOLE's online reporting portal by 15 January of the following year. It asks for the establishment's details, number of workers who benefited, the amount granted per employee and the total. The 13th month is deductible as a business expense and, up to the ₱90,000 ceiling, does not need income tax withheld.