Title
San Miguel Corporation vs. Inciong
Case
G.R. No. L-49774
Decision Date
Feb 24, 1981
San Miguel Corp. contested inclusion of leave pay, holiday premiums, and night differentials in 13th-month pay computation. SC ruled these are not part of basic salary under PD 851, favoring the petitioner.

Case Summary (G.R. No. L-49774)

Disputed Issue

Whether “basic salary” under PD 851 and its implementing rules includes payments for leaves (sick, vacation, maternity), rest-day and holiday work premiums, regular holiday pay, and night differentials in the computation of the 13th-month pay.

Applicable Statutory and Regulatory Provisions

• PD 851, Section 1 – Requires employers to pay a 13th-month bonus to employees earning up to ₱1,000 basic monthly salary.
• Rules for PD 851, Section 2(a) – Defines 13th-month pay as one-twelfth of an employee’s basic salary within a calendar year.
• Section 2(b) – Defines basic salary to include all remunerations for services rendered but excludes cost-of-living allowances (PD 525, LOI 174), profit sharing payments, and “all allowances and monetary benefits which are not considered or integrated as part of the regular or basic salary” as of December 16, 1975.
• Supplementary Rules – Emphatically exclude overtime pay, earnings, and other remunerations not part of basic salary from the 13th-month computation.
• Labor Code Article 87 – Overtime pay defined as basic wage plus at least 25%.
• Labor Code Article 93(c) – Special holiday work premium of at least 30% of regular wage.

Court’s Analysis

The Court held that under PD 851 and the implementing rules, “basic salary” is the sole basis for 13th-month pay. The initial rules’ broad definition permitting inclusion of all remunerations gave way to the supplementary regulations’ clear exclusions. The catch-all exclusionary clause—“all allowances and monetary benefits which are not considered or integrated as part of the regular or basic salary”—demonstrates legislative intent to omit fringe payments from the 13th-month formula. Leave ben

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