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e-FILING
February 14
BIR Forms 1601-C (Monthly Remittance Return of Income Taxes Withheld on Compensation) and/or 0619-E (Monthly Remittance Form of Creditable Income Taxes Withheld-Expanded) and/or 0619-F (Monthly Remittance Form of Final Income Taxes Withheld) – eFPS Filers under Group B. Month of January 2026