The annual profit tax filing due dates are different accounting to the accounting dates (i.e. the date of commencement on Business registry Certificate) of the companies: Accounting date between 1 April to 30 November: 30 April Accounting date between 1 to 31 December: 31 August Accounting date between 1 January to 31 March: 15 November   All profits tax returns are submitted to the Inland Revenue Department (IRD) within one month of issuance. The returns depend on the type of your business: Non-Resident Persons (BIR54) Corporations (BIR51) Persons other than Corporations (BIR52) The date of submission is mentioned on the first page of the return. For electronic filing, the deadline may be extended by 2 weeks.