Section 37National Internal Revenue Code of 1997 (Republic Act No. 8424), Sec. 37

Special Provisions Regarding Income and Deductions of Insurance Companies, Whether Domestic or Foreign. -

(A) Special Deduction Allowed to Insurance Companies. - In the case of insurance companies, whether domestic or foreign doing business in the Philippines, the net additions, if any, required by law to be made within the year to reserve funds and the sums other than dividends paid within the year on policy and annuity contracts may be deducted from their gross income: Provided, however, That the released reserve be treated as income for the year of release.

(B) Mutual Insurance Companies. - In the case of mutual fire and mutual employers' liability and mutual workmen's compensation and mutual casualty insurance companies requiring their members to make premium deposits to provide for losses and expenses, said companies shall not return as income any portion of the premium deposits returned to their policyholders, but shall return as taxable income all income received by them from all other sources plus such portion of the premium deposits as are retained by the companies for purposes other than the payment of losses and expenses and reinsurance reserves.

(C) Mutual Marine Insurance Companies. - Mutual marine insurance companies shall include in their return of gross income, gross premiums collected and received by them less amounts paid to policyholders on account of premiums previously paid by them and interest paid upon those amounts between the ascertainment and payment thereof.

(D) Assessment Insurance Companies. - Assessment insurance companies, whether domestic or foreign, may deduct from their gross income the actual deposit of sums with the officers of the Government of the Philippines pursuant to law, as additions to guarantee or reserve funds.