(A) Sales of Dealers in Personal Property. - Under rules and regulations prescribed by the Secretary of Finance, upon recommendation of the Commissioner, a person who regularly sells or otherwise disposes of personal property on the installment plan may return as income therefrom in any taxable year that proportion of the installment payments actually received in that year, which the gross profit realized or to be realized when payment is completed, bears to the total contract price.
(B) Sales of Realty and Casual Sales of Personality. - In the case (1) of a casual sale or other casual disposition of personal property (other than property of a kind which would properly be included in the inventory of the taxpayer if on hand at the close of the taxable year), for a price exceeding One thousand pesos (P1,000), or (2) of a sale or other disposition of real property, if in either case the initial payments do not exceed twenty-five percent (25%) of the selling price, the income may, under the rules and regulations prescribed by the Secretary of Finance, upon recommendation of the Commissioner, be returned on the basis and in the manner above prescribed in this Section. As used in this Section, the term 'initial payments' means the payments received in cash or property other than evidences of indebtedness of the purchaser during the taxable period in which the sale or other disposition is made.
(C) Sales of Real Property Considered as Capital Asset by Individuals. - An individual who sells or disposes of real property, considered as capital asset, and is otherwise qualified to report the gain therefrom under Subsection (B) may pay the capital gains tax in installments under rules and regulations to be promulgated by the Secretary of Finance, upon recommendation of the Commissioner.
(D) Change from Accrual to Installment Basis. - If a taxpayer entitled to the benefits of Subsection (A) elects for any taxable year to report his taxable income on the installment basis, then in computing his income for the year of change or any subsequent year, amounts actually received during any such year on account of sales or other dispositions of property made in any prior year shall not be excluded.