The Taxpayer shall register in his accounting records all items of incomings and of deductions and all other items affecting the amount of his income tax for the Taxable Period. The Taxpayer shall file his declaration on the basis of records which are correct and which fairly reflect his income.

If a public or chartered accountant who is a member of an internationally recognized firm of accountants approved for the Taxable Period by the Director certifies that the records for the Taxable Period are correct and fairly reflect the taxpayers income computed as provided by this decree, and that the declaration is in conformity with such records, the declaration shall, in the absence of proof to the contrary established by the Director, be accepted as correct, and the income tax shown by such declaration shall be taken to be finally determined.

The Director shall issue annually a list of two or more internationally recognized firms of accountants which are approved by him in respect of Taxable Period ending in such year. In default of the certification for which provision is made in this Article, the Director may accept the taxpayer's declaration as correct, or, when required by the established facts, may decide that it is necessary to adjust the amount of income tax stated in the declaration. In no event shall the amount stated in the declaration be increased except as a result of adjudication by the courts or of arbitration in accordance with Article 13, unless the taxpayer so agrees.