Article 3. If a person who filed the July provisional return prescribed in Article 21 paragraph 1 of the Income Tax Law (including a person who has been deemed to have filed the return in accordance with the provision of Article 21-(2) paragraph 10 of the same Law) has suffered damage from calamities on or after July 2 of the year concerned and he has become subject to the application of the provision of paragraph 1 of the preceding Article after computing, as of the day when the calamities have occurred, the estimated amount of his aggregate income for the year in which the calamities occurred, and if the estimated amount of his aggregate income or the estimated tax amount computed by applying the provision of the same paragraph on the basis of the estimated amount concerned does not exceed the aggregate income or the estimated tax amount as stated in the return concerned (including the estimated tax amount computed on the basis of the estimated amount of the income tax for which the notification under the provision of Article 21-(2) paragraph 10 of the same Law has been made), the person concerned may, as may be prescribed by order, claim, notwithstanding the provision of Article 23 paragraph 2 of the same Law, the correction of the estimated amount of his aggregate income or the estimated tax amount under the provision of the same paragraph within the period of two months from the day when such calamities have occurred.