Section 42 Bis For the assessable income under Section 40 (1) and (2), a standard deduction of 40 per cent shall be allowed as expense. However, the amount deducted shall not exceed 60,000 Baht in total.
In a case where both husband and wife have income under paragraph 1 and their marital status exists throughout tax year, each shall be entitled to deduct expenses in the amount specified in paragraph 1.