The Tax Reform introduces an optional income tax computation for self-employed individuals and corporations whom gross income is generated substantially from services. In addition, all the gross income must have been included in an informative return and subject to withholding tax.

The tax rates of the optional tax are as follows for corporations and individuals:

Gross income Tax rate on gross income
From $1 to $100,000 6%
From $100,001 to $200,000 10%
From $200,001 to $300,000 13%
From $300,001 to $400,000 15%
From $400,001 to $500,000 17%
More than $500,000 20%