Methods of calculation
The tax base shall be determined by the following methods:
The tax base is calculated by correcting , by applying the provisions of the Corporate Income Tax Act, the accounting profit determined in accordance with the rules laid down in the Commercial Code, in the other laws relating to such determination and in the provisions issued in implementation of the aforementioned rules.
The taxable base may be determined totally or partially by applying the signs, indexes or modules to the sectors of activity determined by the Corporate Income Tax Act.
This method is applied to entities that benefit from the special regime for shipping entities based on the tonnage regulated in Chapter XVI of Title VII of the LIS (see Chapter 10 of this Practical Manual).
The application of this method is subsidiary, and may only be used under the terms established by Article 53 of Law 58/2003, of 17 December, General Tax Law.