Statement:
In Portugal, the tax system is more complicated than in Japan

In the Tax Competitiveness Index rating Portugal holds position #34 2021 out of 37 and Japan is #24 out of 37 2021.
Position of Portugal is worse than position of Japan.

Referencies:

  1. The countries in the rating sorted by 'Overall Score' in descending order.
    Japan 'Overall Score' value is 61.5
    Portugal 'Overall Score' value is 49.0