The power of payment digitalization as a contribution to the development of green economies at the global level can be briefly described as twins that cannot survive without each other. The analyses cover key flows of digital technology as support for green economies in the Western Balkans, which we have supplemented with payment digitalization as a factor in the development of green economies 423 Third International Scientific Conference of the European Union, China, and the USA. The key finding is that the power of digitalization in green economies is treated as integrated phenomena towards which digitalized green economies should strive today in the world. The basic priority in the work identified the direction in which the aforementioned economies should move at the global level, primarily the USA, China, and the EU, with particular reference to the economies of the Western Balkan countries and Serbia.