The customs union opened up a common market, ended tariffs between states, and standardized weights, measures, and currencies within member states (excluding Austria), forming the basis of a proto-national economy.
Tolliliit avas ühisturu, lõpetas riikidevahelised tariifid ning standardiseeris liikmesriikide kaalud, mõõdud ja valuutad (v.a Austria), luues aluse eel-riigi majandusele.