What is the minimum age to open a Vantikcard account? Matthias July 22, 2021 13:52 Updated To use the Vantikcard you must be at least 18 years old. Related articles How much does the Vantikcard cost? How much cashback do I get with my Vantikcard? Can I choose the name on my Vantikcard? Do I have to change banks to use my Vantikcard? How can I invest in the Vantik fund in addition to the cashback? Comments 0 comments Please sign in to leave a comment.