Can I sign up my son/daughter who is under 18 (underage)? Nina February 04, 2021 19:03 Updated Follow Unfortunately, no. Users must be at least 18 to open a Dacxi account. Also, you cannot open an exchange account on behalf of another person. See our Terms and Conditions > Eligibility. Related articles UK | What regulation does Dacxi come under? Referring spouses or family and friends at the same address How do I access the Customer Learn page? Withdrawal limit | Fiat and crypto Why am I not a Partner if I signed up through a Dacxi programme gift? Comments 0 comments Article is closed for comments.