Can a fintech or neobank account be relevant for FBAR reporting?
Yes. The FBAR (FinCEN Form 114) reports financial accounts held at institutions located outside the United States. An e-money or payments account is a financial account, and whether the app feels like a bank is beside the point — what matters is where the institution that holds the balance is located.
The same app can involve different institutions and account locations for different customers. Identify the institution and the branch maintaining the account; parent-company nationality alone does not settle this.