Yes -- well, only one fully active NISA account per year. You can move that account to a different financial institution during the year, but you have to be aware of the effects and procedures. Once you change the institution at which you have an active account, your existing account remains valid at the previous financial institution until the five-year NISA term is up -- you're free to to sell the assets tax-free at any time -- but no additional purchases can be made through it. In addition, you can only change accounts for the current year if you do so BEFORE October 1 AND haven't made any purchases that year through your existing account; changes made after October 1 take effect the following year. Finally, there's no such thing as transferring assets from one NISA account to another, nor are rollovers of assets in existing accounts possible.Tkydon wrote: ↑Thu Nov 03, 2022 5:30 amOnly One NISA Account in any one Tax Year
The process itself can be expected to take two or three weeks to complete because the change has to be cleared with the tax office.
See this page for details and various examples in Japanese.