Residence-card support, My Number, postal vs online opening, nationality restrictions, non-resident policies, and required documents.
Foreign residents are best served by brokers that publish residence-card procedures — SBI, Monex, Rakuten, Matsui, and IBKR Japan — but acceptance depends on visa, tax residence, nationality, and product, and some require postal rather than online opening.
Eligibility is residence-based, not nationality-based, so a qualifying foreign resident can open an account and NISA. In practice, SBI, Monex, Rakuten, and Matsui publish procedures accepting residence-card documentation, and Interactive Brokers Japan onboards Japan residents with an English process. These are the natural shortlist for a foreign resident.
But broker policies can be stricter than the tax statute. Acceptance depends on your visa, tax residence, nationality, and the products you want, and these matrices are rarely published in full — so confirm your specific case before assuming.
How you open varies. Some brokers allow full online opening with a residence card; others require postal processing for foreign nationals, which is slower. If speed matters, check the exact path for your nationality. US citizens and green-card holders complete a FATCA declaration and can face product restrictions — some brokers prohibit US persons from foreign-stock trading.
Nationality restrictions, sanctioned-country connections, or politically exposed status can trigger enhanced review or rejection. None of this is unusual, but it means the "best" foreign-resident broker is the one that accepts your specific status and carries the products you want.
Before applying, prepare: a residence card with reasonable remaining validity; My Number evidence; a Japanese bank account in your own name with a name that matches your application; and, if you are a US person, awareness that FATCA and product restrictions apply. Confirm English support at each stage you need it, and if you might leave Japan, ask about the non-resident continuation policy first.
Aligning your name across the residence card, bank account, and any card is the single most important preparation, because a mismatch is the most common cause of rejection or failed bank linkage.
Brokerage (NISA/iDeCo) · Rakuten Securities
A leading low-cost brokerage for NISA and index-fund investing, integrated with Rakuten points and Rakuten Bank.
Fees: Many domestic funds and trades are low- or no-commission — verify current fee schedule.
Brokerage (NISA/iDeCo) · SBI Securities
Japan’s largest online brokerage by accounts, with a very broad low-cost fund lineup and full NISA/iDeCo support.
Fees: Many trades and funds are low- or no-commission — verify current fee schedule.
Brokerage (NISA/iDeCo) · Monex
An established online brokerage often chosen for US-stock access and research tools, with NISA and iDeCo support.
Fees: Commissions vary by product; some funds/trades are low-cost — verify current schedule.
Generally yes, if you are a tax resident of Japan (with a My Number) and at least 18. NISA is tied to residency, not citizenship, so most foreign residents qualify — with two big cautions: US citizens and green-card holders face US tax complications with Japanese funds, and NISA generally cannot continue after you leave Japan. Confirm eligibility and the current rules on the FSA site and with your chosen brokerage.