If you live in Japan and have ever wondered “is there a Roth IRA equivalent here?” — the answer is NISA, and yes, foreign residents can use it. I’ve been investing through NISA for over a year as a 30-year-old company employee in Tokyo, and in this article I’ll show you exactly what happened to my money.
What NISA Is (and Why Foreign Residents Should Care)
NISA (Nippon Individual Savings Account) is Japan’s tax-free investment scheme. Inside a NISA account, capital gains and dividends are completely exempt from the standard 20.315% tax that applies to ordinary brokerage accounts.
The new NISA system, launched in 2024, allows up to ¥3.6 million per year (split into a “Growth Quota” and a “Tsumitate Quota”) with a lifetime cap of ¥18 million. There is no expiration on the tax-free status.
Eligibility for foreign residents
- Must be a resident of Japan (have a juminhyo)
- Must be 18 years or older
- Visa type doesn’t matter as long as you have residency
- You typically need a My Number card
I opened my NISA with Rakuten Securities. The whole process took 7 business days from application to my first trade.
What I Actually Bought (and Why)
My NISA strategy is boring on purpose. I buy two index funds every month through dollar-cost averaging (DCA):
- eMAXIS Slim All Country (Oeza) — global stocks index, expense ratio 0.05775%
- eMAXIS Slim S&P 500 — US large-cap index, expense ratio 0.0814%
Total monthly investment: ¥100,000. I don’t try to time the market. I just buy on the same day every month, regardless of what the news says.
My 1-Year Result (My Real Experience)
Here’s what surprised me the most: I almost panic-sold in October when the market dropped 8% in a week. I had just put in a lump sum bonus, and seeing red numbers everywhere made me question everything.
I didn’t sell. I kept buying my scheduled amount. By March, my portfolio was up 14.2%, with all gains tax-free because they were inside NISA. Outside of NISA, I would have owed roughly ¥30,000 in tax on the gains realized so far.
The lesson wasn’t “I’m smart.” It was “the system is smart — when you take taxes out of the equation and remove your ability to time the market, you just win by waiting.”
3 Things I Wish I’d Known Earlier
- Choose a broker that supports English statements. SBI Securities and Rakuten Securities both have English interfaces but switching languages requires going into deep menu settings. Set this up immediately after account opening.
- The Tsumitate Quota (¥1.2M/year) is for index funds only. If you want to buy individual stocks, you must use the Growth Quota (¥2.4M/year). Plan accordingly.
- NISA losses cannot offset gains in other accounts. If your NISA position loses money, you can’t deduct that loss from gains elsewhere. So NISA works best for buy-and-hold strategies, not speculation.
Summary: Next Steps
- Open a NISA account at Rakuten or SBI Securities (both accept foreign residents)
- Start with the Tsumitate Quota and index funds — boring but effective
- Set a fixed monthly amount and automate the purchase
- Do not check your balance more than once a month
The biggest mistake foreign residents make is waiting “until they understand the Japanese system better.” You don’t have to understand everything to start. Open the account, buy one index fund this month, and let time do the work.
Disclaimer: This article is for informational purposes only and is not investment advice. It does not recommend any specific financial product. Investment decisions are your sole responsibility, and you may lose your principal. Tax rules and financial regulations described here reflect the situation as of 2026 in Japan and may change. Please consult a licensed advisor or the official sources (FSA, NTA, MOF) for the latest information.
