What Is NISA? A Complete Guide to Japan’s Tax-Free Investment Account

Japan’s NISA (Nippon Individual Savings Account) program is one of the most powerful wealth-building tools available to Japanese residents and international investors with ties to Japan. If you’re looking for a way to grow your investments without paying taxes on your returns, NISA is worth understanding thoroughly.

What Is NISA?

NISA is Japan’s tax-free investment account program, introduced in 2014 to encourage households to move savings from low-yield bank accounts into capital markets. Like a Roth IRA in the United States or an ISA in the United Kingdom, investments held within a NISA account generate capital gains and dividends that are entirely exempt from Japanese taxation — for as long as the account remains open.

The program has undergone several expansions since its launch, with the current framework — sometimes called “新版NISA” (New NISA) — in place since 2024, featuring significantly expanded contribution limits.

The Two NISA Account Types

NISA consists of two complementary account types, each with distinct characteristics:

Tsumitate NISA (积累型 NISA)

Designed for passive, regular investors. Allows up to ¥800/month (¥9,600/year) in approved index funds and ETFs. The tax-free holding period is 5 years per batch, with the account itself renewable indefinitely.

Eligible investments include Japan-listed ETFs tracking the Nikkei 225, TOPIX, MSCI Japan, MSCI ACWI, and S&P 500 (yen-hedged versions preferred to reduce forex risk).

Growth Investment枠 (了一般投資枠, “Kurosu”)

Introduced in January 2024 as part of the New NISA framework. Allows up to ¥2.4 million per year in individual stocks, ETFs, REITs, and publicly offered investment trusts. There is no specific holding period — gains remain tax-free as long as holdings remain in the account.

This window is designed for investors who want to pick individual Japanese or global stocks within their NISA account.

Annual Contribution Limits (2026 Framework)

• Tsumitate NISA: ¥800/month × 12 = ¥9,600/year maximum
• Growth Investment枠: ¥2.4M/year maximum
• Combined annual maximum: ¥2.4096M (when fully utilizing both accounts)
• Lifetime allowance: ¥3.8M across the Growth Investment枠

The Tax Advantage: Why NISA Changes Everything

In a standard Japanese taxable brokerage account, both capital gains and dividends are taxed at 20.315% (including reconstruction surtax). For an investor earning 7% annually on a ¥2 million portfolio, this tax drag costs roughly ¥28,000-40,000 per year in foregone returns — compounding significantly over decades.

Inside a NISA account, those same returns are completely tax-free. The 20.315% savings compounds automatically, year after year, with no additional effort required from the investor.

Who Is Eligible?

• Japanese residents aged 18+ with a valid residence card (if a foreign national)
• Those with a Japanese tax identification number (My Number card or notification card)
• Account holders (as of 2026): approximately 22 million NISA accounts nationwide

How to Get Started

1. Choose a broker: SBI Securities, Rakuten Securities, Monex, au Kabucom Securities, and SMBC Nikko all offer NISA accounts with different fee structures and product offerings.
2. Open a NISA-eligible securities account: Complete the NISA application as part of the account opening process (most brokers allow fully online applications).
3. Transfer funds: Link your Japanese bank account and transfer up to your annual limit.
4. Select investments: Choose from approved index funds, ETFs, individual stocks, or REITs within your account type.

Is NISA Worth It?

For anyone planning to hold Japanese or global equities for more than 3-5 years, NISA is almost universally beneficial. The tax drag even at modest returns meaningfully compounds over time. Maximizing your NISA allowance each year should be a priority before contributing to taxable accounts.

This article is for informational purposes only and does not constitute investment advice. Tax rules and contribution limits are subject to change. Consult a licensed financial advisor or tax professional before making investment decisions.