Tsumitate vs Growth Investment: Which NISA Type Should You Choose?
Last updated: February 2026
Japan's new NISA system gives you two investment quotas: Tsumitate (Accumulation) and Growth. Unlike the old system, which forced you to pick one or the other, the new NISA lets you use both simultaneously. That's the good news. The slightly complicated news is that figuring out how to split your money between them — or whether to use one exclusively — depends heavily on your specific situation as a foreign resident.
Your time horizon in Japan, your nationality, your available capital, and your investment experience all change the calculus. A US citizen faces fundamentally different constraints than a European or Asian national. Someone planning to stay ten years has different priorities than someone who might leave in three.
This article breaks down exactly how the two quotas differ, then walks through practical strategies for different foreign resident scenarios.
→ Related: NISA Explained: Japan's Tax-Free Investment Account for Foreign Residents — for the full overview of how NISA works.
Disclaimer: This article is for informational purposes only and does not constitute investment or financial advice. Please consult a qualified professional for guidance specific to your situation.
The Two Quotas: Side by Side
Tsumitate (Accumulation) Quota
The Tsumitate quota is designed for steady, long-term wealth building through regular contributions to pre-approved, low-cost funds.
Annual limit: ¥1.2 million per year.
Eligible products: Only investment trusts (and a small number of ETFs) that meet the Financial Services Agency's (FSA) criteria. These must have expense ratios below specified thresholds, charge no purchase fees (no-load), and have trust periods of 20 years or more (or unlimited). At SBI Securities, around 280 funds qualify — the vast majority are index funds tracking broad market benchmarks.
Investment method: Regular automatic purchases only. You set up recurring buys (monthly, weekly, or daily depending on your brokerage) and the system executes them automatically. True lump-sum investing is not available in this quota, though some brokerages allow "bonus month" top-ups that let you front-load somewhat.
Growth Investment Quota
The Growth quota offers more freedom — wider product selection, larger limits, and the ability to invest on your own terms.
Annual limit: ¥2.4 million per year.
Eligible products: Listed stocks (domestic and foreign), ETFs, REITs, and a broad range of investment trusts. Excluded are: stocks on watchlist or delisting track (整理・監理銘柄), trusts with terms under 20 years, monthly distribution funds, and leveraged/inverse products.
Investment method: Both lump-sum and regular purchases are allowed. You can buy whenever you want, in whatever amount you want, up to the annual cap. You can also set up automatic purchases through the Growth quota if you prefer.
Important: You can buy Tsumitate-eligible funds in the Growth quota too. There's no rule requiring different products in each quota.
The Lifetime Cap
The combined lifetime tax-free limit is ¥18 million. Of this, up to ¥12 million can come from the Growth quota. The Tsumitate quota has no sub-limit, meaning you can fill the entire ¥18 million through Tsumitate alone. But if you only use the Growth quota, you cap out at ¥12 million.
In practice, this means the "last" ¥6 million of your lifetime limit must come through the Tsumitate quota, regardless of your preferences.
Pros and Cons for Foreign Residents
Why Tsumitate Works Well
Simplicity: The FSA has already filtered out high-cost, poorly designed funds. You're choosing from a curated list of quality options. For someone investing in a language that isn't their first, fewer choices can be an advantage.
Automation: Set it up once and it runs itself. No decisions to make each month, no temptation to time the market. This is especially valuable if you're busy settling into life in Japan or if navigating a Japanese-language brokerage interface is daunting.
Built-in discipline: Dollar-cost averaging (or yen-cost averaging) happens automatically. You buy more units when prices are low and fewer when prices are high. Over long periods, this tends to smooth out volatility.
Where Tsumitate Falls Short
No individual stocks or REITs: If you want to own specific Japanese companies or invest in Japanese real estate through REITs, you need the Growth quota.
No lump-sum investing: If you arrive in Japan with savings you want to deploy immediately, you can't pour it all into the Tsumitate quota at once.
All funds are Japan-domiciled: Every product in the Tsumitate lineup is a Japanese investment trust. For most nationalities, this is irrelevant. For US citizens, it creates a serious tax problem (see below).
Why Growth Adds Value
Flexibility: Buy what you want, when you want. Individual stocks, foreign ETFs, REITs — the Growth quota is where personal investment strategy comes alive.
Lump-sum capability: Got a bonus? Received a transfer from overseas? The Growth quota lets you deploy capital immediately rather than dripping it in over months.
Access to foreign securities: Depending on your brokerage, you can purchase US-listed ETFs or stocks directly in the Growth quota. This is critical for US citizens avoiding PFIC issues.
Where Growth Demands More
Requires more knowledge: With freedom comes responsibility. Picking individual stocks or timing entry points requires investment experience that not everyone has.
Lifetime cap of ¥12 million: You cannot fill your entire ¥18 million lifetime limit through Growth alone. At least ¥6 million must come from Tsumitate.
Strategies by Situation
Long-Term Residents (5+ Years in Japan)
Recommended approach: Lead with Tsumitate, add Growth as budget allows.
If you plan to stay in Japan for the foreseeable future, the Tsumitate quota is your workhorse. Set up monthly contributions to a global index fund like eMAXIS Slim All Country, and let compound growth do the work. At ¥100,000 per month, you'll invest ¥1.2 million per year and fill your ¥18 million lifetime limit in 15 years through Tsumitate alone.
If you have additional capital, use the Growth quota for the same fund (perfectly fine to double up) or diversify into individual stocks, REITs, or sector-specific ETFs. The maximum speed approach — ¥1.2 million Tsumitate plus ¥2.4 million Growth per year — fills the entire ¥18 million in just 5 years.
Uncertain Timeline (3–5 Years, Might Leave)
Recommended approach: Tsumitate-focused, with attention to liquidity.
When you don't know when you'll leave Japan, keeping things simple and liquid is key. Monthly index fund contributions through Tsumitate give you broad market exposure that you can sell at any time. Avoid illiquid or highly concentrated positions in the Growth quota.
Remember: when you leave Japan, your NISA account is typically closed and holdings move to a taxable account. Unrealized gains aren't taxed at transfer, but they will be taxed when you eventually sell. A diversified index fund is easier to manage through this transition than a portfolio of individual Japanese stocks.
→ Related: Leaving Japan? What Happens to Your NISA Account
US Citizens and Green Card Holders
Recommended approach: Growth quota only. Do not use Tsumitate.
This isn't a preference — it's a constraint. Under US tax law, all Japanese investment trusts are classified as PFICs (Passive Foreign Investment Companies), subject to punitive taxation. Since every product eligible for the Tsumitate quota is a Japan-domiciled trust, using Tsumitate means paying steep US taxes that can far exceed ordinary rates — even though Japan exempts the gains.
The solution: use only the Growth quota, investing in US-domiciled ETFs through Interactive Brokers Japan (IBSJ, launching NISA in July 2025). ETFs like Vanguard Total World Stock (VT) or Vanguard S&P 500 (VOO) give you the same broad market exposure without PFIC complications.
Your effective lifetime limit drops to ¥12 million instead of ¥18 million (since you can't use Tsumitate), and your annual cap is ¥2.4 million instead of ¥3.6 million. That's a real limitation, but it's far better than the alternative of paying punitive PFIC taxes.
→ Related: NISA Tax Guide: Do You Owe Taxes in Your Home Country?
Investors with a Lump Sum to Deploy
Recommended approach: Growth for immediate deployment, Tsumitate for ongoing contributions.
If you've arrived in Japan with significant savings, or you've received a bonus, inheritance, or overseas transfer, the Growth quota lets you put that money to work immediately. You can invest up to ¥2.4 million per year in a single transaction if you choose.
A practical approach: set up ¥100,000/month in Tsumitate for the steady base, then deploy your lump sum through Growth. For someone with ¥5 million to invest, this might look like ¥1.2M Tsumitate + ¥2.4M Growth in Year 1 (totaling ¥3.6M), then ¥1.2M Tsumitate + ¥1.4M Growth in Year 2 (totaling ¥2.6M). Within two years, you've invested ¥6.2 million tax-free.
Statistically, lump-sum investing outperforms dollar-cost averaging roughly two-thirds of the time over long periods, because markets trend upward. But it also means larger short-term losses when markets dip. Match your approach to your risk tolerance.
Complete Beginners Starting Small
Recommended approach: Tsumitate only, small amounts.
Start with ¥10,000 to ¥50,000 per month in a single global index fund through the Tsumitate quota. That's it. One fund, one automatic monthly purchase, complete global diversification.
This approach requires minimal Japanese language ability (the initial setup is the hard part — once it's running, it's truly hands-off), minimal investment knowledge, and minimal capital. You can always increase amounts or add Growth quota investments later as you become more comfortable.
Sample Allocations
Profile A: European software engineer, ¥450K monthly salary, long-term stay Tsumitate: ¥50,000/month (eMAXIS Slim All Country) = ¥600,000/year Growth: ¥300,000 twice yearly, lump sum (same fund) = ¥600,000/year Total: ¥1,200,000/year → ¥18M lifetime limit reached in 15 years
Profile B: American teacher, ¥300K monthly salary, 3–5 year stay Tsumitate: Not used (PFIC issue) Growth: ¥100,000/month via IBSJ in VT = ¥1,200,000/year Total: ¥1,200,000/year → ¥6M invested over 5 years
Profile C: Finance professional with ¥8M in savings, planning permanent residence Tsumitate: ¥100,000/month (eMAXIS Slim S&P 500) = ¥1,200,000/year Growth: ¥2,400,000/year, lump sum (eMAXIS Slim All Country) Total: ¥3,600,000/year → ¥18M lifetime limit reached in 5 years
Common Misconceptions
"I need to buy different products in each quota." No. Buying the same index fund in both Tsumitate and Growth is perfectly valid and extremely common. Think of the two quotas as two buckets that can hold the same contents — the distinction is about limits and rules, not about requiring different investments.
"Growth means aggressive investing." The name is misleading. You can use the Growth quota to buy the exact same conservative index fund you'd buy in Tsumitate. The "growth" label reflects the wider product range, not a requirement for higher risk.
"I should max out both quotas every year." Only if your budget allows it without strain. Investing ¥3.6 million per year requires a high income by any standard. It's perfectly fine to use ¥30,000/month in Tsumitate and nothing else. The tax-free benefit applies to whatever amount you invest — there's no penalty for leaving quota unused.
"Unused annual quota carries over to next year." It does not. If you invest ¥500,000 in your Tsumitate quota this year, the remaining ¥700,000 is gone — it doesn't add to next year's ¥1.2 million. However, the ¥18 million lifetime limit works differently: it's always available to fill at whatever pace you choose.
The Bottom Line
For most foreign residents, the decision isn't really "Tsumitate or Growth" — it's "Tsumitate plus Growth, in what proportions?" The two quotas complement each other. Tsumitate handles the disciplined, automated, low-cost core of your portfolio. Growth provides the flexibility for lump sums, individual stocks, foreign ETFs, or simply more of the same index fund.
The one hard constraint: US citizens should avoid Tsumitate entirely due to PFIC rules, using Growth with US-domiciled ETFs instead.
Beyond that, the best strategy is the one you'll actually follow. A simple ¥30,000/month Tsumitate contribution that you maintain for ten years will build more wealth than an elaborate dual-quota plan that you abandon after six months. Start simple, stay consistent, and adjust as your situation evolves.
→ Related: Best Investment Funds for NISA: A Foreigner's Guide | How to Open a NISA Account as a Foreigner in Japan: Step-by-Step
This article is for general informational purposes only and does not constitute investment, financial, or tax advice. Please consult a qualified professional for guidance tailored to your individual circumstances.