Ultimate Japan Finance Guide for Expats – Banking, Taxes, Investing
New to Japan or leveling up your money game? This guide walks you through opening a bank account, moving money, deposit protection, tax residency and deadlines, resident tax, pensions, and smart investing with New NISA and iDeCo—clear, current, and action-ready.
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Money and banking in Japan for newcomers
Japan’s banking system is stable, well regulated, and increasingly friendly to foreign residents. The Financial Services Agency (FSA) publishes step-by-step guidance on opening an account and sending money, with an updated English pamphlet as of April 2025.
Opening a bank account as a foreign resident
Most banks will ask for:
- Passport
- Residence Card (在留カード)
- Proof of address in Japan (e.g., residence certificate/jūminhyō or a recent utility bill)
- Contact phone number and, increasingly, your Individual Number (My Number) for compliance and reporting
- In some branches, a personal seal (inkan/hanko) or a signature
The FSA’s “Living in Japan: How to Open a Bank Account and Send Money” is the best official starting point; it consolidates requirements and consumer tips in one place.
Tip: Some banks now accept signatures instead of a hanko. Policy can vary by branch; bring both if you have them. For English-friendly onboarding and online banking, look at institutions that explicitly support foreign residents and provide English pages.
Will I need My Number?
For cross-border transfers and brokerage onboarding, banks and brokers typically require your My Number for tax reporting and anti-money-laundering procedures. SBI Shinsei Bank and Seven Bank both state My Number is needed for international transfer-related services.
Sending money in and out
Use your bank’s international transfer service or licensed remittance providers. The FSA pamphlet explains your choices, common fees, and how to avoid problems like account freezes if your visa status changes—make sure to tell your bank when you extend your stay.
Is my money insured?
Japan’s Deposit Insurance Corporation (DICJ) protects yen deposits up to 10 million yen per depositor per institution (plus interest). Foreign-currency deposits are not covered by deposit insurance, so keep that in mind when holding USD/EUR balances.
Quick bank-account checklist
| Step | What to bring | Why it matters |
|---|---|---|
| 1 | Passport + Residence Card | ID and residence status |
| 2 | Proof of address | Address verification |
| 3 | My Number | Transfers, brokerage, tax reporting |
| 4 | Hanko or signature | Branch-level requirement varies |
| 5 | Local phone number | 2-factor auth and contact |
| 6 | Initial deposit (if needed) | Some banks require a minimum |
Further reading in our site: Housing & Living Hub.
Taxes in Japan: what expats need to know
Japanese income taxation depends first on your status (resident vs non-resident) and then on the type and source of income. The National Tax Agency (NTA) maintains English pages with definitions, forms, and filing deadlines.
Tax residency categories (NTA definitions)
| Status | Who you are | What’s taxed in Japan |
|---|---|---|
| Non-resident | You don’t have an address (jūsho) or residence in Japan, or you’ve been here for a short time without establishing residence | Japan-source income |
| Resident | You have an address/residence in Japan | Worldwide income, with special rules for non-permanent residents (foreign nationals who have not had a domicile/residence in Japan for more than 5 years within the last 10 years) |
The NTA explains the resident vs non-resident distinction and the special treatment for non-permanent residents. If you’re unsure which you are, check the NTA page first.
National and local taxes at a glance
- National income tax is progressive (up to 45% at high incomes) and is usually withheld from salary. You or your employer will reconcile at year-end; self-employed file an annual return.
- Inhabitant (resident) tax is a local tax of about 10% of last year’s taxable income (roughly 6% municipal + 4% prefectural). Key point: you’re liable if you were a resident on January 1; bills are normally issued around June for payment in installments.
- Consumption tax (VAT) is 10% (8% reduced rate for some items). You’ll see this at the register; this matters more if you run a business (invoice system rules).
Related guides: Visa & Immigration Hub, Visa Application Timeline, Checking Your Japan Visa Status Online.
Key filing dates and “leaving Japan” steps
- Standard filing window for individual income tax returns is mid-February to mid-March (exact dates vary slightly each year).
- Leaving Japan? If you’ll lose residency but still have tax obligations, submit a Notification of Tax Agent before departure—then your filing/payment due date remains the usual March 15 of the following year. If you do not appoint a tax agent, you must file and pay before you leave.
Local tip: Municipalities also require a tax agent for resident tax if amounts remain after you leave. The Justice Ministry’s newcomer guide points this out; ask your ward office before your flight.
Tax calendar for individuals
| When | What to remember |
|---|---|
| Mid-Feb → Mid-Mar | Final return (kakutei shinkoku) filing window |
| June | Resident tax bills start (if not through payroll) |
| Before departure | File Tax Agent notification if you’ll still have Japan-source income or resident tax due |
Explore: Study & Work Hub, Re-Entry Permit in Japan, Visa Run to Korea.
Investing in Japan the smart way
Japan offers two excellent, tax-efficient pillars for long-term savers: New NISA (since 2024) and iDeCo (individual DC pension). Combine them with a regular taxable account if needed.
New NISA (since 2024)
The new NISA made three big improvements: it’s permanent, the tax-free holding period is indefinite, and limits are larger (annual and lifetime). Official overviews in English from the Japan Securities Dealers Association (JSDA) and FSA materials confirm the new framework.
At a glance:
- Annual limit: up to ¥3.6 million combined across two “quotas” (see below).
- Lifetime limit: ¥18 million tax-free contributions.
- Re-use rule: sell inside NISA and you can re-use room in later years.
- Two quotas:
- Tsumitate (accumulation) quota: up to ¥1.2 million/year (long-term index funds, etc.)
- Growth quota: up to ¥2.4 million/year (broader products, including listed stocks)
- Of the lifetime limit, up to ¥12 million can go into the Growth quota.
If you invest outside NISA, gains/dividends on listed equities are generally taxed at 20.315% combined (national + local).
Opening a NISA: Brokers will require ID, address, and My Number. Expect KYC and product-risk disclosures; English-language support varies by firm.
Related reads on our site: Choosing the Right Work Visa in Japan, Checking Your Japan Visa Status Online.
iDeCo (individual DC pension)
iDeCo is a voluntary, tax-deductible retirement account. Contributions reduce your taxable income now; investment growth is tax-free; withdrawals start from age 60 (rules apply). The official iDeCo site and English membership chart outline eligibility and monthly limits by employment status.
Common maxima (current framework; some categories updated in late 2024 and proposals for further increases have been floated in 2025—watch for enactment timelines):
- Self-employed: up to around ¥68,000/month
- Employees without a corporate DC: typically around ¥23,000/month
- Employees with corporate DC/DB: lower caps (often ¥12,000–¥20,000/month), depending on company plan design.
Reform watch: The government signaled proposals in 2025 to raise DC/iDeCo limits in coming years; monitor final legislation and effective dates before changing your plan.
Who should prioritize what?
- If you need pre-retirement access: NISA (flexible; no lock-in).
- If you want maximum tax deduction now and can lock funds: iDeCo.
- Many expats do both: iDeCo for income-tax relief, plus NISA for flexible long-term compounding.
NISA vs iDeCo vs taxable account
| Feature | New NISA | iDeCo | Taxable brokerage |
|---|---|---|---|
| Tax on gains/dividends | 0% inside NISA | 0% inside iDeCo | ~20.315% on listed stocks’ gains/dividends |
| Tax deduction on contributions | No | Yes (income-tax deductible) | No |
| Annual limit | ¥3.6M (1.2M tsumitate + 2.4M growth) | Category-based monthly caps | None |
| Lifetime limit | ¥18M (with ¥12M growth cap) | No lifetime cap; total is what you contribute | None |
| Access to funds | Anytime (no tax inside NISA; outside rules apply) | Locked until 60 (exceptions rare) | Anytime |
| Account requirements | My Number + resident status | Must be enrolled in Japan’s pension system | My Number + resident status |
Sources: JSDA/FSA on New NISA; NTA on capital gains; iDeCo official site.
US citizens & PFIC note: If you’re a US person, many Japan-domiciled mutual funds/ETFs can be PFICs, triggering complex US tax reporting and potentially punitive rates. Speak to a cross-border tax advisor; see IRS PFIC guidance.
More: Study & Work Hub, Visa & Immigration Hub.
Pensions and social insurance basics
Everyone aged 20–59 with an address in Japan must enroll in the public pension (National Pension or Employees’ Pension). For 2025, the national pension contribution is ¥17,510/month (for those in the National Pension category). Employees in companies usually have contributions withheld for Employees’ Pension.
Leaving Japan and pension lump-sum withdrawal
If you’re a non-Japanese who contributed for a short period and later leave the country, you may be eligible for a lump-sum withdrawal payment (partial refund) from the Japan Pension Service. Apply within two years of leaving.
Related: Re-Entry Permit in Japan, Visa & Immigration Hub, Inviting Family to Japan.
Paying resident tax and planning cash flow
Resident tax is often the surprise in your second year: it’s based on last year’s income, billed around June, and paid in four installments if not via payroll. If you move cities, liability is tied to where you lived on January 1.
Example: Earned income in 2024 → billed as resident tax June 2025–May 2026. Rate ≈ 10% total (municipal + prefectural), plus small per-capita amounts.
Capital markets and tax on investments
Outside NISA/iDeCo, capital gains and dividends on listed shares/ETFs are typically taxed at 20.315% total. Your broker withholds and reports for you (as “specified” accounts). Check your statements and annual tax forms.
Crypto note: As of late 2025, proposals are circulating about financial-product reforms and market rules; however, individual income tax treatment of crypto remains complex and subject to change. Confirm current rules before filing.
Practical steps for your first 90 days
- Open a bank account (bring ID, Residence Card, proof of address, phone, My Number). Use the FSA pamphlet as your reference.
- Register for pension/health insurance via your employer or city office. See Japan Pension Service for obligations and contributions.
- Set up NISA/iDeCo if you’re investing long-term. Expect My Number and KYC.
- Log key tax dates (February–March filing window; June resident-tax cycle).
- Plan transfers to/from Japan; supply My Number to avoid disruptions.
Bank types and what to expect
| Bank type | Pros | Cons | Best for |
|---|---|---|---|
| Megabanks (Mizuho, MUFG, SMBC) | Nationwide ATM network; payroll friendly | Branch procedures can be formal; fewer English interfaces | Salaried employees |
| Japan Post Bank (Yūcho) | Huge ATM reach; basic services | App UI can be basic; FX/remittance policies vary | Everyday transactions |
| Online banks (e.g., SBI Shinsei) | English pages; app-first; competitive FX/remittances | Support windows vary; some products Japanese-only | Digital natives, international transfers |
| Regional banks | Localized service | Limited English; fewer ATMs nationwide | Staying long-term in one prefecture |
Check each bank’s latest account-opening page for current ID requirements and English support.
Frequently asked questions
Do I need to be in Japan for 6 months before opening an account?
Not necessarily. Requirements vary by bank. The FSA guidance lays out the general process; some institutions open accounts for new residents immediately with proper documentation. Confirm at the branch or website.
Can I keep my account after leaving Japan?
Policies differ. If you’ll still have Japan-source income or resident tax after departure, appoint a tax agent and update your bank before you leave.
Is foreign currency safe in Japanese banks?
Operationally, yes—but deposit insurance only protects yen deposits (up to ¥10M + interest). FX deposits are outside the DICJ scheme.
How are investments taxed if I don’t use NISA/iDeCo?
Listed equities/ETFs face about 20.315% combined tax on dividends and realized gains. NISA/iDeCo eliminate that tax within their rules/limits.
Which should I do first—NISA or iDeCo?
If cash flexibility matters, start with NISA. If you want maximum income-tax deduction and can lock funds until 60, add iDeCo. Consider doing both if you can afford it.
Starter action plan (save this)
- Week 1: Open bank account; register pension/health insurance.
- Week 2: Map your tax residency and payroll situation; note deadlines.
- Week 3–4: Open NISA; set up a monthly tsumitate to reach your goals. Evaluate iDeCo if you can lock funds.
- Month 2–3: Plan international transfers with your bank/remitter; keep My Number details updated.
Helpful comparison table: new arrivals’ first-year money map
| Topic | Must-know |
|---|---|
| Account opening | ID, address, Residence Card, My Number often required; see FSA guide |
| Deposit protection | ¥10M per institution (yen deposits); FX deposits not covered |
| Resident tax | ≈10%, based on last year income; billed from June; liability if resident on Jan 1 |
| Return window | Mid-Feb → Mid-Mar; tax agent keeps usual deadlines when leaving |
| New NISA | ¥3.6M/year; ¥18M lifetime; growth quota cap ¥12M |
| iDeCo | Tax-deductible; contribution caps vary by job status |
| Listed gains tax | ~20.315% outside NISA/iDeCo |
| Pension basics | Mandatory for 20–59 with Japan address; 2025 Nat’l Pension ¥17,510/mo |
| Pension refund | Lump-sum withdrawal possible within 2 years of leaving |
Final tips for a smoother financial life
- Tell your bank when you extend or change your visa to avoid transaction limits. The FSA even published a multilingual note on this in 2025.
- Automate your NISA contributions (tsumitate) so you always use your annual room.
- If you might leave Japan, plan for resident tax and consider appointing a tax agent before departure.
- Keep documents (tax, pension, salary) for at least 5 years; you’ll need them for immigration procedures and future filings.
Explore related guides across our site:
Visa & Immigration Hub • Study & Work Hub • Health & Medical Hub • Housing & Living Hub • Short-Term Work Visa Guide • Re-Entry Permit in Japan • Visa Application Timeline • Inviting Family to Japan
This article is informational and not tax or investment advice. For personal advice, consult a licensed tax accountant or financial planner in Japan.
