- July 27, 2026
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Have you lived in Japan for a few years, yet still feel unsure how to manage your personal finances here—as if you never quite see the full picture of your money? Personal finance works differently in Japan from what you may be used to back home. Payslips, taxes, and social insurance all follow their own rules, and the banks, apps, and household-budgeting services available to you differ too. As a result, it’s easy to reach a point where the money side of life in Japan simply isn’t under control the way you’d like.
In this article, Certified Financial Planner (CFP®) Lili Katoh walks through how foreign residents in Japan can think about their personal finances—what to consider, and in what order.
About the Supervisor & Writer
Lili Katoh
Certified Financial Planner®
Founder of Money Step Office Inc.
Lili Katoh specializes in insurance, life planning, and asset management. She is a Health Management Expert Advisor and author of “Setai Nenshū 1000 Man En” and “Gattsuri Tamaru Chokin Recipe”. Born in California, USA, she brings international insight to Japanese financial planning.
Table of Contents
Chapter 1: What Is Personal Finance?
“Managing your money” sounds simple, but in practice it covers a wide range of tasks and decisions. Alongside day-to-day money management, it also involves public systems such as taxes and social insurance, as well as the financial programs offered by your employer. And it isn’t only about handling the household budget from month to month—you’ll also want a medium- to long-term strategy that accounts for insurance and investments over the course of your stay.
Thinking about all of these money matters together, and managing them with a clear strategy, is what personal finance means.
It helps to approach it from the following angles:
- STEP 1 — Spend: Manage your everyday living expenses
- STEP 2 — Understand: Learn how taxes and social insurance work
- STEP 3 — Prepare: Plan for illness, unemployment, education, and retirement
- STEP 4 — Connect:
- 4-1 Set up how you manage and transfer assets between Japan and your home country
- 4-2 Think through plans for your family and your future
- STEP 5 — Grow: Build your assets through saving and investing
It also helps to match your financial plan to how long you expect to stay in Japan:
- Short term (within 1 year): Maintaining and managing everyday life
- Medium term (3–10 years): Lifestyle and life events such as housing, education, changing jobs, or returning home
- Long term (10 years or more): Longer-range life plans such as retirement, permanent residency, and inheritance
Chapter 2: STEP 1 — Spend: Manage Your Everyday Living Expenses
When it comes to financial planning, the best place to start is with the money tied directly to daily life. The following items form the foundation for keeping everyday life stable.
Know your income
Start by working out how much income you actually have. If you’re an employee, your payslip is the starting point. Check your take-home pay so you know how much you really receive each month.
If you have more than one source of income—or income from outside Japan as well—try to estimate what they add up to together. Money coming from abroad will vary in yen terms as exchange rates move. Check the amount in the local currency first, and if you can, review your household finances on a regular schedule, such as monthly. Each time, convert using the exchange rate and record the total in a single currency, such as Japanese yen.
Know your spending
Next, get a clear view of what life in Japan currently costs you. Spending falls broadly into two types: fixed costs and variable costs.
Common fixed costs:
- Rent or mortgage payments
- Phone and internet
- Insurance premiums
- Subscriptions
- Tuition
- Childcare fees
- Remittances to your home country, and so on
Common variable costs:
- Groceries
- Utilities
- Transport
- Medical expenses
- Entertainment
- Trips home and travel
- Fees on overseas transfers, and losses from exchange-rate movements
- Administrative costs such as renewing your residence status, and so on
Much of this money moves not only as cash in and out, but also through direct debits from your bank account, transfers, credit cards, and smartphone payments. Gather as much information as you can from the services you use—bankbook or online-banking transaction records, credit card statements, and smartphone payment histories. There are also household-budgeting tools and apps that can pull all of this data together and manage it in one place.
Chapter 3: STEP 2 — Understand: Learn How Taxes and Social Insurance Work
Next, get to grips with how money works in Japan. This ties directly into managing your day-to-day spending as well.
Understand how taxes work
In Japan, alongside the consumption tax you pay when you shop, there is income tax on what you earn and resident tax based on where you live. Some of these are deducted from your salary each month, while others require an annual filing—so they come up regularly in daily life, and it’s worth understanding how they work.
This applies to company employees. Your employer calculates the income tax due on your salary for the year, then files and pays it on your behalf. If you’ve paid too much or too little tax, the difference is settled in your year-end pay. The results are issued to you as a gensen chōshūhyō, Japan’s official withholding tax statement.
This applies to the self-employed, homemakers, and others. It’s the procedure for declaring your own income and deductions for the year, determining your income tax, and settling the amount.
"Resident" or a "Non-resident"
In Japan’s tax system, the distinction between a “resident” and a “non-resident” affects how you’re taxed—and these terms are defined differently from your residence status or nationality. Under the Income Tax Act, a “resident” is, as a rule, someone who has a domicile in Japan, or who has had a place of residence in Japan continuously for one year or more. Residents (other than non-permanent residents) are, in principle, taxed in Japan on all of their income, whether it arises inside or outside Japan.
Where a tax treaty exists between Japan and your home country, it sets out rules to prevent double taxation: which country treats you as a resident, which country may tax a given type of income, and whether the tax rate can be reduced or exempted. What applies varies by country and by type of income, and a formal notification may be required.
Because resident status and the scope of taxation on foreign income depend on factors such as length of stay, where your main base of living is, nationality, remittances, and tax treaties, you should confirm your own situation with the tax office or a tax accountant.
Source: National Tax Agency, “Classification of Residents and Non-Residents”
Understand the social insurance system
Once you meet the required conditions, you’ll be enrolled in Japan’s public health insurance and pension systems.
- Public health insurance
These systems ease the financial burden of medical costs, time off work, childbirth, and more. Company employees and their dependents are mainly covered by “Health Insurance”; the self-employed, freelancers, and retirees join “National Health Insurance”; and people aged 75 and over join the “Medical Care System for the Elderly Aged 75 and Over.”
- Employment insurance
A public insurance scheme for people working as employees, part-timers, and the like. It provides benefits when you lose your job, or while you’re on leave for childcare or family care.
- Workers’ accident compensation insurance
A public insurance scheme for people working as employees, part-timers, and the like. It provides benefits for injury, illness, disability, or death arising from work or your commute.
- Public pension
The basic public pension system that provides for old age, disability, and death. Within it, people living in Japan who are, as a rule, aged 20 to under 60 join the “National Pension (国民年金 / Kokumin Nenkin),” while company employees and part-timers or other workers meeting certain conditions join the “Employees’ Pension Insurance (厚生年金 / Kousei Nenkin).”
If you reach old age in Japan and have a history of pension enrollment in a country other than Japan, and that country is covered by a social security agreement, your enrollment periods may be combined to determine your eligibility, and you may be able to receive a pension from each country in line with your enrollment record.
On the other hand, if you leave Japan before receiving a pension, you may be able to claim a lump-sum withdrawal payment after returning home if you meet the requirements—for example, if you do not hold Japanese nationality, or have not met the qualifying period for Japan’s old-age pension.
Chapter 4: STEP 3 — Prepare: Prepare for Illness, Job Loss, and a Sudden Return Home
As described above, Japan has public systems that act as a safety net for illness, unemployment, old age, and more. But for unexpected risks in daily life, you also need to make your own provisions.
Set aside emergency funds
Keep money on hand for times when you suddenly need it—such as a sudden illness, job loss, or return home. As a general rule, it’s reassuring to always hold the equivalent of six months’ to a year’s worth of living expenses. Keep it in a form you can withdraw right away, such as cash or an ordinary deposit account.
Check your private insurance
If you have private insurance that covers illness or injury, check whether you can use it in Japan. If you can, it’s also important to know whether you can file claims for insurance payouts or benefits from Japan and receive them.
Depending on your employer, you may also be able to receive support toward medical costs in Japan through employee benefit programs.
If you want to strengthen your coverage further, you may be able to take out life insurance or medical insurance with a Japanese insurance company. Some insurers ask about permanent residency or Japanese language ability, so check their requirements.
Chapter5: STEP 4 — Connect
Connecting Japan and Your Home Country
While you’re living in Japan, if you have family or relatives in your home country or elsewhere, or assets outside Japan, you may need to send money for living costs or family support, or have money sent to you from home. It’s therefore important to set up a way to send and receive money. Not every financial institution or branch offers this, however. Whether it’s possible at all—along with fees, limits, and required documents—varies depending on whether you use the counter or online banking, and on the destination country and currency, so check the official website or a branch before you use it.
Also, if you support a family member living outside Japan, you’ll need documents proving your family relationship and the fact of your remittances in order to claim that family member under Japan’s dependent deduction at tax-filing time. Note, however, that a dependent for tax purposes and a dependent under health insurance are separate systems. Under health insurance, as a rule only people with an address in Japan can be registered as dependents, so take care here.
Connecting to Life Events
Buying a home
When buying a home in Japan, you’ll usually take out a mortgage. When a foreign national takes out a mortgage, questions arise about residence status, period of stay, and work and residence history in Japan, and the required documents can be more numerous.
At the time of purchase, on top of the property price, there are also registration costs, mortgage fees, taxes (real estate acquisition tax), insurance premiums, moving costs, and more. Prepare your home-buying funds in a planned way, including these costs. If there’s a chance you’ll return home in the future, think through an exit strategy too—whether to sell, or to keep the property and rent it out.
Education costs
If you’re raising children in Japan, it’s important to form a view of your children’s path and to plan education costs accordingly. Japan has public, national, and private schools, as well as international schools, and education costs vary greatly by path. Public elementary and junior high schools charge no tuition, so going to a private or international school generally costs more.
Taking into account your family’s life plan and your children’s nationality and language environment, consider whether they’ll live in Japan until adulthood, move to your home country or a third country for high school or university, or study abroad—and map out their path accordingly.
Chapter6: STEP 5 — Grow
Whether you live in Japan or in another country, building assets through saving and investing—with a long-term view of the future—is important for a rich life.
Set your savings goals
Money to keep available right away, within one year
- Purpose: everyday living costs, emergency funds, costs of trips home, and so on
- Method: cash, ordinary deposits, and so on
Money to use within 3 to 10 years
- Purpose: buying a home, education costs, costs of returning home, and so on
- Method: fixed-term deposits, employee asset-building savings, educational endowment insurance, bonds, and so on
Money to use more than 10 years in the future
- Purpose: retirement funds, and so on
- Method: stocks, investment trusts, and so on
The above are general examples. However, the financial products, currencies, and investment methods that suit you differ depending on the specifics of your purpose, your risk tolerance, the possibility of returning home or relocating, the assets you hold, your country of residence, and the tax systems of the countries involved. Consider the direction of your investments while also thinking about whether you’ll keep living in Japan, return to your home country, or move back and forth between Japan and your home country.
Also, when you start investing in Japan for the first time, factors such as whether you can open an account at a financial institution in Japan, and whether you can easily withdraw assets or maintain or close the account when you return home, are important too.
Make use of tax savings through NISA, iDeCo, furusato nozei, and more
To build assets efficiently, keeping down costs such as taxes and fees is also important. Japan has systems such as the following.
NISA
A system under which profits from stocks and investment trusts are tax-free, up to a set investment amount.
iDeCo
One of the private pension systems for preparing retirement funds. In addition to profits from investment trusts and the like being tax-free, you also receive a tax reduction according to the amount you contribute.
Furusato nozei
A system under which donating to a local government reduces your income tax and resident tax for that year.
Chapter7: Personal Finance Level Checklist
As you can see, money-related challenges span a wide range—household finances, taxes, insurance, investments, housing, education, retirement, and more. And these aren’t separate challenges; they’re all connected across your life. Rather than thinking about them individually, making a plan while looking at the whole picture is the first step toward living in Japan with peace of mind.
For example, if you have questions like the ones below, you may have no trouble in daily life. But from a personal finance perspective, that isn’t necessarily enough.
- I keep a household budget, but I don’t know how much I’ll need in the future
- I have savings, but I don’t know how to balance them with investing
- I want to start NISA, but I don’t know if it suits me
Running a self-check like the following will also help you clarify what challenges you face when it comes to life and money in Japan.
Personal Finance Level Checklist
STEP 1 — Spend (everyday living expenses)
- I know my monthly take-home income (after currency conversion)
- I can separate my living costs into “fixed costs” and “variable costs” on a monthly basis
- I know the balances of all my bank accounts, credit cards, and payment apps
- I’ve set a rule for how much I save each month (paying myself first)
STEP 2 — Understand (taxes and social insurance)
- I know whether I’m a “resident” or a “non-resident”
- I know whether I need a year-end adjustment or a final tax return
- I check the contents of my withholding tax statement (or tax return) every year
- I know which types of social insurance I’m enrolled in (Health Insurance, National Health Insurance, and so on)
- I know my enrollment period and expected future benefits under Japan’s pension system
STEP 3 — Prepare (risk management)
- I’ve secured “emergency funds” covering six months’ to a year’s worth of living costs
- I understand the coverage of both my home-country insurance and my Japanese insurance (public and private)
- I understand my employer’s benefit programs (medical support and the like)
STEP 4 — Connect (managing assets and the future)
- I’ve secured a route for sending money to my home country and know the fees
- I know the tax rules for claiming family members outside Japan as dependents
- I have a picture of my life plan according to my length of stay in Japan (short, medium, or long term)
- I’ve considered an “exit strategy” for housing and assets if I return home
STEP 5 — Grow (investing)
- I’ve clarified the purpose of my investments (retirement, buying a home, funds for returning home)
- I’ve checked the overview of NISA and iDeCo and whether they can apply to me
- I use a financial institution that allows account closure and asset transfer when I return home
A Message from belongingJAPAN
The following is an announcement from our editorial team, not part of the article above.
Do you need help building your personal finance plan?
As Lili Katoh explains in this article, personal finance in Japan rarely comes down to a single correct answer. The right approach depends on your income, your family, how long you plan to stay, and the countries you’re connected to.
That’s why, starting in August, belongingJAPAN is launching a new one-on-one service where you can plan your financial future together with a Certified Financial Planner (CFP®). In a private session, you can talk through your own situation—your household budget, taxes, insurance, pension, and investments—and get guidance tailored to your life in Japan.
Whether you’re just getting your finances in order or want a professional to review a plan you already have, we’re here to help you see the full picture with confidence.
See the details and book your session below.
*This article is supervised by Certified Financial Planner Lili Katoh (Money Step Office Inc.) and covers personal finance for foreign residents in Japan, including household budgeting, taxes, social insurance, risk management, and investing. For advice on how these topics apply to your specific income, deductions, or tax filing situation, please consult a qualified tax accountant (税理士) or contact your local tax office directly.
This article is provided for general informational purposes only and does not constitute individual financial, tax, or legal advice. While reviewed by a Certified Financial Planner, readers are encouraged to consult their own advisors before making decisions. Information including tax rules, social insurance and pension systems, deduction limits, and regulations is accurate as of July 2026 but may change; please verify details with official sources such as the National Tax Agency, the Japan Pension Service, and your local municipality.
