handled end to end. In English.
Income over JPY 20 million, RSUs from an overseas parent, foreign tax credits, mid-year arrival or departure — a licensed Japanese tax accountant (zeirishi) with Big 4 experience prepares and files your return, working with you directly in English.
You talk to the person who does the work. No hand-offs.
Year-end adjustment does not settle everything.
Your employer's nenmatsu chosei (year-end adjustment) closes most people's tax year. It cannot close yours if any of the following applies. In these cases you file your own income tax return in Japan.
Above this level, year-end adjustment does not apply at all. You file a return regardless of anything else.
RSUs, ESPP, and stock options granted by a foreign parent company are generally paid outside Japan with no Japanese withholding, so payroll never settles them.
Only one employer can perform your year-end adjustment. The remaining income is settled through your own return.
If you are a non-permanent resident and remitted funds to Japan in a year you had foreign-source income, remittance taxation can bring that income into scope.
Departure-year filing, quasi-final returns, and appointing a tax agent (nozei kanrinin) so you can file on the normal timeline after leaving.
Foreign tax credits, and tax withheld on salary or retirement payments made after you left Japan, are often recoverable through a refund return.
How it works.
| Step | What you do | |
|---|---|---|
| 1 | Tell us about your employer, your equity compensation, your arrival date | One e-mail |
| 2 | We confirm your filing category (A / B / C), give you a quote, then engage with you directly | Nothing |
| 3 | We send you a document checklist in English, then collect what is needed | Send documents |
| 4 | We set up your e-Tax account — including if you have no My Number card | Nothing |
| 5 | We prepare your return, then e-file it | Nothing |
| 6 | We explain how to pay, or when your refund arrives, in English | Nothing |
| 7 | A short briefing on what to plan for next year | Nothing |
What we will ask you for.
Four items for everyone. The rest only if they apply to you. A My Number card is not required — we set up the e-Tax account for you.
- Residence card or passport
- My Number (the card itself is not required)
- Withholding slip (gensen choshu hyo) from your employer
- Japanese bank account for any refund
- Side business, self-employment, or rental income records
- Annual transaction report from a Japanese brokerage (including foreign shares)
- Dividend and interest statements
- Vesting and sale statements
- Grant agreement, grant date, and vesting schedule
- Proof of foreign income and tax paid (Notice of Assessment, etc.)
- Overseas assignment periods and workday records
- Remittance records, and your home-country filing status
- Life and earthquake insurance premium certificates
- Medical expense receipts, furusato nozei donation receipts
- Social insurance, iDeCo, and dependent details
Fees, by filing category.
- What is included
- Compiling employment income and preparing the return
- Applying deductions (medical expenses, donations, etc.)
- Electronic filing via e-Tax
- Direct correspondence with you in English
- Filed copy and payment or refund instructions
- Everything in Tier A, plus
- Resident / non-resident determination
- Foreign tax credit calculation
- Apportionment of salary for overseas workdays
- Everything in Tier B, plus
- Worldwide income where you also file in the US
- Coordination across multiple countries' tax systems
- Case-by-case tax treaty analysis
- Prior consultation with specialists
Equity compensation (RSU / ESPP / stock options) is quoted separately depending on the number of grants, vesting events, and sales. Filing requests made close to the deadline may carry an additional fee. Your actual category and fee are confirmed for your specific situation. Listed fees assume engagements of roughly ten or more employees; we do accept single individuals, and fees for smaller engagements are quoted individually.
Cross-border individual tax, in depth.
The licensed accountant who handles your case has a Big 4 background and works on these areas year-round — not as an occasional add-on to domestic practice.
- Resident, non-permanent resident, and non-resident determination
- Tax treaty application and the related filings
- Remittance taxation for non-permanent residents
- RSU, ESPP, stock options, employee stock purchase plans
- Grants from an overseas parent, with or without chargeback
- Vesting and sale timing across a move into or out of Japan
- Departure-year filing and quasi-final returns
- Tax agent (nozei kanrinin) appointment — we can act as your agent
- Exit tax (taxation on unrealised gains when leaving Japan)
- Residence tax after departure, and refund claims
Read more on the rules behind your case.
Detailed English guides to the areas that most often decide a foreign employee's Japanese tax position.
Questions we are actually asked.
Can a tax accountant file my Japanese tax return on my behalf?
I have already left Japan. Can I still claim a refund?
I don't have a My Number card. Is that a problem?
My company wants to pay the fee. Is that possible?
Do you handle the whole thing in English?
Where are you based? Do I need to visit an office?
▶ HR teams: the Japanese-language service page is here
General information as of 2026, not individual tax advice. Please contact us about your specific situation.