Zeirishi: Tax Accountants in Japan
The 税理士 (zeirishi, "licensed tax accountant") is the professional behind every serious tax file in Japan. Returns, bookkeeping, disputes with the tax office, and planning all sit in this one licensed practice, and the engagement decision turns on complexity rather than income alone (limitation: NTA system page confirmation pending).
Procedures, fees, and requirements can change. Confirm current details with the National Tax Agency pages and the practitioner you retain. This article is general information, not tax advice; for your specific filing position, consult a licensed zeirishi. It gives no cross-border filing instructions beyond access.
Overview
Zeirishi prepare income, corporate, and consumption-tax returns, represent taxpayers in disputes, plan positions within the law, and supervise the bookkeeping that decides return prices. Businesses of any size and individuals with layered income are the standard clients (limitation: practitioner-described scope).
This article stays tax-procedure: when engagement pays, what retainer bands look like, and how to find a bilingual practice. Filing positions for specific cases belong in a consultation, not on this page (limitation: practitioner-described scope).
What a zeirishi handles
Return preparation spans the 確定申告 (kakutei-shinkoku, "final income-tax return") for individuals through corporate and consumption-tax returns for entities. Bookkeeping supervision keeps monthly records audit-ready so the annual return prices cleanly (limitation: practitioner-described scope).
Dispute work covers corrections, appeals, and negotiation with the tax office. Planning work structures future transactions, entity choices, and timing within the rules. Each function bills under the same engagement letter (limitation: practitioner-described scope).
Clean monthly records compress annual-return work; tangled records expand it. The retainer band below assumes records exist (limitation: practitioner consensus).
Who needs one and who does not
Engagement pays for any meaningful business, any cross-jurisdiction income, any inheritance from abroad, and any major foreign-asset holdings. Each of these adds positions a generalist cannot safely price (limitation: practitioner routing guidance).
Salaried-only employees with no side income typically need no zeirishi. The employer-run 年末調整 (nenmatsu-chōsei, "year-end adjustment") settles salary-only cases at the company, leaving nothing to file (limitation: NTA confirmation pending).
Typical retainer and return bands
Bands below are practitioner-reported ranges for budgeting, not quotes (as of 2026-05; confirm current figures with the firm you retain). Bookkeeping volume decides where inside each band a client lands.
| Client | Monthly retainer | Annual return | As of | Notes |
|---|---|---|---|---|
| Individual sole proprietor | 20,000–50,000 yen | 100,000–300,000 yen | 2026-05 | Volume decides |
| Corporate entity | 30,000–80,000 yen | 200,000–1,000,000+ yen by size | 2026-05 | Size and complexity decide |
Corporate clients land toward the top of the table by size and complexity. Sole proprietors registering for the first time should confirm whether the quote assumes blue-form or white-form filing. Confirm before retaining that the written estimate separates monthly from annual pricing and states how out-of-pocket filing costs are handled. Per-firm fee setting with no standard retail price is the norm across licensed professions.12
Finding a bilingual zeirishi
Tokyo and major-city networks include established bilingual practices, and cross-border specialists serve country-pair niches alongside larger firms with bilingual departments. Office pages usually state language coverage and specialty pairs directly (limitation: no single directory fetched).
Interview for fit: country-pair experience matching your positions, who prepares versus who reviews, and how questions during the year are billed. A generalist practice at a lower retainer costs more than a specialist once a cross-border position goes wrong (limitation: practitioner routing guidance).
Good to know
Year-end adjustment already covers most salaried workers
Adjustment settles employer-paid salary including standard deductions. Side income, business income, and foreign positions fall outside it and follow the final-return track (limitation: NTA confirmation pending).
Monthly bookkeeping decides the annual-return price
Practitioners price returns off record quality. Regular bookkeeping, whether in-house or outsourced, is the lever that holds the annual fee inside the band (limitation: practitioner consensus).
Cross-jurisdiction income needs a specialist, not a generalist
Treaty positions and foreign-asset reporting exceed domestic generalist scope. Match the specialty to the positions before comparing retainers (limitation: practitioner routing guidance).
See also
- Blue-Form vs. White-Form Tax Returns
- Registering as a Sole Proprietor (Kojin Jigyounushi)
- Corporate Accounting and Tax Filing
- Hiring a Cross-Border Tax Advisor
- Client-Side Withholding (Gensen Choshu)
- When to DIY vs. Engage a Professional in Japan