Bookkeeping
Organize receipts, invoices and bank statements, reconcile transactions and prepare the books.
Tax, made clear.
Bookkeeping, closing and filing. Tax professionals and AI, working together.
FEATURED TAX PARTNER
YUIUNI×辻税理士事務所
Tax judgment and filing remain with the engaged tax accountantFrom¥150,000〜 / year, excl. tax
Plan eligibility depends on transactions, revenue, headcount and complexity
STANDARD¥240,000/year, from · excl. taxPLUS¥360,000/year, from · excl. tax
Chat on LINESee full pricing AIRAX | 財務・税務アシスタントAdd the official account, then send your inquiry in LINE. Use the web form →
Everyday books. Year-end confidence.
Clear scope, clear responsibility. AI supports the routine; qualified tax professionals own the judgment.
Closing & filing
Connect annual closing and core filings. The engaged tax accountant reviews and submits.
Business insight
Understand income, expenses and cash movement. STANDARD and PLUS include monthly reports and quarterly summaries.
Know your annual cost from the start.
Annual plans include bookkeeping, closing and core filing. See included work, add-ons and eligibility, in full.
LIGHT
¥150,000/year, from
100 transactions/month
Revenue below ¥50m; fewer than 10 staff
- Core bookkeeping, annual closing and filing
STANDARD
Recommended¥240,000/year, from
300 transactions/month
Revenue below ¥100m; fewer than 20 staff
- All LIGHT services
- Monthly reports and quarterly summaries
- 12 hours of human support per year
PLUS
¥360,000/year, from
500 transactions/month
Revenue below ¥300m; fewer than 20 staff
- All STANDARD services
- Department/project tracking and priority handling
- 18 hours of human support per year
All prices in JPY, excluding tax. Final fees and engagement scope are agreed in writing before signing.
The highest applicable criterion—transaction volume, revenue, headcount or complexity—determines the plan. More than 500 monthly transactions, multiple entities/locations, complex inventory or foreign-currency work require a custom quote.
Included in every annual plan
- Bookkeeping and balance updates
- Bank and source-document reconciliation
- Annual financial statements
- Corporate and local tax filings
- Consumption tax filing for taxable businesses
- Final tax-accountant review and e-Tax/eLTAX submission
Year-end payroll adjustment, statutory reports, payroll payment reports, depreciable-asset filings and interim returns depend on company circumstances. Prior-year cleanup, special issues, third-party costs and taxes are separate.
See all add-on and standalone fees
Add-ons
| Service | Fee / unit, excluding tax |
|---|---|
| Standalone bookkeeping | From ¥6,000 / ¥12,000 / ¥18,000 per month |
| Corporate closing + filing | From ¥80,000 per engagement |
| Consumption tax filing | From ¥30,000 per return |
| Year-end payroll adjustment + statutory reports | ¥10,000 + ¥1,000 per person |
| Payroll | ¥5,000/month + ¥500 per person/month |
| Monthly management reports | From ¥15,000/month |
| Additional human support | ¥15,000/hour |
| Tax audit attendance / amended returns | From ¥50,000/day; from ¥50,000 per tax type/year |
Work already included in the annual engagement is not billed twice. Any surcharge for non-retainer clients, extended or complex work is disclosed in advance.
AI & tax strategy
| Service | Fee / unit, excluding tax |
|---|---|
| AI advisory LIGHT / STANDARD / GROWTH | ¥10,000 / ¥13,000 / ¥17,000 per month |
| Tax diagnostic | From ¥100,000 |
| Pre-closing tax optimization | From ¥300,000 |
| Annual tax strategy | From ¥600,000/year |
Standard AI advisory is included in annual plans. Standalone advisory excludes bookkeeping, closing and filing; tax-accountant work is separate. LIGHT: revenue below ¥50m and fewer than 10 staff; STANDARD: below ¥100m and fewer than 20 staff; GROWTH: below ¥300m and fewer than 20 staff.
Compare like for like.
Other firms' services depend on their contracts. Instead of blanket claims, compare these points with your current quote.
| What to compare | Check in your current agreement | YUIUNI × tax partner |
|---|---|---|
| Annual cost | Monthly retainers plus closing, filing and extras | From ¥150,000/year; no duplicate billing for included work |
| Communication | Intake hours, channels and who responds | 24-hour AI intake; professionals handle tax judgment |
| Documents & progress | Submission, missing-item checks and deadline updates | Documents, questions and progress in one conversation |
| Business reporting | Report scope, frequency and additional charges | Monthly reports and quarterly summaries on STANDARD and PLUS |
| Professional responsibility | Who accepts the engagement and files the returns | The engaged tax accountant owns final judgment and filing |
The approximately 50% like-for-like switching proposal is a separate individual quote, not an across-the-board discount on annual plans. Period, volume, tax types and extras are checked and agreed in writing.
A place for the questions that come up every day.
AI intake
Send questions and documents when they arise. AI organizes the request; professional matters go to your tax accountant.
Documents & progress
Keep missing documents, questions and deadlines together, reducing repeated explanations and handoffs.
Business data
Turn accounting records into an understandable view of income and cash flow, within the agreed plan.
24-hour availability refers to AI intake and initial responses, not round-the-clock human tax advice. Professional response and completion times depend on scope and the specific matter.
A tax partner who understands business.
Tax partner / 辻税理士事務所
辻 尚之Naoyuki Tsuji
Naoyuki Tsuji combines tax practice with experience in Hudson's finance and management, international operations, public listing and M&A. A perspective grounded in the realities of running a business.
Full profile →- 1980
- Tax registration and practice established, per supplied biography
- HUDSON
- Former CFO and original Momotaro series producer
- BUSINESS
- International operations, listing and M&A experience
YUIUNI
Document organization, AI intake, progress and professional coordination
Engaged tax accountant
Tax judgment, tax documents, representation and filing
Tsuji Tax Accountant Office is a featured partner. Other tax firms may collaborate according to the matter; the engagement identifies the responsible firm, professional and scope.
Start where you are.
- 01
Talk
Share your business situation, questions and current agreement.
- 02
Agree the scope
Confirm your tax accountant, included work and annual cost before signing.
- 03
Get started
Organize documents and deadlines, then begin ongoing bookkeeping and support.
A clearer view of tax and accounting.
Practical notes for choosing a service and managing everyday records.
Choosing a tax partner
All tax notes →Compare annual tax-service costs, not just monthly retainers.
Include closing, filing and extras, then compare the same scope of work.
Everyday accountingWhat to prepare for monthly bookkeeping.
Connect bank movements to source documents and the purpose of each transaction.
How the service worksWhat AI does—and what your tax accountant owns.
Efficient preparation and professional responsibility are different parts of the same service.
Let's make your next step clear.
Starting a business or considering a new tax accountant? Begin with your situation, scope and costs.
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