Design capability rooted in tax and accounting
We support not only filings and processing, but also number-based management, structure building, and future risk organization.
Tax, Accounting & Business Advisory
Firstbrain Group
A clear decision-making axis for business and asset matters.
From corporate consulting and tax accounting to inheritance, business succession, real estate, and overseas workforce support, we organize complex issues and accompany clients through execution.
Corporate Tax & Accounting
Inheritance & Succession
Real Estate Consulting
Overseas Workforce Support
Our Position
Group-based support for issues that cannot be solved by tax work alone.
Firstbrain Group is centered on Hayase Tax Accountant Office and provides corporate consulting, inheritance and business succession support, real estate consulting, and overseas workforce support. We connect numbers, systems, management, assets, and practical operations to design realistic solutions.
- Expertise in tax, administrative procedures, and real estate
- Support for both corporate and personal matters
- A group structure based near Shinjuku-gyoemmae
Businesses
Core Businesses
Even when the starting point is a tax consultation, the actual issue often expands into management, assets, succession, or workforce matters. Firstbrain Group connects the necessary specialist areas without forcing the client to separate them.
01Corporate Tax & AccountingCorporate tax filing, accounting, back-office outsourcing, and management structures.→02Inheritance & Business SuccessionInheritance tax filing, personal tax, asset succession, and business continuity planning.→03Management & Real Estate ConsultingCompany ratings, management improvement, real estate utilization, legal procedures, and seminars.→04Overseas Workforce SupportRegistered support organization services for specified skilled workers.→
Strength
Bringing expertise and practical judgment into one decision.
A view across business, individuals, and assets
We organize the relationships between companies, owners, families, and assets without separating them unnecessarily.
A group structure for adjacent issues
We coordinate practical support around real estate, legal procedures, and overseas workforce matters around tax and accounting work.
For Clients
Support for these types of concerns.
Improving corporate tax and accounting operations
Monthly accounting, tax filing, back-office outsourcing, and cash flow management.
Learn morePreparing for inheritance or business succession
Organizing tax, succession, and real estate issues across personal assets and the company.
Learn moreConsulting on real estate and asset utilization
Practical support for real estate consulting and related tax or legal procedure issues.
Learn moreConsidering overseas workforce hiring
Support for hiring and retaining specified skilled workers, with a focus on care workers.
Learn moreGroup
Firstbrain Group
Multiple organizations coordinate to support tax accounting, business consulting, transaction services, and overseas workforce utilization.
Firstbrain Inc.
Management consulting, real estate consulting, accounting outsourcing, legal procedure support, seminars, and training.
Hayase Tax Accountant Office
Corporate tax accounting, management consulting, and personal tax accounting support.
First Stakes Inc.
Development and provision of cashless payment and transaction services using blockchain technology.
Overseas-workers Staffing Center
Registered support organization services for hiring specified skilled workers.
Tell us the whole picture first.
Tax, accounting, inheritance, succession, real estate, and workforce issues are often connected. We help organize where to start.