taxsos.jp

What It Is

TAXSOS is not a typical SaaS or enterprise software product. It is a Japan-based specialist tax accountant team focused on tax audits and compulsory investigations by the National Tax Agency. The website repeatedly emphasizes that its members include former National Tax Agency investigators. Its core purpose is to help companies and sole proprietors analyze the situation, negotiate, and defend themselves when there is a “difference of opinion” between taxpayers and the tax authorities.

Core Capabilities and Service Process

Its services cover two high-pressure scenarios: ordinary tax audits by local tax offices, and compulsory investigations by the National Tax Agency. The process starts with the user submitting a form with their name, company name, phone number, preferred meeting date, current case stage, and a summary of up to 200 Japanese characters. TAXSOS says it will call within 24 hours and arrange a 1–3 hour consultation. If the client decides to proceed, a temporary advisory contract is signed. TAXSOS then works alongside the client’s existing tax accountant, clarifies the points in dispute, and takes the lead in negotiations with the tax authorities. Where necessary, it also coordinates with lawyers experienced in tax evasion cases to submit opinion letters or requests to the public prosecutor’s office or taxation department.

Pricing and Software Capabilities

The only publicly disclosed pricing is for consultations: a tax accountant’s on-site visit costs a flat 50,000 yen including day fee and transportation, while an in-office consultation costs 30,000 yen. If a temporary advisory contract is signed, the consultation fee is waived. Fees for formal advisory contracts are not disclosed. From an enterprise software review perspective, the website does not provide a cloud product, self-hosted deployment, APIs, third-party integrations, permission management, data security or compliance documentation, nor does it offer a free plan or trial.

Pros and Cons

Its strengths are its highly vertical positioning, focusing on low-frequency but high-risk events such as tax audits and compulsory investigations. The team’s background, staged intake process, and collaboration mechanism with lawyers are relatively clear. The downsides are also obvious: it is fundamentally a professional service, not scalable software for procurement; pricing transparency is limited; initial consultation requires submitting a form first, and case details cannot be explained directly by phone; and the service is heavily dependent on Japanese tax law and offline expert experience.

Who It Is For and Access from China

TAXSOS is suitable for business owners, corporate representatives, and sole proprietors operating in Japan who have already been affected by a tax audit or compulsory investigation and lack confidence in their current tax accountant’s ability to respond. For Chinese users simply looking for accounting or tax SaaS, TAXSOS is not a good fit; Japanese cloud accounting tools such as freee and Money Forward Cloud are more relevant. Access from mainland China and payment methods are not disclosed, so they should be treated as “unknown.”