Is the tax advice provided by this skill legally binding?

No, the skill provides guidance based on general tax laws and specific user input. Users are encouraged to consult a certified tax accountant (Zeirishi) for final legal verification.

What is the primary purpose of the assess skill?

It is designed to determine if a user in Japan is legally required to file a tax return (Kakutei Shinkoku) and identifies the specific types of filings needed based on their financial situation.

Can it track progress across different Claude sessions?

Yes, the skill writes a standardized progress file to the .shinkoku directory, allowing Claude to resume the assessment even if the session is interrupted.

Does this skill handle the new Japanese Invoice System?

Yes, it includes logic to determine if a user is a taxable business entity and checks eligibility for special measures like the 20% (2-wari) tax rule.

Japanese Tax Filing Assessment

Name: Japanese Tax Filing Assessment
Author: kazukinagata

bykazukinagata

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323

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Productivity & Workflow

Evaluates Japanese tax filing requirements by analyzing income, deductions, and business status through interactive AI guidance.

The assess skill is a core component of the Shinkoku AI agent framework, designed to help users navigate the complexities of the Japanese tax system (Kakutei Shinkoku). It systematically interviews users about their salary, business income, stock dividends, and cryptocurrency gains to determine filing obligations for income tax, consumption tax, and resident tax. By applying specific legal logic such as Income Tax Law Article 121 and the latest Invoice System rules, it provides a comprehensive summary of required actions and generates standardized handoff files to streamline the automation of the actual filing process.

Key Features

01Automated handoff file generation for persistent workflow tracking

02Interactive income and deduction eligibility screening

03323 GitHub stars

04Mortgage tax credit (Housing Loan Deduction) eligibility checks

05Logic-based assessment for Income, Consumption, and Resident taxes

06Support for side income (Fukugyo) and crypto-asset tax logic

Use Cases

01Evaluating consumption tax obligations and '2-wari' special rule eligibility for invoice-registered businesses.

02Assessing whether medical expenses or first-year mortgage credits warrant a voluntary tax return for a refund.

03Determining if side business income exceeds the 200,000 yen threshold for mandatory filing.

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add kazukinagata/shinkoku assess

For use in Claude.ai and ChatGPT

Download Skill