JP Tax Calc

Calculate Japanese income, consumption, and corporate taxes for e-Tax filing.

1|Updated Mar 13, 2026
One-click install
npx skills add https://github.com/traygerbig/clawhub-skills --skill jp-tax-calc
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: JP Tax Calc
Source: https://github.com/traygerbig/clawhub-skills/tree/main/finance-accounting-pack/jp-tax-calc
Command: npx skills add https://github.com/traygerbig/clawhub-skills --skill jp-tax-calc

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires ETAX_API_KEY, MYNUMBER_VERIFY_KEY, FREEE_ACCESS_TOKEN, JP_TAX_YEAR, and includes scripts (resource) and references (resource) and assets (resource) components.

What problem does it solve?

This Skill simplifies the complex task of calculating Japanese taxes and prepares you for e-Tax filing, offering a streamlined solution for tax compliance.

Core Features & Use Cases

  • Japanese Tax Calculations: Handles income tax, consumption tax, corporate tax, and preparation for 確定申告.
  • e-Tax Integration: Supports e-Tax filing and identity verification through APIs.
  • Use Case: Use this Skill to quickly calculate your income tax, consumption tax, or corporate tax for the current year.

Quick Start

Use the JP Tax Calc skill to calculate your income tax for the 2026 tax year.

Frequently Asked Questions about JP Tax Calc

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I calculate Japanese corporate tax and prepare for e-Tax filing?

Japanese income tax for 確定申告 is calculated by applying current Japanese tax laws to your financial data. This Skill computes your income tax, consumption tax, or corporate tax for the specified tax year and prepares the information for e-Tax filing.

What APIs do I need to configure for Japanese tax calculation and e-Tax integration?

Japanese tax calculation and e-Tax integration require configuring ETAX_API_KEY, MYNUMBER_VERIFY_KEY, FREEE_ACCESS_TOKEN, and JP_TAX_YEAR environment variables. These API keys enable identity verification, freee accounting data access, and accurate e-Tax API filing.

Can I use this Skill to calculate both individual income tax and consumption tax in Japan?

Yes, you can calculate both individual income tax and consumption tax in Japan, as well as corporate tax. The Skill handles calculations across these tax types and prepares the necessary information for 確定申告 using Japanese tax laws and e-Tax APIs.

What's the best way to automate 確定申告 preparation using Japanese tax APIs?

Automating 確定申告 preparation is best achieved by using integrated e-Tax APIs and freee access tokens to pull financial data. This Skill applies Japanese tax laws to calculate your tax liabilities and prepares the filing information for compliant electronic submission.

Does e-Tax filing support identity verification through My Number for Japanese tax calculations?

e-Tax filing does support identity verification through My Number for Japanese tax calculations. The Skill utilizes the MYNUMBER_VERIFY_KEY environment variable to authenticate your identity via APIs, ensuring your tax calculations and e-Tax filings remain compliant with Japanese regulations.