技能 withholding-tax
📦

withholding-tax

内容修订 r1 安全 ⚙️ 外部命令🌐 网络访问

Estimate Japanese Monthly Withholding Tax

Japanese salary withholding varies with payment year, eligible dependents, and pay after social insurance. This skill calculates local formula-based estimates and explains differences from printed tax tables.

支持: Claude Codex Code(CC)
🥉 77 青铜

使用我的智能体安装

将此请求复制给你的智能体，其中包含权威 Skill 页面和清单。

智能体请求
Review the Skillstore skill "withholding-tax" from https://skillstore.io/skills/tahodev-withholding-tax.md and its manifest at https://skillstore.io/api/skills/tahodev-withholding-tax/manifest. Verify the artifact. You may proceed after verification, subject to the environment's own policy.

你的智能体仍应展示其计划，并按安全策略请求必要确认。

Agent 可读资源

当 AI Agent、爬虫或脚本需要干净上下文，而不是读取完整页面时，请使用这些链接。

Markdown 详情 GET /skills/tahodev-withholding-tax.md 已签名 manifest GET /api/skills/tahodev-withholding-tax/manifest 已签名 lockfile GET /api/skills/tahodev-withholding-tax/lockfile

测试它

正在使用“withholding-tax”。 Estimate 2026 withholding for 175,000 yen after social insurance and two eligible dependents.

预期结果:

  • Employment-income deduction: 59,167 yen. Dependent deduction: 63,334 yen. Basic deduction: 48,334 yen.
  • Taxable monthly income: 4,165 yen. Estimated withholding: 210 yen.
  • The documented printed-table amount is 250 yen. The formula estimate is not a guaranteed payroll amount.

正在使用“withholding-tax”。 Estimate 2027 withholding for 177,000 yen after social insurance and two eligible dependents.

预期结果:

  • Employment-income deduction: 59,767 yen. Dependent deduction: 63,334 yen. Basic deduction: 51,667 yen.
  • Taxable monthly income: 2,232 yen. Estimated withholding: 110 yen.
  • The documented printed-table amount is 150 yen. Confirm actual withholding with the employer or applicable tax table.

正在使用“withholding-tax”。 Estimate 2025 withholding for 300,000 yen after social insurance and zero eligible dependents.

预期结果:

The calculator supports only 2026 and 2027. Consult the National Tax Agency table for the actual payment year.

安全审计

安全
v1 • 2026/10/13 打开版本化报告

All seven static findings are false positives: Markdown fences, official tax-reference URLs, and readable Japanese text triggered the patterns. The reviewed calculator performs local arithmetic without network calls or shell execution. No evidence found of prompt injection, credential access, or data exfiltration.

3
已扫描文件
250
分析行数
0
复核项
0
已忽略误报

风险因素

⚙️ 外部命令 (2)
SKILL.md:26-29 SKILL.md:29-87
🌐 网络访问 (4)
SKILL.md:42 SKILL.md:43 SKILL.md:44 SKILL.md:45
最新一次完成的静态与语义审计未检测到已确认的安全发现。这并不能证明该 Skill 没有副作用。
审计者: codex
分享与引用此报告

分享版本化评估报告、中性徽章、嵌入卡片和引用。Skillstore 只报告证据，不判断该 Skill 是否安全。

打开版本化报告
安全评估

复制报告链接

https://skillstore.io/skills/tahodev-withholding-tax/audits/1?utm_source=security_passport&utm_medium=share&utm_campaign=versioned_report

Markdown 徽章

[![Skillstore security assessment](https://skillstore.io/badges/skills/tahodev-withholding-tax/security.svg)](https://skillstore.io/skills/tahodev-withholding-tax?utm_source=security_passport_badge)

HTML 徽章

<a href="https://skillstore.io/skills/tahodev-withholding-tax?utm_source=security_passport_badge"><img src="https://skillstore.io/badges/skills/tahodev-withholding-tax/security.svg" alt="Skillstore security assessment" loading="lazy"></a>

嵌入卡片

<iframe src="https://skillstore.io/embed/skills/tahodev-withholding-tax.html" title="Skillstore Security Assessment" sandbox="allow-popups allow-popups-to-escape-sandbox" loading="lazy" referrerpolicy="no-referrer" width="420" height="180"></iframe>
学术引用 (APA · BibTeX · CFF)

APA 引用

tahodev. (2026). withholding-tax security audit report (audit version 1) [Author version unspecified]. Skillstore. https://skillstore.io/skills/tahodev-withholding-tax/audits/1

BibTeX 引用

@techreport{tahodev-tahodev-withholding-tax-2026, author = {tahodev}, title = {withholding-tax security audit report (audit version 1)}, institution = {Skillstore}, year = {2026}, number = {1}, url = {https://skillstore.io/skills/tahodev-withholding-tax/audits/1}, note = {Author version unspecified} }

CITATION.cff

cff-version: 1.2.0 message: "If you use this Skill, cite its author and this versioned security audit report." title: "withholding-tax security audit report (audit version 1)" version: "unspecified" type: report authors: - name: "tahodev" date-released: "2026-10-13" url: "https://skillstore.io/skills/tahodev-withholding-tax/audits/1" identifiers: - type: other value: "skillstore:tahodev-withholding-tax:audit:1" description: "Skillstore immutable audit report identifier"

Skillstore 评分

评分依据 证据置信度: 中
55
架构
85
可维护性
87
内容
65
社区
83
规范符合性

你能构建什么

Check a monthly payslip estimate

Estimate withholding from salary after social insurance and compare the result with employer deductions.

Compare payment-year assumptions

Compare 2026 and 2027 formula estimates for identical salary and dependent inputs before discussing payroll differences.

Explain deduction calculations

Show a worked deduction breakdown and explain why formula estimates can differ from monthly tax-table amounts.

试试这些提示

Get a basic estimate 
Estimate my 2026 monthly withholding for 175,000 yen after social insurance and two eligible dependents. State the tax-table limitation.
Review the deduction breakdown 
For [year], estimate withholding on [salary] yen after social insurance with [dependents] eligible dependents. Show each deduction and the rounding.
Compare supported years 
Compare 2026 and 2027 monthly withholding estimates for 300,000 yen after social insurance and zero eligible dependents. Identify changed deductions and estimate differences.
Investigate a payroll discrepancy 
Review [year] withholding for [salary] yen after social insurance, [dependents] eligible dependents, and employer withholding of [amount] yen. Explain possible formula-versus-table differences without assuming employer error.

最佳实践

  • Use salary after social insurance deductions, not gross salary or total take-home pay.
  • Specify the payment year explicitly and confirm the eligible dependent count before calculating.
  • Compare estimates with the applicable official table and employer payslip before making payroll decisions.

避免

  • Entering gross salary as salary after social insurance.
  • Treating formula estimates as exact tax-table values or final annual tax liabilities.
  • Using the default 2026 year for other payment years or applying the calculator to bonuses and column B.

常见问题

Which payment years are supported?
The calculator supports 2026 and 2027 only. It defaults to 2026, so specify the payment year explicitly.
Which salary amount should I enter?
Enter monthly salary after social insurance deductions as integer yen. Do not enter gross salary or final take-home pay.
How should I count dependents?
Use withholding-eligible spouse and relative counts, including applicable disability or single-parent adjustments. Confirm eligibility separately; the calculator does not assess it.
Why can the result differ from my payslip?
The formula and printed monthly tables can produce different amounts. Employer methods, payment year, and dependent counts also affect withholding.
Does calculation require network access?
No. The Python calculator uses bundled constants and standard-library modules locally. Official PDF links provide references rather than automatic updates.
Can it calculate bonuses or annual tax?
No. It covers monthly column A withholding estimates only, not bonuses, column B, resident tax, year-end adjustments, or annual returns.

开发者详情

作者

tahodev

许可证

MIT

Skillstore 修订

r1

版本提示

作者未声明版本。

仓库

https://github.com/tahodev/kurashi-skill/tree/09cb7f9eac85f0c85633cce08328a1a57854a94f/withholding-tax

引用

7f17813fb6af1acc7d8fd3fb5f05480f5be52783

维护新鲜度

2026/10/13

使用量

0 次下载 · 0 次浏览

文件结构

📄 lookup.py

📄 SKILL.md

📁 tests/

📄 test_lookup.py

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