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Taiwan Payroll

Created By
supra12611 days ago
Taiwan statutory payroll calculation — labor & health insurance, labor pension, 2nd-gen NHI supplementary premium, income-tax withholding, and labor-insurance old-age benefits. Sourced from official gazettes, verified against official sample data. TS (npm) + Python (PyPI) + MCP (remote & stdio).
Content

taiwan-payroll

npm PyPI License: MIT smithery

開源的台灣勞健保勞退法定費用計算引擎。輸入薪資與身份,算出勞保(含就保)、健保、勞退、職災與二代健保補充保費的各方負擔——並涵蓋薪資所得扣繳、月中到職/離職破月、健保補充保費申報媒體檔,以及勞保老年給付試算。

在 AI 助理中以自然語言詢問薪資,taiwan-payroll MCP server 呼叫 calculate_payroll 即時算出員工自付 4,872、雇主負擔 8,315
示意:在支援 MCP 的 AI 助理(Claude / Cursor 等)中呼叫 taiwan-payroll

月薪 42,000 第一類計算結果:員工負擔 4,872、雇主負擔 8,315、政府補助 864(新台幣/月,民國115年度)

  • 🧮 線上試算https://taiwan-payroll.vercel.app(免安裝,瀏覽器直接算)
  • 🔌 三種介面:TypeScript(npm)、Python(PyPI,純 stdlib)、MCP server(給 AI 助理呼叫)
  • 📑 官方對證:級距表與費率逐級取自主管機關公告,計算結果對官方範例黃金向量逐位元驗證
  • 🔁 跨語言一致:TS 與 Python 讀同一份 data/、跑同一套 testdata/,結果逐位元相同
  • 📦 零執行期依賴:core 不帶任何 runtime 套件

定位是「計算引擎」而非「法遵保證」。 內建民國 113–115(2024–2026)年度官方參數。

安裝

npm install taiwan-payroll      # TypeScript / Node
pip install taiwan-payroll      # Python

快速上手

import { createPayrollEngine } from 'taiwan-payroll';

const engine = createPayrollEngine({ year: 2026 });
const r = engine.calculate({
  monthlySalary: 42000,
  identity: 'category1',
  dependents: 1,
  employmentInsurance: true,
  pensionSelfContribution: 0.06,
});

console.log(r.employee); // { labor: 1050, health: 1302, pensionSelf: 2520, total: 4872 }
console.log(r.employer.occupational); // 職災雇主負擔

二代健保補充保費與破月計算

// 補充保費(六類所得:bonus/parttime/professional/dividend/interest/rent)
engine.calculateSupplementary({ type: 'bonus', amount: 200000, monthlyInsuredSalary: 42000 });
// → { type: 'bonus', chargeable: 32000, rate: '0.0211', premium: 675 }

// 月中到職/離職(勞保/職保/勞退按日;健保採官方「月底歸屬」原則)
engine.calculateProrated({ monthlySalary: 29500, startDate: '2026-03-08' });
// → { ..., days: { insured: 23 }, healthCharged: true }

健保破月採「月底歸屬原則」:以月底所屬投保單位計收整月——到職當月計整月、離職當月不計。此為健保署實務規則(非按日、與 15 日分水嶺無關)。

申報媒體檔(健保補充保費)

由申報資料產生健保署「補充保險費明細申報檔」(CSV/Big5),涵蓋 6 類所得:獎金(62)、兼職薪資(63)、執行業務(65)、股利(66)、利息(67)、租金(68)。每個產生器皆以健保署官方範例逐位元驗證,TS 與 Python 結果一致。

import { generateSupplementaryBonusFiling } from 'taiwan-payroll';

const { filename, content } = generateSupplementaryBonusFiling({
  year: 2026,
  filingDate: '20260901', // 用於檔名
  unit: { taxId: '11111111', name: '甲公司', phone: '0227065866', email: 'a@b.tw', contactName: '王小明' },
  records: [
    { action: 'I', payDate: '20260615', payeeId: 'A123456789', payeeName: '李四',
      bonusAmount: 50000, insuredSalary: 31800, ytdBonusCumulative: 150000, unitCode: '123456789' },
  ],
});
// filename: 'DPR111111111150901001.csv'
// content : Unicode 字串;檔案實際為 Big5,存檔時請以 Big5 編碼寫出。
  • 獎金/兼職/執行業務/利息/租金:逐列補充保費由引擎計算。股利(generateSupplementaryDividendFiling)因含股票股利/雇主扣除等情形,逐列保費由呼叫端提供(另附便利函式 calcDividendPremium)。
  • 輸出為「資料檔」供以官方入口上傳。Big5 編碼:TS 由呼叫端編碼,Python 提供 to_big5_bytes()(core 維持零依賴)。
  • API 詳見文件站 /docs/api

勞保老年給付試算

依勞保局官方公式試算三種老年給付(皆對官方數值/公式驗證、TS≡Python):

import { calcOldAgePension, calcOldAgeLumpSum, calcOldAgeSinglePayment, getYearData } from 'taiwan-payroll';
const d = getYearData(2026);
calcOldAgePension(d, { avgInsuredSalary: 32000, years: 35, months: 6 });     // 月領年金(擇優兩式,可提前/延後)
calcOldAgeLumpSum(d, { avgInsuredSalary: 30000, years: 10 });                // 老年一次金
calcOldAgeSinglePayment(d, { avgInsuredSalary: 30000, preSixtyYears: 20 });  // 一次請領(舊制基數)
  • 老年年金:擇優兩式(平均×年資×0.775%+3000 vs ×1.55%),提前/延後 claimOffsetMonths(±4%/年、上限 ±5 年(±20%));附 averageHighestInsuredSalarystatutoryClaimAge
  • 老年一次金:年資每滿 1 年發 1 個月,逾 60 歲後年資最多 5 年。
  • 一次請領:基數制(前 15 年每年 1 基數、超過部分每年 2 基數、前 60 上限 45、合併上限 50),平均採退保前 36 個月。
  • 試算僅供參考,實際以勞保局核定為準。

架構

  • data/{year}.json — 單一事實來源,年度法規參數(級距表、費率),以 JSON Schema 驗證。
  • testdata/ — 語言無關的黃金測試向量(官方案例,含 source 出處),是跨語言行為一致性的根基。
  • packages/core — 零執行期依賴的 TypeScript 引擎。

其他語言與介面

  • Pythonpip install taiwan-payroll,純 stdlib、API 對應 TS 版(PyPI)。
  • MCP server:讓 Claude 等 AI 助理直接呼叫試算。遠端免安裝端點 https://taiwan-payroll.simoko.workers.dev/mcp(Streamable HTTP),或本地 npx taiwan-payroll-mcp(stdio,npm)。
    • 上架於官方 MCP Registry(io.github.supra126/taiwan-payroll)、Smithery(一鍵安裝)與 Glama
  • 線上計算機與完整 APIhttps://taiwan-payroll.vercel.app

taiwan-payroll MCP server — Glama 品質評分

資料來源(2026 / 民國115年)

項目主管機關文號
勞保投保薪資分級表(11級,上限45,800)勞動部勞保局勞動保2字第1140091863號令
勞退月提繳分級表(62級,上限150,000)勞動部勞保局勞動福3字第1140153598號令
職災投保薪資分級表(21級,上限72,800)勞動部勞保局職災保險法§17
健保投保金額分級表(58級,上限313,000)衛福部健保署衛部保字第1140153424號令

費率:勞保 12.5%(含就保 1%)、健保 5.17%、勞退雇主 6%、職災平均 0.21%、二代健保補充保費 2.11%。

目前內建民國 113/114/115(2024/2025/2026) 三個年度,各年度的分級表與文號見 data/{year}.jsonsources;以 createPayrollEngine({ year }) 指定,可用年度由 getAvailableYears() 取得。

開發

pnpm install
pnpm validate:data   # 驗證 data schema、級距連續性、向量格式
pnpm -r test         # 跑全部黃金測試向量
pnpm typecheck

免責聲明

本套件依公開法規與主管機關公告實作,計算結果僅供參考,實際應繳金額以勞保局、健保署核發之繳款單為準。本套件不構成法律或會計建議。

License

MIT

Server Config

{
  "mcpServers": {
    "taiwan-payroll": {
      "command": "npx",
      "args": [
        "-y",
        "taiwan-payroll-mcp"
      ]
    }
  }
}
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