{
  "id": 15726854,
  "title": "TaxGst.in Free Income Tax Calculator, Free GST Tools & Finance Guides India",
  "url": "https://urgent.news/2026/10/20/taxgst-in-free-income-tax-calculator-free-gst-tools-finance-guides",
  "topic": "finance",
  "section": "Finance & Markets",
  "published": "2026-10-20T09:47:17.000Z",
  "source": {
    "name": "Dev.to",
    "slug": "dev-to",
    "url": "https://dev.to/akaranjkar08/taxgstin-free-income-tax-calculator-free-gst-tools-finance-guides-india-2nbp"
  },
  "original_language": "en",
  "account": "TaxGst.in is a popular free income tax calculator in India, catering to developers who create payroll, finance or fintech applications. The tool provides a web-based interface that quickly calculates federal tax liability, taking into account various deductions such as HRA, home loan interest, and capital gains. Being free, developers can either embed the calculator's logic into their own applications, call its API, or direct users to the Income Tax Calculator page without any licensing concerns.\n\nThe core features of TaxGst.in's calculator include all individual tax slabs for the fiscal year 2024-25, including the new 30% top rate. It also supports standard deductions, professional tax, and various Section 80 deductions. The tool calculates HRA exemptions based on rent paid, city tier, and basic salary, as well as home loan interest deductions under Section 24(b). Additionally, it automatically includes health and education cess at 4%.\n\nTo illustrate, consider a Bangalore engineer earning ₹15,00,000 annually, receiving ₹1,80,000 HRA, paying ₹2,40,000 in rent, and having a home loan interest of ₹1,20,000. The following JavaScript code demonstrates how to call TaxGst.in's public endpoint to determine the tax liability:\n\n```javascript\nconst payload = {\nfinancialYear : \"2024-25\",\ngrossSalary : 1500000,\nhraReceived : 180000,\nrentPaid : 240000,\ncityTier : \"II\",\nhomeLoanInterest : 120000,\ndeductions : {\nsection80C : 150000,\nsection80D : 25000\n}\n};\n\nfetch(\"https://api.taxgst.in/v1/income-tax\", {\nmethod : \"POST\",\nheaders : {\n\"Content-Type\" : \"application/json\"\n},\nbody : JSON.stringify(payload)\n})\n.then(res => res.json())\n.then(data => console.log(\"Tax payable: \", data.taxPayable))\n.catch(err => console.error(err));\n```\n\nThe API returns a JSON object containing taxPayable, taxBreakup, and effectiveRate, which can then be stored, displayed in a user interface, or used in downstream payroll processing.\n\nFor integrating the calculator into a payroll service, a Node.js microservice can be used. This service pulls employee data from a MongoDB collection, runs the tax calculation, and updates the results in the database. The provided example shows a Node.js microservice outline that connects to MongoDB, iterates through employee records, makes a POST request to the TaxGst.in API, and updates the tax information for each employee.",
  "summary": "Why TaxGst.in is the Go‑to Free Income Tax Calculator for Indian Developers Developers building payroll, finance, or fintech applications need a reliable, zero‑cost income tax calculator that reflects the latest Indian tax slabs, cess, and deductions. TaxGst.in offers a web‑based calculator that instantly computes federal tax liability, handles HRA, home‑loan interest, and even capital‑gains…",
  "key_points": [
    "TaxGst.in offers free income tax calculator for developers",
    "Supports 2024-25 tax slabs, deductions, HRA, home loan interest",
    "Provides API for easy integration into payroll systems"
  ],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}