GST 2.0 slabs 0% · 5% · 18% · 40% from 22 Sep 2025Special rates 0.25% & 3% stones · precious metalsLate fee ₹50/day ₹20/day for nil returnsLate-fee cap ₹2,000 – ₹10,000 by turnoverInterest 18% p.a. on tax paid lateIntra-state CGST + SGST split equallyInter-state IGST full rateGSTIN 15 characters with a check digitGST 2.0 slabs 0% · 5% · 18% · 40% from 22 Sep 2025Special rates 0.25% & 3% stones · precious metalsLate fee ₹50/day ₹20/day for nil returnsLate-fee cap ₹2,000 – ₹10,000 by turnoverInterest 18% p.a. on tax paid lateIntra-state CGST + SGST split equallyInter-state IGST full rateGSTIN 15 characters with a check digit
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GST calculators

🧮GST CalculatorAdd or remove GST with the CGST, SGST or IGST split.🔄Reverse GST CalculatorFind the base price and tax inside a GST-inclusive amount.⏰GST Late Fee & Interest CalculatorLate fee and 18% interest for a delayed GSTR-3B or GSTR-1.📈GST Profit Margin CalculatorCost price to selling price with margin, GST and cess.🔎GSTIN ValidatorCheck a GSTIN’s format, checksum, state and PAN.

Invoices & billing

🧾GST Invoice GeneratorA GST-ready tax invoice with auto totals, saved as PDF.📋Quotation MakerProfessional GST quotations with logo, bank details and terms.📒Billbook ToolBills, party book, numbering and balance tracking on your device.

GST guides

📘GST 2.0 explainedThe 5%, 18% and 40% slabs and what changed.📘How to calculate GSTAdd and remove GST formulas with examples.📘CGST vs SGST vs IGSTWhich tax applies within and across states.📘GST invoice rulesMandatory fields, copies and time limits.📘Quotation vs invoice vs proformaWhen to use each document.
All 8 tools are free, need no sign-up and run in your browser.Who builds bydigital →
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Contact bydigital

Report a wrong number, a bug or suggest a GST tool. Every message is read by a person.

Email: [email protected]
We usually reply within 1–2 working days (IST).

What to include

  • A wrong result: the tool, the exact inputs and the result you expected, so we can re-run the case.
  • A bug or display problem: your device and browser (for example “Chrome on Android”) and a screenshot if possible.
  • A tool or guide idea: the situation you face; most tools on the site started as a user’s request.

Your documents stay with you

Because the tools run in your browser, we never receive the invoices, quotations or numbers you create and cannot recover them. Attach a copy yourself if you want us to look at one.

What we cannot help with

We are not chartered accountants. We cannot advise on your tax position, reply to GST notices for you, or confirm whether a business is registered; for live GSTIN status use gst.gov.in.

Business details

bydigital.in is operated by Universal Hospitality, Navi Mumbai, Maharashtra, India. Editor: Mantu Kumar.