How Nelstack.com works

Nelstack.com is an informational website — not a bank, broker, jeweller, CA firm or tax filing service. We do not sell metals, open deposits, execute trades, notarise documents or file returns on your behalf.

Every rate, calculator result and generated document is for planning, education and everyday paperwork — not regulated financial or legal advice. When in doubt, confirm with your bank, jeweller, employer or a qualified professional.

Everything lives under one brand. Pick a suite from the home page or jump straight to a tool.

• Financial Calculators

  57+ calculators · live metal rates

  Metal rates, income tax planner, FD, EMI, SIP and more financial tools

  Open suite

• Bill Generator

  52 Indian bill formats · PDF export

  Indian bill & receipt formats with live preview and PDF

  Open suite

• Online Signature

  Draw, type, sign PDF & documents in-browser

  Draw or type a free signature PNG — private, no signup

  Open suite

• Stamp Maker

  Seals, templates, PNG/SVG & stamp a PDF

  Free online stamp & seal maker — PNG, SVG, stamp a PDF

  Open suite

• Whistle

  Chrome Extension · keyboard launcher

  Chrome extension — aliases, fuzzy search, pinned hotkeys

  Open suite

That does not mean zero data collection across the whole site — metal rates load from our API, the contact form sends email via a delivery provider, and analytics may run when configured. Read the full Privacy page for details.

Gold, silver and platinum pages show indicative retail reference rates ingested from major jeweller-chain and trade sources. We do not display the official India Bullion and Jewellers Association (IBJA) published feed directly.

Domestic prices track international spot metal (quoted in US dollars), converted at the prevailing USD/INR rate, plus import duty and local market conditions. Your local jeweller may quote differently after making charges, wastage, GST and store-specific margins.

Each rate page shows an Updated timestamp and a freshness notice when our backend has not received new data recently. Metal editorial content was last reviewed 18 June 2026.

See gold, silver and platinum rate pages.

Finance calculators use standard Indian conventions documented on each page — for example quarterly compounding on bank FDs, PPF financial-year crediting, current income-tax slabs, and TDS thresholds where applicable.

Calculator pages include formulas, worked examples, comparison tables and FAQs. Each tool shows a Last updated note where tax rules or thresholds may change. Outputs are illustrative: your bank, fund house or employer may use slightly different rounding or policies.

Browse all 57 calculators on the calculators hub.

Bill Generator covers 52 Indian bill, invoice and receipt formats — GST invoices, rent receipts, fuel bills, salary slips and more — with live preview and PDF download. Browse formats.

Stamp Maker helps you design company seals and rubber stamps, browse templates, and place stamps on PDFs. Exports include PNG and SVG. Create a stamp.

Online Signature lets you draw or type a signature, then sign PDFs and other documents (PDF, DOCX, images) converted client-side before signing. Sign documents.

Internal team (Content & calculator accuracy review) at Nelstack.com reviews metal-rate copy and calculator explanations when primary rules change. We aim for accuracy and transparency. When RBI, CBDT or budget announcements change slabs or thresholds, we update calculator logic and on-page copy together.

Metal and tax content is written for a general India audience in English (en-IN). It is not personalised advice for your specific situation. If you spot an error, treat the official government or institution source as authoritative and tell us.

We use AI-assisted tools in our engineering workflow to design, build and maintain Nelstack.com. That helps us ship updates faster; it does not mean your calculator results or metal rates are produced by a chatbot when you click Calculate.

Calculator outputs come from defined formulas and code documented on each page. Metal rates come from our ingestion pipeline and cached reference data.

For AI assistants and search tools, we publish a machine-readable site guide at /llms.txt (full URL list: /llms-full.txt).

Prefer these official references over any third-party summary — including ours — when filing returns or making purchase decisions:

• Income Tax Department (incometax.gov.in) — Filing, Form 26AS, regime choice
• CBDT / Income Tax India — Acts, circulars and budget notes
• Reserve Bank of India — Banking, deposit and currency context
• EPFO — Provident fund rules and interest
• SEBI — Mutual fund disclosures and investor protection
• IBJA — Official bullion association rates (we do not republish their feed)

• Metal prices exclude GST, making charges and TCS unless explicitly noted.
• Tax and TDS calculator results are estimates — verify on incometax.gov.in.
• Mutual fund return figures depend on the inputs you provide; past performance does not guarantee future results.
• Generated bills and receipts are templates — check fields before official use.
• Nothing on this site is financial, legal or investment advice.