Last reviewed on 26 Jan 2026. This hub is evergreen (not a news feed). We update calculators and guidance when official rules/notifications change — and we prefer correctness over rushing updates.

What triggers updates

CBIC notifications, GST portal changes, return form updates, and common mismatch reports from users.

Freshness model

Pages revalidate daily (86400s). “Last reviewed” is a stable editorial date (not auto-generated) to avoid UI drift.

Report an issue

Found a mismatch? Share the tool URL + expected value. We’ll verify against official sources.

Contact →

Read: Accuracy Policy • Not legal advice

Mastering GST Compliance: A Step-by-Step Guide

1) Verify GSTIN

Validate GSTIN format quickly and cross-check on the official portal for active status.

Use GSTIN Verify →

2) Find HSN Codes

Identify HSN chapter + likely GST rate hints for product/service invoicing.

Open HSN Search →

3) Calculate GST

Compute GST-inclusive/exclusive totals and cross-check invoice rounding.

Open GST Calculator →

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Common Questions

Privacy, accuracy, and usage — quick answers.

Is my financial data safe on this website?

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Yes. Most calculators run client-side in your browser (no login needed for basic use). We don’t store your entries in a database for normal calculator usage. For file tools, read the privacy note shown on that tool page.

Are these calculators updated for FY 2025–26?

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We review and update tools when rules/notifications change. This hub was last reviewed on 26 Jan 2026. Always verify final filing rules on the GST portal.

Can I use these tools for official GST filing?

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Use these tools for calculation, cross-checks, and estimates — then file on the official GST Portal (gst.gov.in).

How accurate is the GSTIN Validator?

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It validates the GSTIN structure/format (checksum). It does not confirm active taxpayer status — verify on the GST portal.

Why do I see a small difference vs my invoice?

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Usually rounding differences (line-items vs total). Many tools include rounding options to match common invoice behavior.

Do I need to pay for downloads (PDF/Rate cards)?

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No. Tools and exports are free — we focus on a clean experience without paywalls.