HSN Summary Calculator
Roll invoices into an HSN-wise summary like Table 12 of GSTR-1.
Enter one line per invoice item with its HSN code. Lines sharing a code, rate and supply type merge automatically — the same consolidation your return's summary table expects.
Enter a code and taxable value for at least one item to build the summary.
How the calculation works
GSTR-1's Table 12 wants goods grouped by HSN code with quantity in standard units and tax by head. This tool performs exactly that consolidation.
- Grouping
Same HSN + same rate + same supply type → one row - Quantities
Σ quantities per UQC (Numbers, KGS, …) - Tax per group
Σ Taxable value × Rate ÷ 100 → CGST/SGST or IGST
Worked example
Two invoices both sell HSN 8517 headphones at 18% intra-state.
You enter
You get
Important points to keep in mind
- Table 12 applicability depends on turnover — B2B HSN reporting is mandatory from four digits (turnover ≤ ₹5 crore) or six digits above that; eight for exports in many cases. Verify current thresholds.
- UQC must match the prescribed codes — 'Numbers' isn't the same as 'Pieces' in the portal's eyes.
- Services belong in the SAC summary instead; keep them off this table.
Frequently asked questions
What is an HSN code?
The Harmonised System of Nomenclature — a globally standardised product classification, extended to 8 digits in India for customs and GST.
How do I find my products' HSN?
Use GSTSelf's HSN finder to search the official list, then confirm borderline classifications with your adviser.
Do B2C sales need HSN summaries too?
Above turnover thresholds, yes — Table 12 covers aggregate HSN-wise figures including B2C supplies.
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