Free GST Invoice Generator India — Download PDF Instantly

Create fully GST-compliant invoices. Auto-calculates CGST/SGST for intrastate or IGST for interstate. GSTIN validated instantly.

🔒 Invoice data stays in your browser — never uploaded

🧾 Seller Details

Business / Your Name

Seller GSTIN

Seller Address

Seller State

🏢 Buyer Details

Buyer / Client Name

Buyer GSTIN (optional for B2C)

Buyer Address

Buyer State

📋 Invoice Details

Invoice Number

Invoice Date

Due Date

GST Type

📦 Line Items

Description	HSN/SAC	Qty	Unit	Rate (₹)	GST%	Amount (₹)

📊

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📌 Mandatory GST Invoice Fields: Seller name + GSTIN + address, Invoice number + date, Buyer name + GSTIN (B2B), HSN/SAC code, Quantity + unit, Taxable value, GST rate + amount (CGST+SGST or IGST), and Total value.

Frequently Asked Questions

When should I charge IGST vs CGST+SGST?+

IGST (Integrated GST) applies when seller and buyer are in different states — interstate transactions. CGST + SGST applies for intrastate transactions (same state). This calculator auto-detects based on seller and buyer states you select.

Is buyer GSTIN mandatory on a GST invoice?+

For B2B transactions (business to business), buyer GSTIN is mandatory to allow the buyer to claim Input Tax Credit. For B2C (business to consumer), GSTIN is not required, but the invoice must still show all other mandatory fields.

What is HSN/SAC code?+

HSN (Harmonised System of Nomenclature) codes are for goods. SAC (Services Accounting Code) codes are for services. For IT/software services: SAC 998313 or 998314. For consulting: SAC 998311. Check the GST HSN/SAC finder at gst.gov.in.