In India, an invoice (or "tax invoice") is an official legal commercial instrument issued by a supplier of goods or provider of services to a recipient. Under Section 31 of the Central Goods and Services Tax (CGST) Act, an invoice documents the transaction, itemizes quantities, values, and HSN/SAC codes, computes applicable GST (CGST, SGST, IGST), and states the total payable. A compliant GST tax invoice is mandatory for business buyers to claim Input Tax Credit (ITC).

You can create a 100% compliant GST invoice for free on tryfreeinvoice.com: (1) Enter your business name, 15-digit GSTIN, and registered address; (2) Fill in client billing name, address, and client GSTIN (for B2B ITC); (3) Assign a consecutive serial invoice number (e.g. INV-2026-001) and issue date; (4) Add goods or services with HSN/SAC code, quantity, rate, and GST rate (0%, 5%, 12%, 18%, or 28%); (5) Enter bank details (IFSC, Account Number) and UPI ID (which generates a dynamic payment QR code); and (6) Click "⬇️ Download PDF" or "🖨️ Print" with zero watermarks.

tryfreeinvoice.com is the best free invoice generator online in India because it is built specifically for Indian GST compliance: it automatically detects intra-state vs inter-state supply to split CGST+SGST or apply IGST, supports mandatory HSN/SAC codes, generates instant UPI QR codes for real-time mobile payment, converts numbers to Indian Rupee words (e.g., Lakhs and Crores), ensures zero cloud data tracking, and provides free vector PDF downloads without any signup or watermark.

Under Rule 46(b) of the CGST Rules, an invoice number must be a consecutive serial number not exceeding 16 characters in one or multiple series, containing only alphabets, numerals, and special characters (hyphen "-" and slash "/"). The numbering must be unique for each financial year (e.g. INV/2026-27/001). Gaps in invoice numbers are not permitted by GST authorities.

No, an invoice is NOT a receipt. An invoice is issued BEFORE or at the time of supply to demand payment and charge applicable GST. A receipt voucher (under Section 31(3)(d) of the CGST Act) is issued AFTER receiving advance payment or final settlement from the customer as proof that money has been received.

With tryfreeinvoice.com, you can send invoices seamlessly: (1) WhatsApp: Click "💬 WhatsApp" to send a pre-filled invoice message with total amount, due date, and payment details directly to your client's phone; (2) Email: Click "⬇️ Download PDF" and attach the crisp PDF to your billing email; or (3) UPI QR: Clients can scan the QR code printed on the invoice using PhonePe, Google Pay, or Paytm to pay you instantly.

Under Rule 46 of the CGST Rules, every valid GST tax invoice must contain: (1) Consecutive serial number (unique per fiscal year), (2) Date of issue, (3) Supplier name, address & 15-digit GSTIN, (4) Recipient name, address & GSTIN (for B2B), (5) HSN code (goods) or SAC code (services), (6) Description of goods/services, (7) Quantity & unit, (8) Total value of goods/services, (9) Taxable value after discounts, (10) Applicable tax rate (0%, 5%, 12%, 18%, or 28%), (11) CGST amount, (12) SGST amount, (13) IGST amount, (14) Cess (if applicable), (15) Place of supply with state name & code, and (16) Authorized signature or digital signature.

An e invoice (electronic invoice) in India is a B2B invoice digitally uploaded to the Invoice Registration Portal (IRP). The IRP validates the invoice data, generates a unique Invoice Reference Number (IRN), and attaches a signed QR code. In 2026, e-invoicing is mandatory for businesses with an aggregate annual turnover exceeding ₹5 Crore. Small businesses, freelancers, and dealers below this threshold can freely issue standard PDF invoices generated on this platform.

Yes! If your annual business turnover is below the GST registration threshold (₹20 lakh for services, ₹40 lakh for goods in most states), you are legally exempt from GST registration. In this case, select "Bill of Supply" or standard invoice, leave the GSTIN field blank, and set the tax rate to 0%. You must not collect GST from clients if you do not have an active GSTIN.

For Intra-State transactions (supplier and buyer in the same state), GST is split equally into 50% CGST (Central GST) and 50% SGST (State GST). For example, an 18% GST rate becomes 9% CGST + 9% SGST. For Inter-State transactions (supplier and buyer in different states), the full 18% is billed as IGST (Integrated GST). Our generator automatically calculates this based on your selected supply type.

Issue a "Tax Invoice" if you are a regular GST registered dealer selling taxable goods or services — this allows your business client to claim Input Tax Credit (ITC). Issue a "Bill of Supply" if you sell GST-exempt goods, or if you are registered under the GST Composition Scheme, or if you are an unregistered seller.

Under GST rules: (1) Businesses with aggregate annual turnover up to ₹5 Crore must mention at least 4 digits of HSN code on B2B invoices (optional for B2C). (2) Businesses with annual turnover exceeding ₹5 Crore must mention 6 digits of HSN code on all B2B and B2C invoices. Service providers use 6-digit SAC (Services Accounting Code) codes.

Export of services to clients outside India is treated as a "Zero-Rated Supply". Freelancers who have filed a Letter of Undertaking (LUT) under Form GST RFD-11 can invoice foreign clients without paying IGST (0% tax). On the invoice, mention: "Supply meant for export of services under Letter of Undertaking without payment of integrated tax".

Click the "📄 Fit 1 Page" button or use the "－ / ＋" zoom controls in the top action bar. The smart sizing engine condenses padding and row spacing so that all items, tax summaries, and UPI QR codes fit neatly onto one page.