GST Invoice Generator

A GST invoice is a document issued by a registered supplier listing the goods or services sold, applicable tax rates (CGST, SGST, or IGST), HSN/SAC codes, and the total amount. It is mandatory for all taxable supplies under the Goods and Services Tax Act, 2017. Our generator creates fully compliant invoices that meet all 16 mandatory fields specified in CGST Rule 46.

The tool automatically determines the tax type based on the supplier's state and the place of supply. If both are the same state (intra-state supply), it splits the GST into equal CGST and SGST. If they differ (inter-state supply), it charges the full rate as IGST. This happens automatically when you set the supplier state and place of supply.

Yes. The tool validates the full 15-character GSTIN format including the 2-digit state code against all 38 valid Indian state codes, the PAN structure (chars 3-12), and the check digit using the Luhn Mod 36 algorithm. It also auto-fills the PAN and detects the state code from the GSTIN.

The tool includes a searchable database of 50+ common HSN codes (for goods) and SAC codes (for services) covering IT, consulting, construction, food, electronics, textiles, and more. You can also enter any custom HSN or SAC code manually. HSN codes are mandatory for businesses with turnover above ₹1.5 crore.

Yes. Select 'Credit Note' or 'Debit Note' as the invoice type. The tool will add fields for the original invoice number, date, and reason — as required by Section 34 of the CGST Act.

Absolutely. The GST Invoice Generator runs 100% in your browser. No data is uploaded to any server. Your business details, customer information, and invoice data never leave your device. Form data is saved to your browser's localStorage so you can resume later.

The compliance checker tracks 8 mandatory fields required by GST law: Invoice Type, Invoice Number, Invoice Date, Supplier GSTIN, Supplier State, Buyer Name, Place of Supply, and HSN/SAC codes on all items. It shows a real-time score (e.g., 6/8) so you can ensure your invoice meets legal requirements before downloading.

Yes. Upload your company logo (PNG/JPEG, max 2 MB) and a signature image. Both are embedded directly in the generated PDF for a professional appearance.

Yes. Check the 'Reverse Charge Applicable' option in the Invoice tab. This adds the appropriate notation to the invoice per Section 9(3)/9(4) of the CGST Act, indicating that the buyer is liable to pay GST directly.

Yes. Click 'Save as Template' to download your current invoice data as a JSON file. You can also rely on the auto-save feature — the tool automatically saves your form data to localStorage, so your information persists across browser sessions.

Yes. WhiskFile's GST Invoice Generator is completely free to use with no signup required. Create unlimited invoices, add your logo and signature, calculate CGST/SGST/IGST, and download professional PDF invoices — all at no cost.

Yes. Freelancers, consultants, and self-employed professionals can use this tool to create GST-compliant tax invoices for their clients. Add your SAC codes (e.g., 998313 for IT services), upload your logo, and generate professional invoices in seconds.

Absolutely. This tool is designed for Indian small businesses, startups, MSMEs, shopkeepers, and service providers. It supports all GST requirements including multiple tax rates, HSN/SAC codes, and both intra-state and inter-state supply calculations.

Yes. After creating your invoice, click 'Print' to print directly from your browser on A4 paper. You can also download the PDF first and print it later. The invoice is formatted for professional printing with clean margins and proper alignment.

CGST (Central GST) and SGST (State GST) are charged on intra-state supplies (buyer and seller in the same state). IGST (Integrated GST) is charged on inter-state supplies (buyer and seller in different states). The total tax rate remains the same — for example, 18% GST is split as 9% CGST + 9% SGST for intra-state, or charged as 18% IGST for inter-state.

A GST invoice must include: supplier name, address and GSTIN; a unique invoice number (max 16 characters); invoice date; recipient details with GSTIN (for B2B); description of goods/services; HSN or SAC code; quantity and unit; taxable value; tax rate and amount (CGST/SGST or IGST); total amount; and place of supply for inter-state transactions. Our tool tracks all these requirements with the 8-point compliance checker.

Yes. Select 'Bill of Supply' as the document type. Bills of supply are used by composition scheme dealers or for exempt supplies where GST is not charged. The tool automatically hides tax columns and adjusts the format accordingly.

Yes. GST Invoice Generator works on any device with a modern browser — iPhone, Android, iPad, tablets, Chromebooks, and desktop computers. No app download required. The interface adapts to your screen size automatically.