GST Bill Format: Free A4 & A5 Invoice Templates for India
Download and explore 100% legally compliant GST invoice formats meeting Indian Tax Rule 46 requirements. Choose between full A4, compact A5, and thermal receipt formats in OKBill.
Choose the Perfect GST Bill Format for Your Business
Whether you run a fast-paced retail counter or wholesale distribution, OKBill supports all standard paper formats:
Classic A4 Corporate GST Tax Invoice
Standard 8.27 x 11.69 inch format featuring dedicated blocks for company logo, multi-item HSN tax breakup, bank account details, and terms & conditions.
- Supplier & Buyer GSTIN with HSN lookup
- Itemized CGST, SGST, and IGST tax breakout
- Instant PDF export & direct printer connectivity
TAX INVOICE
BHARAT TRADERS & SUPPLIERS
GSTIN: 27AABCB1234D1Z2 | STATE: MH (27)
Invoice: #INV-2026-089 | Date: 31-Oct-2026
Buyer: Raj Enterprises (GSTIN: 27ABCDE5678F1Z9)
Place of Supply: Mumbai, Maharashtra
10 Mandatory Fields Required Under GST Rule 46
Missing any of these fields can render a tax invoice non-compliant, disqualifying your buyer from claiming Input Tax Credit (ITC):
Supplier Name, Address & GSTIN
Full registered legal business name, physical address, and 15-digit GSTIN of the seller.
Consecutive Serial Number
Unique consecutive invoice number containing alphabets, numerals, or special characters (up to 16 digits).
Date of Issue
Exact date when the goods or services were delivered and bill was issued.
Recipient Details & GSTIN
Name, address, and GSTIN of the buyer if registered under GST.
HSN or SAC Code
Harmonized System of Nomenclature (HSN) for goods or SAC code for services.
Item Description & Quantity
Clear description of goods, unit of measurement (Kg, Litres, Pcs), and exact quantity supplied.
Taxable Value
Total value of supply after deducting any discount or trade rebates.
Tax Rates & Exact Amount
Explicit breakdown of CGST, SGST, or IGST rate percentage and total tax amount charged.
Place of Supply & State Code
Name of the destination state and 2-digit state code (e.g., Gujarat 24, Maharashtra 27).
Authorized Signature
Signature or digital signature of the supplier or authorized representative.
Manual Excel Formats vs. OKBill App
Why modern Indian businesses are replacing messy Excel/Word templates with OKBill:
| Feature / Capability | Manual Excel / Word | OKBill Invoicing App |
|---|---|---|
| Billing Speed | 3-5 minutes per invoice | Under 10 seconds with Product Code |
| Tax Calculation Accuracy | High risk of broken formulas | 100% Automated & Accurate |
| Inventory & Stock Sync | Requires manual dual entry | Real-time automatic deduction |
| Offline Availability | Bulky PC/Laptop dependent | Runs 100% offline on any phone |
| Customer Delivery | Manual PDF save and attach | One-tap SMS and WhatsApp delivery |
GST Bill Format FAQs
What are the mandatory elements of a valid GST bill format?
Under Rule 46 of Indian CGST Rules, an invoice must contain: Supplier & Buyer GSTIN, consecutive unique invoice number, date, HSN/SAC code, item description, quantity, taxable value, CGST/SGST/IGST breakdown, and authorized signature.
Which format is better: A4 or A5?
A4 (full sheet) is best suited for B2B transactions, wholesale distribution, and invoices with many line items. A5 (half sheet) is ideal for retail shops, hardware stores, and traders as it cuts paper costs by 50% and prints fast.
Can I use manual Excel or Word GST invoice formats?
While Excel formats are common, they are vulnerable to formula mistakes, serial number duplication, and lack stock inventory links. Dedicated billing software like OKBill calculates taxes automatically and prevents compliance errors.
Can I customize the invoice templates in OKBill?
Yes! OKBill provides multiple professionally designed invoice layouts (Classic Business, Modern Minimal, and Corporate) with one-click toggles between A4, A5, and thermal slip printing.
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Print A4 and A5 GST bills instantly from your phone. 100% free, offline, and trusted across India.
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