How to Make GST Bill Online for Small Business — Step-by-Step Guide

How to make GST bill online for small business in India step by step

Every GST-registered small business in India must issue compliant GST bills for every taxable sale. Making these bills online — instead of handwriting them or using Excel — ensures they are correctly formatted, properly numbered, and instantly shareable.

This step-by-step guide shows exactly how to make a GST bill online for your small business using Khata Billing — free, in under 5 minutes.

Key Points

  • Valid GST bill format — meets all GST Act requirements
  • Auto CGST/SGST or IGST — based on customer state
  • Sequential invoice numbering — automatically maintained
  • HSN/SAC code support with built-in search tool
  • Amount in words — auto-generated on every bill
  • PDF download — professional format, your logo
  • WhatsApp sharing — customer receives instantly
  • Free — no credit card, no invoice limit

One-Time Setup Before Making Your First GST Bill

Complete this setup once — every bill after this is under 2 minutes:

  1. Sign up at khatabilling.com — free, takes 2 minutes
  2. Add your business profile: Legal name, full address, GSTIN, contact number, bank details, and upload your logo
  3. Add your products/services: For each item — name, HSN/SAC code, default price, GST rate (5%/12%/18%/28%), unit of measurement

Step 1 — Open a New GST Bill

Click New Invoice in your Khata Billing dashboard. Your business name, GSTIN, and address are pre-filled. The invoice number is automatically assigned as the next in sequence — GST requires consecutive numbering and Khata Billing handles this automatically.

Step 2 — Enter Customer Details

Search for an existing customer or enter new details:

  • Customer name and complete billing address
  • Customer's state — this determines whether CGST+SGST or IGST applies
  • Customer's GSTIN — mandatory for B2B invoices to allow ITC claim

Once you enter the state, Khata Billing automatically sets the correct tax type for every line item.

Step 3 — Add Items to the GST Bill

Search your product catalogue and add each item:

  • Select product — HSN code, GST rate auto-filled from your catalogue
  • Enter quantity
  • Unit price auto-fills from saved price (edit if different for this bill)
  • Tax amount calculates automatically
  • Add discount if applicable — GST recalculates on net value

Step 4 — Review and Generate

The invoice summary shows: taxable value, CGST+SGST or IGST breakdown, grand total in figures, and total in words (auto-generated — this is a mandatory GST requirement). Review and click Save Invoice.

Step 5 — Share the GST Bill

Your GST bill is ready. Share it:

  • WhatsApp: One tap — bill delivered to customer's phone as PDF immediately
  • Download PDF: Save to your device for records or email attachment
  • Print: Print from the PDF if a physical copy is needed

Making a GST bill online for your small business takes under 3 minutes with Khata Billing — and every bill is perfectly formatted, correctly taxed, and instantly shareable. Free, unlimited, and ready right now.

Start at khatabilling.com and create your first GST bill online in the next 5 minutes.

Frequently Asked Questions

How do I make a GST bill online for my small business?

Sign up for free at khatabilling.com, add your GSTIN and business details, add your products with HSN codes, click New Invoice, select customer, add products — GST is auto-calculated. Download as PDF or share via WhatsApp. Total time: under 3 minutes.

Can I make a GST bill online for free in India?

Yes. Khata Billing lets you create unlimited GST-compliant bills online for free. No credit card, no invoice limit, no watermarks on PDF.

What is the correct format for a GST bill?

A GST bill must include: supplier GSTIN and address, invoice number and date, buyer details (GSTIN for B2B), HSN/SAC codes, item description and quantity, taxable value, GST rate and amount (CGST+SGST or IGST), total in figures and words.

Is an online GST bill legally valid in India?

Yes. A digitally generated GST invoice is completely valid under the GST Act. The invoice format must meet the requirements of the Act — which Khata Billing ensures automatically.