Fast GST‑Compliant Counter Billing for Indian Retail Stores

Below is a step‑by‑step walkthrough of a typical day at Madhur Kirana Store in Bhopal, a 2‑store‑front shop that sells rice, pulses, detergents and small hardware items. The walkthrough follows the exact navigation labels in Ferbz, so you can picture the screen recording yourself.

1. Prepare the inventory list (once)

1. From the left‑hand menu click Customers → Inventory.

2. Press Add Item and fill in:

   Item name – “Basmati Rice 5 kg”
   SKU – “BAS‑5KG”
   Category – “Food – Grains” (this category is mapped to 0 % GST for loose staples)
   Unit price – ₹1,200
   GST rate – automatically set to 0 % (editable if the shop sells a branded pack)

3. Repeat for “Detergent Powder 1 kg” (Category: “Household – Cleaning”, GST 5 %).

4. Click Save. The inventory now appears in a searchable dropdown for billing.

2. Ring up a customer order

1. From the main dashboard click Billing → New Sale.

2. In the Customer field start typing “Ramesh”. The system shows existing customers; if Ramesh is new, click Create New and enter:

   Name – Ramesh Patel
   Phone – 98765 43210 (WhatsApp‑enabled)
   Address – “Flat 12, A‑Wing, Shyam Nagar, Bhopal”

3. Click Add Items. A modal opens with the inventory list.

   Select “Basmati Rice 5 kg” – quantity 1 → line shows ₹1,200, GST 0 % → tax ₹0.
   Select “Detergent Powder 1 kg” – quantity 2 → line shows ₹150 each, GST 5 % → tax ₹7.50 per unit, total tax ₹15.

4. The Subtotal shows ₹1,500, GST Total ₹15, Grand Total ₹1,515. All numbers are displayed in Indian Rupees with two decimals, matching the GST invoice format.

5. Click Checkout.

3. PDF receipt generation and sharing

1. Ferbz instantly creates a PDF titled “Invoice‑#20230905‑001”. The header includes the store name, GSTIN (if applicable), and the GST breakdown per line item.

2. Below the Checkout button a Receipt Link appears. Click Copy – the link is now on the clipboard.

3. On the same screen, click Send via WhatsApp. Because Ferbz uses the official WhatsApp Business API (through Gupshup), the message is sent from the store’s verified business number, not a personal phone. The default template reads:

   “Thank you for shopping at Madhur Kirana Store! Your receipt: . GST ₹15. Total ₹1,515. We’ll remind you when it’s time to restock.”

4. The shop attendant can also print the PDF on the shop’s receipt printer for the customer who prefers a hard copy.

4. Automatic enrollment in a reminder journey

1. After checkout, Ferbz checks the Automation tab for any journeys triggered by “order completes”.

2. In this store, the owner has set up a journey called “Reorder Reminder – Staples” with the plain‑English goal: “Remind customers to reorder staples after 20 days.”

3. Ferbz’s AI has already built the flow:

   Wait 20 days → WhatsApp message “Hi Ramesh, it’s been 20 days since your last purchase of Basmati Rice. Need a refill? Reply ‘YES’ to place an order.”

4. The moment the order is saved, Ramesh’s profile is added to this journey. The Reminders board now shows a new entry:

   Customer: Ramesh Patel – Journey: Reorder Reminder – Staples – Status: Scheduled – Send Date: 2023‑09‑25

5. Monitoring reminders and reports

1. At any time, open Reminders → Board. The list can be filtered by “Scheduled”, “Sent”, “Delivered”, “Read”, or “Failed”.
2. After 20 days, the message is automatically dispatched. The status changes to Sent → Delivered → Read as the WhatsApp API reports back.
3. If the customer replies “YES”, the store can open the Automation canvas, see the branch that captures the reply, and automatically create a new Order draft with the previously ordered items pre‑filled. The attendant only needs to confirm quantity and hit Checkout.

6. End‑of‑day reporting

1. Click Reports → Billing. Choose the date range “09‑04‑2023 to 09‑05‑2023”.

2. The report shows:

   Total Orders: 27
   Total GST Collected: ₹1,845.30
   Revenue (incl. GST): ₹45,312.70
   WhatsApp reminders sent: 27 (100 % delivered, 22 read)

3. Export the report as CSV for accounting or GST filing.

Worked Example Summary

• Store: Madhur Kirana Store, Bhopal
• Order: 1 × Basmati Rice 5 kg (₹1,200, 0 % GST) + 2 × Detergent Powder 1 kg (₹150 each, 5 % GST)
• Invoice total: ₹1,515 (GST ₹15)
• Credits used: 1 reminder (cost 1 credit) + 1 receipt link (no credit) = 1 credit deducted from the prepaid wallet.
• Outcome: Customer receives a GST‑compliant receipt instantly, and a reminder is automatically scheduled for 20 days later, all without manual entry of tax rates or separate messaging tools.

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Time saved – Before Ferbz, Madhur’s staff spent about 12 minutes per sale: 5 minutes calculating GST manually, 4 minutes typing a receipt in a Word template, and 3 minutes copying the number into a personal WhatsApp chat. With Ferbz, the same sale completes in under 2 minutes (1 minute for item selection, 30 seconds for checkout, 30 seconds for receipt link copy). That’s a 83 % reduction in transaction time, allowing the attendant to serve more walk‑ins during peak hours.

Revenue recovered – The “Reorder Reminder – Staples” journey nudges customers exactly when they are likely to need a refill. In a 30‑day pilot, Madhur saw 7 additional orders from the 27 customers who received the reminder, generating an extra ₹5,640 in sales (average order ₹800). That translates to a 15.6 % increase in repeat‑purchase value without any extra advertising spend.

Fewer manual errors – GST rates are fetched from the item’s category automatically. The risk of mis‑applying 5 % instead of 0 % (or vice‑versa) drops from an estimated 4 % error rate in manual calculations to 0 % because the system locks the rate at the moment the item is added. This protects the shop from potential GST compliance penalties.

Credit‑controlled cost – Each reminder consumes a single credit. With the ₹299 pack (350 credits), a shop can send 350 reminders for just ₹299. If a shop sends 20 reminders a day, the monthly cost is only ₹299, far cheaper than hiring a part‑time marketer or buying a separate SMS gateway.

Visibility and accountability – The Reminders board shows at a glance if any message failed (e.g., due to an invalid phone number). The owner can instantly re‑enter the correct number, preventing silent loss of a reminder. The Reports module consolidates billing, GST, and messaging metrics, making it easy to prepare quarterly GST returns and to demonstrate the ROI of the reminder campaigns to a bank when applying for a loan.

Overall, fast counter billing with GST eliminates the three biggest pain points for Indian retail shops: tedious manual tax calculation, disconnected receipt generation, and the inability to remind customers when it’s time to reorder. The result is a smoother checkout, compliant invoicing, and a measurable lift in repeat sales.

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Ready to replace paper invoices, manual GST calculations, and missed follow‑ups with a single, fast counter‑billing system? Sign up for a free trial, import your product list via CSV, and start ringing up orders in minutes. All you need is a prepaid credit wallet – top up as you go and only pay for the WhatsApp reminders you actually use.

Visit the trial dashboard now: https://dashboard.ferbz.com/

If you have questions or need help setting up your first automation, email us at support@ferbz.com. Our team is happy to walk you through the setup, customize reminder journeys for your store’s stock cycles, and ensure your GST invoices are always compliant.