Smart Billing Software for Any Business
From invoices to payments, inventory to reports - manage your business billing from one platform. 100% GST-compliant and built for Tamil Nadu businesses.
Everything You Need to Run Your Billing
Purpose-built features for Tamil Nadu businesses - from retail shops to service providers
Stock Management
Real-time inventory tracking, batch-wise stock, reorder alerts, and supplier management. Never run out of stock.
Payment Tracking
Track cash, UPI, card, and credit payments. Automatic payment reminders and receivables management.
GST Billing
Fast billing with automatic GST calculation, multiple payment modes, and instant receipt printing.
Invoice Templates
Professional invoice templates, quotations, delivery challans, and customizable formats with your business branding.
Customer Management
Customer profiles, purchase history, credit management, and loyalty tracking for repeat customers.
Reports & Analytics
Sales reports, profit margins, slow-moving items, GST reports, and daily/monthly summaries.
Perfect For Every Type of Billing
Whether you are a retail shop or a service business
Retail Shops
Fast billing, walk-in customers, stock alerts
Wholesale Traders
Bulk orders, dealer management, B2B billing
Service Providers
Professional services, time-based billing, contracts
Multi-Branch Chains
Multi-store, centralized inventory, reports
Why Tamil Nadu Businesses Choose OnePlaceHQ
100% GST Compliant
All invoices follow Indian GST regulations. Generate GSTR reports with one click.
Multi-Payment Support
Accept cash, UPI, cards, credit - all in one invoice. Split payments made easy.
Tamil + English Support
WhatsApp support in Tamil. Quick response from our Chennai team.
Works on Any Device
Tablet, phone, or computer. Cloud-based, access from anywhere.
Ready to Modernize Your Billing?
Join businesses across Chennai, Coimbatore, and Madurai who trust OnePlaceHQ for their daily billing operations.
Contact Us on WhatsAppQuick response in Tamil + English
GST Billing Guide for Indian Businesses
A practical reference for small business owners navigating GST invoicing, tax rates, and compliance requirements in India.
Understanding GST for Small Businesses
GST Registration Threshold
Every business in India must register for GST once its annual aggregate turnover crosses the prescribed threshold. For businesses that sell goods, the threshold is Rs 40 lakh. For service providers, the threshold is Rs 20 lakh. Special category states (such as the northeastern states, Himachal Pradesh, Uttarakhand, and Jammu & Kashmir) have lower thresholds: Rs 20 lakh for goods and Rs 10 lakh for services. Once your turnover crosses these limits in a financial year, GST registration becomes mandatory, and you must start issuing GST-compliant invoices.
Goods Sellers
Rs 40 lakh
Rs 20 lakh in special category states
Service Providers
Rs 20 lakh
Rs 10 lakh in special category states
GST Rate Structure
India uses a multi-tier GST rate structure. Different goods and services are taxed at different rates depending on their category. Here are the five main GST slabs with common examples for each:
| GST Rate | Category | Examples |
|---|---|---|
| 0% | Essential goods | Fresh fruits, vegetables, milk, rice, wheat, bread |
| 5% | Basic necessities | Packaged food items, sugar, tea, edible oil, transport services |
| 12% | Standard goods | Processed food, butter, ghee, furniture, mobile phones |
| 18% | Most services and goods | IT services, electronics, restaurant food (non-AC), financial services, stationery |
| 28% | Luxury and demerit goods | Luxury cars, pan masala, aerated drinks, AC restaurants in 5-star hotels |
CGST + SGST vs IGST
The type of GST applied depends on whether the transaction is within a single state or between two different states. For intra-state sales (buyer and seller in the same state), the GST is split equally into CGST (Central GST, collected by the central government) and SGST (State GST, collected by the state government). For inter-state sales (buyer and seller in different states), the entire GST amount is collected as IGST (Integrated GST) by the central government, which then distributes the state's share.
Example: Rs 1,000 item at 18% GST
Intra-state sale (within Tamil Nadu)
CGST: Rs 90 (9%)
SGST: Rs 90 (9%)
Total: Rs 1,180
Inter-state sale (Tamil Nadu to Karnataka)
IGST: Rs 180 (18%)
Total: Rs 1,180
The total amount paid by the buyer is the same in both cases. The difference is only in how the tax is split between central and state governments.
Worked Example: Creating a GST Invoice
Consider a retail stationery shop in Chennai selling to a local customer (intra-state sale within Tamil Nadu). The shop sells three items in a single invoice. Here is the complete GST calculation:
| Item | Rate | Qty | Taxable Value | GST % | CGST | SGST |
|---|---|---|---|---|---|---|
| Notebook | 50.00 | 10 | 500.00 | 12% | 30.00 | 30.00 |
| Pen Set | 200.00 | 5 | 1,000.00 | 18% | 90.00 | 90.00 |
| Calculator | 800.00 | 2 | 1,600.00 | 18% | 144.00 | 144.00 |
Note on HSN codes: HSN (Harmonized System of Nomenclature) codes classify goods for GST purposes. Businesses with annual turnover above Rs 5 crore must mention 4-digit HSN codes on invoices. Those with turnover between Rs 1.5 crore and Rs 5 crore must use 2-digit HSN codes. Below Rs 1.5 crore, HSN codes are optional but recommended for accurate classification. For example, notebooks fall under HSN 4820, pens under HSN 9608, and calculators under HSN 8470.
Types of GST Documents
Under the GST regime, businesses must issue specific types of documents depending on the nature of the transaction. Each document serves a different purpose and has its own set of mandatory fields.
Tax Invoice
Issued for taxable supply of goods or services. This is the most common GST document. Required fields include supplier's GSTIN, invoice number, date, HSN/SAC codes, item-wise tax breakup (CGST, SGST, or IGST), and the buyer's GSTIN if registered.
Bill of Supply
Issued instead of a tax invoice when the supplier is a composition dealer or the goods/services are exempt from GST. No tax breakup is shown because no GST is being collected. The document must still include supplier details, item descriptions, and total value.
Credit Note
Issued when goods are returned by the buyer, or when the taxable value or tax charged in the original invoice needs to be reduced. For example, if you overcharged a customer or they returned defective items. The credit note must reference the original invoice number and date.
Debit Note
Issued when the tax charged in the original invoice is less than the actual tax payable, or when the taxable value needs to be increased. This can happen due to a pricing error or supplementary charges. Like the credit note, it must reference the original invoice.
Delivery Challan
Used when goods are transported without an actual sale taking place. Common scenarios include goods sent for job work (manufacturing or processing by a third party), goods sent on approval basis (where the buyer decides whether to keep them), goods sent for exhibitions or displays, and goods transferred between branches of the same business. A delivery challan is not a sale document, so it does not include GST calculations, but it must describe the goods, their quantity, and the reason for transportation.
GST Composition Scheme
The Composition Scheme is a simplified GST compliance option designed for small businesses. Instead of charging GST on each invoice and filing monthly returns, composition dealers pay a fixed percentage of their turnover as tax and file returns quarterly. This significantly reduces the compliance burden for small businesses that primarily serve local customers.
Eligibility and Tax Rates
| Business Type | Turnover Limit | Composition Tax Rate |
|---|---|---|
| Manufacturers | Rs 1.5 crore | 1% of turnover |
| Traders (goods sellers) | Rs 1.5 crore | 1% of turnover |
| Restaurants (non-AC, non-alcohol) | Rs 1.5 crore | 5% of turnover |
| Service providers (e.g. gyms, salons) | Rs 50 lakh | 6% of turnover |
Key Restrictions
- Cannot collect GST from customers. The composition tax is paid directly from the dealer's margin.
- Cannot claim Input Tax Credit (ITC) on purchases. The GST paid on raw materials or supplies cannot be offset against the composition tax.
- Cannot make inter-state sales. All sales must be within the same state.
- Cannot sell through e-commerce operators like Amazon or Flipkart.
- Must issue a "Bill of Supply" instead of a "Tax Invoice" since no GST is being collected.
Filing Requirements
Composition dealers file CMP-08 quarterly (instead of monthly GSTR-1 and GSTR-3B). They also file an annual return (GSTR-4) by April 30 of the following financial year. This means only 5 filings per year compared to 24+ for regular GST taxpayers.
Best suited for: Small retail shops, local grocery stores, neighbourhood bakeries, small manufacturers, and service providers who sell only within their state and do not need to claim input tax credits. Industry-specific billing is available for restaurants, gyms, and trusts & NGOs.
Frequently Asked Questions
Can I manage multiple payment methods in one invoice?
Yes! OnePlaceHQ supports split payments - combine cash, UPI, card, and credit in a single invoice. Track partial payments and outstanding balances easily.
Does it support inventory with variants (size, color)?
Absolutely! Manage products with multiple variants like size, color, or unit. Track stock separately for each variant with batch-wise pricing.
Is GST filing easy with this software?
Yes, 100% GST compliant. All invoices include proper GST breakdown. You can export GSTR-1 and GSTR-3B data directly from the system.
Can I use this for my multiple branches?
Yes! OnePlaceHQ supports multi-branch businesses with centralized reporting. Track inventory and sales across all your locations from one dashboard.
What is the GST registration threshold for small businesses?
The GST registration threshold is Rs 40 lakh annual turnover for businesses that sell goods, and Rs 20 lakh for service providers. Special category states (such as northeastern states, Himachal Pradesh, and Uttarakhand) have lower thresholds: Rs 20 lakh for goods sellers and Rs 10 lakh for service providers. Once your turnover crosses these limits, GST registration becomes mandatory.
What is the difference between CGST, SGST, and IGST?
CGST (Central GST) and SGST (State GST) apply to sales within the same state. The GST rate is split equally between them — for example, an 18% GST item has 9% CGST and 9% SGST. IGST (Integrated GST) applies to inter-state sales, where the full rate goes to the central government. The total GST amount paid by the buyer is the same regardless of whether it is intra-state or inter-state.
Do I need HSN codes on my invoices?
It depends on your turnover. Businesses with annual turnover above Rs 5 crore must include 4-digit HSN codes on their invoices. Businesses with turnover between Rs 1.5 crore and Rs 5 crore must use 2-digit HSN codes. If your turnover is below Rs 1.5 crore, HSN codes are optional but recommended for accurate goods classification and smoother GST filing.
What is the Composition Scheme and should I use it?
The Composition Scheme is a simplified GST option for small businesses with turnover under Rs 1.5 crore (Rs 50 lakh for service providers). You pay a fixed tax rate — 1% for manufacturers and traders, 5% for restaurants, 6% for service providers — instead of charging GST on each invoice. You file quarterly returns (CMP-08) instead of monthly GSTR-1 and GSTR-3B. The tradeoffs: you cannot collect GST from customers, cannot claim Input Tax Credit, and cannot make inter-state sales. It works best for small local shops and businesses whose customers do not need GST invoices.
Can I generate e-invoices from this software?
e-Invoicing is mandatory for businesses with annual turnover above Rs 5 crore. OnePlaceHQ generates GST-compliant invoices that include all the required fields for e-invoicing: supplier and buyer GSTIN, HSN/SAC codes, item-wise tax breakup, invoice reference number, and proper tax categorization. The invoices meet the format requirements specified by the GST Network (GSTN) for e-invoice generation.