Is Ozydo really free?

Yes. Ozydo's free plan lets you create 5 invoices and 3 estimates every month at zero cost, forever. No credit card is required. The Pro plan (₹199/month) removes the monthly limits and adds unlimited invoices, premium PDF templates, GSTR-1 export, and priority support.

How do I create a GST invoice for free in India?

Sign up free at ozydo.com, add your GSTIN in settings, create a new invoice, add your client and line items, choose the GST rate (5%, 12%, 18%, or 28%), and tap Send. The PDF invoice is generated instantly with CGST/SGST or IGST calculated automatically. Share via WhatsApp or email.

What is the mandatory format for a GST invoice in India?

A valid GST tax invoice must include: supplier name, address, and GSTIN; unique sequential invoice number; invoice date; recipient name, address, and GSTIN (for B2B); HSN/SAC code; description of goods or services; taxable value; GST rate; CGST and SGST or IGST amounts separately; place of supply; and total value in words and figures.

Can I send a GST invoice on WhatsApp?

Yes. Ozydo generates a professional GST invoice PDF and lets you share it directly on WhatsApp with one tap — without downloading and re-uploading the file. This is the fastest way to send invoices to clients in India.

What is the difference between CGST, SGST, and IGST?

CGST (Central GST) and SGST (State GST) apply to intra-state sales — within the same state. They are each half of the total GST rate (e.g., 18% GST = 9% CGST + 9% SGST). IGST (Integrated GST) applies to inter-state sales — between two different states — and equals the full rate.

Do freelancers need to charge GST on invoices?

Only if your annual service income exceeds ₹20 lakh (₹10 lakh in some North-East states). Below this threshold, you do not need to register for GST and can invoice without charging GST. Above the threshold, GST registration is mandatory and you must charge 18% GST on most services.

What is the best free invoice app for small businesses in India?

Ozydo is designed specifically for Indian small businesses — it creates GST-compliant invoices in 30 seconds, shares them via WhatsApp, adds a UPI QR code for instant payment, and supports Hindi language. The free plan includes 5 invoices/month with no credit card required.

How do I collect payment via UPI on an invoice?

Add your UPI ID (e.g., yourname@okaxis) in your Ozydo business settings. Every invoice you create will automatically include a UPI QR code and direct payment links for GPay, PhonePe, and Paytm. Clients scan the QR or tap the link to pay instantly.

Free GST Invoice App for Chennai Businesses

From T. Nagar traders to IT freelancers — billing made simple. Create professional GST invoices in 30 seconds, share on WhatsApp, and collect UPI payments — completely free.

Get Started Free →See Plans

✓ No credit card✓ Works offline✓ WhatsApp PDF sharing✓ UPI QR on every invoice

Why Chennai businesses choose Ozydo

Everything you need to invoice professionally

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WhatsApp PDF sharing

Tap once to share your GST invoice PDF directly on WhatsApp — a pre-filled professional message is included. Preferred by Chennai traders and clients alike.

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UPI QR on invoice

Add your UPI ID once — a scan-to-pay QR code is auto-printed on every invoice PDF. Clients in Chennai pay via PhonePe, GPay, or Paytm instantly.

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GST auto-calculation

Tamil Nadu GST code is 33. Intra-state invoices automatically show CGST 16% + SGST 16%. No manual calculations — ever.

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Works on mobile

Ozydo is a mobile-first PWA — no app download needed. Install it from your browser on Android or iPhone and invoice clients from anywhere in Chennai, even offline.

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Who uses Ozydo in Chennai?

IT Professionals

Create GST invoices with SAC codes in 30 seconds. Works on your phone at any time.

Garment Exporters

Create export invoices in INR or foreign currency. Zero-rated GST for international buyers.

Consultants

Professional GST invoices for B2B clients who need proper tax documentation for ITC claims.

Auto Ancillary Suppliers

HSN-coded invoices for components and assemblies. Support for multi-rate GST per item.

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GST for Chennai, Tamil Nadu

Businesses in Chennai, Tamil Nadu use state GST code 33. Intra-state supplies attract CGST 16% + SGST 16%. Ozydo auto-detects this based on your registered state and your client's billing address — no manual configuration needed.

State Code: 33CGST 16% + SGST 16% (intra-state)IGST for inter-state supplies

How It Works

Create your first invoice in under 2 minutes

No credit card, no app download. Visit ozydo.com on your Android or iPhone and sign up in 30 seconds.

Set up your business profile

Add your Chennai business name, address, GSTIN (state code 33), logo, and UPI ID. Done once — applies to every invoice.

Create a new invoice

Add your client's details, list your services or products with HSN/SAC codes, and select the GST rate. CGST and SGST are calculated automatically.

Share on WhatsApp or download PDF

Tap the WhatsApp button — a professional PDF is generated and a pre-filled message opens. Your Chennai client receives it in seconds.

FAQ

Frequently asked questions

Is there a free GST invoice app for Chennai businesses?

Yes — Ozydo is completely free to start for Chennai businesses. Create up to 5 GST invoices per month at no cost. Upgrade to Pro (₹199/month) for unlimited invoices. No credit card required. Works on any Android or iPhone browser.

What is the GST state code for Chennai, Tamil Nadu?

The GST state code for Tamil Nadu is 33. Intra-state supplies in Chennai attract CGST 16% + SGST 16%. For inter-state supplies, IGST applies instead. Ozydo auto-detects the correct tax split based on your and your client's addresses.

Can I send invoices on WhatsApp in Chennai?

Yes. Ozydo is built for WhatsApp-first invoicing — popular with Chennai traders and freelancers. After creating your invoice, tap the WhatsApp button. It opens WhatsApp with a pre-filled payment message and your GST invoice PDF attached. Your client receives it instantly.

Start invoicing free in Chennai today

Join thousands of Chennai businesses who use Ozydo to create professional GST invoices in 30 seconds — free forever.

Create Your Free Account →

No credit card. No download. Works on any phone.