GST Invoices That Split CGST, SGST & IGST Correctly, Automatically
Set your state once, and BillNama applies the right GST split CGST/SGST for in-state sales, IGST for interstate with HSN/SAC codes included.
38,000+Businesses billing
84,000+Invoices generated
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What Is a GST Invoice?
A GST invoice applies India’s Goods and Services Tax correctly to what you’re billing, splitting it into CGST and SGST for in-state sales or IGST for interstate sales, along with the right HSN or SAC code for what you sell. BillNama applies this automatically based on your business’s state and your client’s state.
GST vs. VAT vs. sales tax: GST is India’s multi-stage tax, split between central and state components depending on whether a sale is in-state or interstate; VAT works similarly in the UK, EU, and Gulf; US sales tax is a single point-of-sale tax. BillNama applies whichever format matches your business’s country.
Everything GST Invoicing Needs
Set your state once, and every invoice after that splits GST correctly, with the right codes attached.
CGST/SGST for In-State Sales
Bill a client in your own state with the correct central and state GST split.
IGST for Interstate Sales
Bill a client in another state with the correct integrated GST rate applied.
HSN/SAC Codes Included
Attach the right HSN or SAC code for goods or services on every invoice.
No Manual GST Lookups
Skip checking rate tables or splitting the tax between CGST and SGST by hand.
Works With Multi-Currency & Recurring Invoices
GST calculates correctly whether it’s a one-time bill or a recurring cycle.
Clear GST Breakdown
Every invoice shows CGST, SGST, or IGST as its own line, not folded into the total.
Billing With GST in 3 Steps
1
Set Your State
Add your business’s state once in your BillNama settings.
2
Bill Normally
Create the invoice exactly as you always would — nothing extra to configure.
3
GST Splits Itself Correctly
CGST/SGST or IGST is applied and shown clearly, based on where your client is.
Built for Indian Businesses Billing With GST
Freelancers & Consultants
Bill clients in your own state or across India with the correct GST split.
Retail & Service Businesses
Apply CGST/SGST correctly on every local sale without checking rate tables.
Manufacturers & Wholesalers
Attach the correct HSN code for goods sold, alongside the right GST rate.
Agencies Billing Across States
Switch between CGST/SGST and IGST automatically based on the client’s state.
More Than GST — Run Your Whole Billing Cycle
GST Invoices connects directly to the rest of BillNama, so tax-correct billing works the same way as everything else.
Invoicing & BillingBill with the correct GST on every invoice
Recurring InvoicesGST recalculates correctly every cycle
Quotations & EstimatesQuote with GST included before you bill
Proforma InvoicesPreview GST before the order ships
ExpensesTrack deductible costs alongside GST sales
Customer LedgerSee GST-inclusive balances per client
Reports & EarningsSee GST collected in your reports
Multi-Currency InvoicesGST works alongside foreign currencies
Invoice SignaturesGet sign-off on a GST-correct invoice
Send Invoice on WhatsAppDeliver GST-correct invoices where clients reply
US Sales Tax InvoicesState-correct tax for US clients
VAT InvoiceUK, EU & Gulf VAT formats built in
Recurring InvoicesGST recalculates correctly every cycle
Quotations & EstimatesQuote with GST included before you bill
Proforma InvoicesPreview GST before the order ships
ExpensesTrack deductible costs alongside GST sales
Customer LedgerSee GST-inclusive balances per client
Reports & EarningsSee GST collected in your reports
Multi-Currency InvoicesGST works alongside foreign currencies
Invoice SignaturesGet sign-off on a GST-correct invoice
Send Invoice on WhatsAppDeliver GST-correct invoices where clients reply
US Sales Tax InvoicesState-correct tax for US clients
VAT InvoiceUK, EU & Gulf VAT formats built in
Why Get GST Right With BillNama
- CGST/SGST and IGST applied correctly based on your client’s state
- HSN and SAC codes included, not left for you to look up
- Works the same on one-time and recurring invoices
- Included free — no extra fee to bill with correct GST
Frequently Asked Questions
What is a GST invoice?
A GST invoice applies India’s Goods and Services Tax correctly to a sale, splitting it into CGST and SGST for in-state sales or IGST for interstate sales.
What’s the difference between CGST, SGST, and IGST?
CGST and SGST apply together on sales within your own state, split between central and state government. IGST applies as a single integrated rate on sales to another state.
Does BillNama add HSN or SAC codes automatically?
Yes. BillNama attaches the correct HSN code for goods or SAC code for services on your invoices.
Is GST invoicing free on BillNama?
Yes. Correct GST calculation is included free within your normal invoicing allowance, with no separate fee or limit.
Does BillNama handle GST e-invoicing (IRN) requirements?
BillNama generates GST-compliant invoices with the correct tax split and HSN/SAC codes. If your business is required to generate e-invoices with an IRN, check with your accountant on your specific e-invoicing obligations.
Can I apply GST alongside discounts?
Yes. GST calculates correctly even when a discount is applied to the same invoice.
Does GST show as a separate line on the invoice?
Yes. CGST, SGST, or IGST appears as its own clearly labeled line, not folded into the total.
Can I use this for recurring invoices too?
Yes. The correct GST split is recalculated automatically on every recurring invoice cycle.
Can I bill interstate clients correctly?
Yes. BillNama switches to IGST automatically when your client is in a different state from your business.
Can I see GST collected in my reports?
Yes. GST collected is reflected in your Reports & Earnings automatically.
Ready to Bill With the Right GST Every Time?
Join 38,000+ businesses using BillNama to bill with correct GST — free forever.