GST billing software for Indian businesses

GST invoicing that files itself. e‑Invoice, e‑Way Bill and GSTR — built in.

Raise tax invoices with CGST/SGST/IGST calculated automatically, generate IRNs and e-Way Bills in one click, collect payments over UPI, and hand your CA GSTR-1, 3B and 2B that already match your books.

No credit card required Set up in 10 minutes Your data stays yours
billing.zeohq.com/app/sales-invoice

Sales Invoice

+ New Invoice
Sales this month
₹23,64,120
↑ 12% vs Aug
Outstanding
₹9,41,300
14 invoices
GST payable (Sep)
₹1,21,510
3B ready
InvoiceCustomerAmountTaxIRNStatus
SINV-26-0142Meridian Retail LLP₹34,456CGST+SGSTOK
SINV-26-0141Arvind Traders₹1,18,000IGSTOKUnpaid
SINV-26-0140Sunrise Garments₹62,540CGST+SGSTOKOverdue
SINV-26-0139Nexa Home Décor₹2,08,900IGSTOK
SINV-26-0138Bharat Uniforms₹45,120CGST+SGST—Draft
NIC e-Invoice readyIRN + signed QR on every B2B invoice
GSTR-1 · 3B · 2BPortal-ready JSON and auto-reconciliation
UPI & payment linksRazorpay, Stripe, Paytm and dynamic UPI QR
Your own private instanceIsolated database per business, exportable anytime
Everything a GST-registered business needs

Billing, compliance and books in one place

No separate GST tool, no month-end reconciliation marathon. Every invoice you raise is already part of your return.

Automatic GST calculation

CGST/SGST or IGST is applied from the customer's GSTIN state code and place of supply — no manual tax selection.

  • Preloaded HSN/SAC master with tax rates
  • GSTIN lookup auto-fills name & address
  • TDS/TCS withheld above thresholds

e-Invoice & e-Way Bill

Generate and cancel IRNs directly with the NIC/IRP; the signed QR prints on the PDF. e-Way Bills in single or bulk.

  • Part-A / Part-B, extend or cancel
  • Bulk generation for dispatches
  • Errors surfaced before submit

GSTR filing & 2B reconciliation

One-click GSTR-1 and 3B JSON for the offline tool or portal. GSTR-2B matched against purchase invoices to protect ITC.

  • Mismatch and missing-invoice reports
  • ITC eligibility flagged per line
  • CA-ready exports every period

Get paid faster

Every invoice carries a dynamic UPI QR pre-filled with the exact balance, plus Razorpay, Stripe or Paytm payment links.

  • Payments auto-matched to invoices
  • Recurring billing for retainers
  • Quotation → Proforma → Invoice → Credit note

WhatsApp & SMS delivery

Invoice PDFs and payment reminders go straight to the customer's phone on submit — with escalating dunning for overdue bills.

  • Official WhatsApp Business API
  • Reminder schedules per customer
  • Email templates on your domain

Books your CA can trust

Full double-entry ledger with bank reconciliation, receivables/payables aging and multi-warehouse stock valuation.

  • 0–30 / 31–60 / 61–90 / 90+ day buckets
  • Batch & serial tracking, FIFO valuation
  • Role-based access for accountants
How it works

From invoice to filed return in three steps

The GST work happens while you invoice — not at the end of the month.

1

Create the invoice

Pick the customer and items. HSN/SAC codes, tax rates and the place of supply are filled from your masters.

2

Submit — GST does the rest

CGST/SGST or IGST is split automatically, the IRN and QR are generated, and the e-Way Bill is raised if goods are moving.

3

Collect and reconcile

The invoice reaches the customer on WhatsApp with a UPI QR. Payments and GSTR-2B purchases reconcile as they land.

Inside the product

Know your GST liability and your receivables at a glance

Two views of the same books — what you owe the government, and what your customers owe you.

GST summarySeptember 2026
Output GST
₹4,18,220
ITC available
₹2,96,710
Net payable
₹1,21,510
  • GSTR-1 — September
  • GSTR-3B — September
  • GSTR-2B reconciliation7 of 221 to review
Liability and input credit for the period, reconciled against GSTR-2B as vendors file.
Receivables agingOutstanding ₹9,41,300
0–30 days
₹6.1L
31–60
₹2.8L
61–90
₹1.1L
90+
₹0.6L
Who owes what and for how long, with WhatsApp/SMS reminders queued automatically.
Pricing

Simple plans that grow with your business

Every plan includes automatic GST calculation, HSN/SAC master and GSTR-1/3B export. Upgrade for e-Invoicing, e-Way Bills and more users.

Illustrative pricing — final plans to be confirmed.

Starter

For freelancers and single-owner businesses getting GST-registered.

₹999/ month
  • Up to 100 invoices per month
  • 1 user, 1 GSTIN
  • Automatic CGST/SGST/IGST
  • GSTR-1 & 3B export
  • UPI QR on invoices
Start free trial

Enterprise

For groups running multiple GSTINs, warehouses or brands.

Custom
  • Unlimited users & companies
  • Multi-warehouse inventory
  • CA / accountant portal access
  • Dedicated onboarding & support
  • Custom integrations
Talk to us
FAQ

Common questions

Is ZeoHQ Billing compliant with mandatory e-Invoicing?

Yes. IRNs are generated through the NIC Invoice Registration Portal and the signed QR code is printed on every B2B invoice PDF. Cancellation within the allowed window is supported from the same screen.

Do I need my own GSP account?

e-Invoice and e-Way Bill APIs are accessed through a GST Suvidha Provider. We'll help you connect your GSP credentials during onboarding; the software handles the API calls after that.

Can my CA access the books?

Yes. Add your accountant as a user with a read-only or accountant role. They can pull GSTR-1/3B/2B exports, aging and ledger reports directly without you sending files each month.

Can I migrate from Tally, Excel or another billing app?

Customers, items, opening balances and outstanding invoices can be imported from spreadsheets. We provide templates and assist with the first import.

Who owns my data?

You do. Each business runs on its own isolated database, and you can export your complete data at any time.

Stop reconciling your invoices with the GST portal by hand.

Set up your business in minutes and raise your first compliant invoice today.