How to choose a CRM with GST invoicing for an Indian business (2026 checklist)

Most growing Indian businesses run sales in one tool, invoicing in another and customer support in a third, usually with a spreadsheet holding it all together. A CRM with built-in GST invoicing joins the most important link: the deal you win and the invoice you raise. This checklist covers what to look for, what to ask vendors, and the compliance points that are easy to miss.

Why combine CRM and invoicing at all?

When sales and billing live in separate systems, the same customer is typed in twice, GSTINs and addresses drift out of sync, and nobody can easily answer “what did this customer buy, and have they paid?” With one customer record:

• won deals turn into correct invoices without re-typing
• sales can see outstanding payments before promising more
• support knows the customer’s history
• management sees pipeline, revenue and receivables in one place

The checklist

1. GST-compliant invoices

• GSTIN for you and your business customers, validated
• HSN or SAC codes on line items
• Correct tax split: CGST and SGST for intra-state supplies, IGST for inter-state, based on the place of supply
• Credit and debit notes, not just invoices
• Invoice numbering that follows GST rules, with separate series if you need them
• Branded templates with your logo, bank details and terms

2. E-invoicing readiness

Under current rules, businesses with aggregate turnover above ₹5 crore in any financial year since 2017-18 must generate e-invoices for B2B supplies. That means registering each invoice on the Invoice Registration Portal (IRP) to receive an IRN and a signed QR code. Businesses with turnover of ₹10 crore or more must also report invoices to the IRP within 30 days of the invoice date, or the IRP will reject them.

If you are above, or approaching, the threshold, ask whether the CRM generates IRNs directly or integrates with your e-invoicing provider or accounting software. Thresholds have been lowered several times, so plan for it even if you are below today.

3. Getting paid

• UPI collection to your own UPI ID, with payments matched to invoices
• Payment reminders for overdue invoices
• Receivables view: who owes what, and for how long
• Recurring invoices for retainers, subscriptions and AMCs

4. Sales features your team will actually use

• A visual pipeline that matches your sales stages
• Tasks and reminders with owners and due dates
• Bookings for demos, site visits or appointments, if your business runs on them
• Channel partner management, if you sell through agents or dealers, including commissions and TDS under section 194H where it applies
• WhatsApp and email follow-ups from the customer record

5. Roles, data and security

• Role-based access, so each person sees only the customers, prices and numbers they should
• Audit trail of who changed what
• Data location: ask where your data is hosted; many Indian businesses prefer India-hosted data
• Export: you should be able to export all your data at any time

6. Integrations

• Your accounting software, so invoices and payments sync to your books
• Website forms and ad platforms, so leads arrive with their source
• An API for anything custom you will need later

7. Cost and adoption

• Per-user pricing and what is included at each plan, especially automations, storage and users
• Implementation and migration support: the biggest reason CRMs fail is that teams never fully move in
• A free trial long enough to test your real workflow, not a demo

Questions to ask every vendor

1. Show me how a won deal becomes a GST invoice, with CGST, SGST or IGST applied correctly.
2. How do you handle e-invoicing (IRN and QR code) for businesses above the threshold?
3. Can customers pay by UPI, and are payments matched to invoices automatically?
4. Where is our data hosted, and can we export all of it?
5. Who will migrate our existing customers and invoices, and how long will it take?
6. What does it cost for our team size in year one, including implementation?

Red flags

• GST handled by “custom fields” instead of proper tax logic
• No clear answer on e-invoicing
• Data export only on request, or only on higher plans
• Implementation left entirely to you

A note on Skylor

Skylor is our own platform: CRM, tasks, GST invoicing and purchases, tickets and HR in one workspace, with AI built into every plan. We built it because we kept seeing the problems above. Use the checklist on any CRM you evaluate, including ours. If you choose Skylor, our team can implement it with you.

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Moving from spreadsheets or several tools? We migrate your data, configure your workflows and train your team. Talk to us about implementation.

E-invoicing thresholds and timelines are summarised from published 2026 guides, including Tally Solutions, Xflow and Milao GST, based on Notification 10/2023-Central Tax and the GSTN advisory of November 2024. Rules change; confirm the current position on the GST portal or with your tax adviser.