I finally got my GSTIN, what do I need to set up before my first invoice goes out?
First, validate your bank account on the GST portal within 30 days (or before your first GSTR-1/IFF filing), an unvalidated account can get your GSTIN suspended. Then set up a compliant invoice format (GSTIN, HSN code, tax breakup) in whatever billing tool you're using, and put a return-filing cadence on your calendar, GSTR-1 and GSTR-3B, monthly or quarterly depending on your scheme. A short video walkthrough of the actual filing screens is worth 20 minutes before your first return is due, since the portal's UX isn't intuitive on a first pass.
Go deeper
16 resources, 11 India-specific, 15 link-checked.
▶️ Video
✓ Link checkedIndiaFreeBeginner
Twenty minutes of watching someone actually click through the filing screens beats reading about them, and it matches the portal's current layout.
This is the actual GSTN advisory behind the 30-day rule, straight from the regulator rather than a paraphrase, so you know exactly what triggers suspension and how to undo it.
The official step-by-step manual for the exact screen you will be on when you add your bank account, so you are not guessing your way through the portal's UI on day one.
The clearest field-by-field breakdown of what Rule 46 actually requires, with the HSN-digit rule spelled out by turnover slab so a brand-new business knows exactly what applies to it.
The contrarian case, worth reading precisely because it argues composition can protect early cash flow. Stress test our 'skip it' advice against this before you decide, not after.
Worth a skim even at invoice-zero, since a DPIIT-recognized D2C startup may qualify for GST and income-tax carve-outs that change what you actually owe from day one.
Consolidates every startup-specific tax benefit (income tax holiday, GST exemptions for recognized incubatees, ESOP deferral) in one government document.
Notes GST exemption for recognized incubatee services up to 50 lakh turnover for three years, subject to conditions.
Published May 2026, so it reflects the current rules rather than older scheme documents.
Zooms out from the single invoice to the bookkeeping system it feeds into, so your first invoice lands in a set of books that is actually usable at tax time.
The authoritative government HSN/SAC lookup, worth cross-checking against a third-party finder when a rate is ambiguous. Listed as canonical; the portal blocks automated fetches so we couldn't machine-verify the exact deep link.
A single glance-able calendar to put your GSTR-1/GSTR-3B dates straight into your own calendar instead of hunting through separate advisories every month.
The rare resource that sequences the tasks in order instead of listing rules alphabetically, so you know what to do this week versus what to set up as a recurring habit.
If you want compliant invoices and eventual e-filing from one tool rather than stitching together a billing app and a separate CA workflow, the free tier is enough for a brand's first year.
If your D2C brand plans to sell outside India too, this is the cleanest mental model for treating tax registration as a repeatable checklist rather than a one-off GST task.
