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Tax & Compliance·8 min read

GST Registration in India: When, How & What Happens Next

Get your GSTIN in 3–5 days when you're liable—or voluntarily—to claim ITC and invoice enterprises with confidence.

May 28, 2025

What you'll take away

  • Mandatory above ₹20L turnover (₹10L in special category states) or inter-state supply.
  • Voluntary registration unlocks input tax credit on B2B purchases.
  • GSTIN must match legal name on invoices and bank KYC.
  • Pelago files REG-01 and tracks ARN to certificate.

Do you need GST now?

E-commerce sellers, inter-state B2B, and brands crossing turnover thresholds must register.

B2C local-only under threshold may wait—but enterprise clients often demand your GSTIN on the PO.

Registration process

  • Apply on gst.gov.in with PAN, Aadhaar authentication, bank proof, address proof.
  • Track Application Reference Number (ARN).
  • Respond to department queries within timelines.
  • Receive GSTIN certificate—update invoices, contracts, and marketplaces.

Need GST registration?

We file, respond to queries, and set up your first GSTR-1/3B calendar.

Register for GST

Immediately after GSTIN

  • Issue GST-compliant invoices (HSN/SAC, place of supply).
  • File GSTR-1 and GSTR-3B per your frequency (monthly/quarterly).
  • Reconcile GSTR-2B with purchase books monthly.

Founder tip: Separate GST collected in accounting—it's not revenue.

Common rejection reasons

Address mismatch, inactive DIN, or trade name unlike legal name. Pelago pre-validates documents before submission to avoid 2-week delays.

Need GST registration?

We file, respond to queries, and set up your first GSTR-1/3B calendar.