Sikkim GST & compliance
Sikkim is a state with GST state code 11. It's a special-category state under the CGST Act, so GST registration kicks in at a lower threshold. Sikkim levies Professional Tax.
Sikkim at a glance
| Field | Value |
|---|---|
| Type | State |
| Capital | Gangtok |
| GST state code | 11 (every Sikkim GSTIN starts with this) |
| Special-category state? | Yes — lower GST thresholds apply |
| GST registration threshold | ₹20 lakh for goods (₹10 lakh for services) — special-category state under CGST Act §22(2), so the threshold is half the national default |
| Professional Tax? | Yes — annual cap ₹2500 |
| Intra-state GST split | CGST + SGST in equal halves of the rate |
Sikkim-specific notes
- Special-category state under CGST Act §22 — GST registration threshold is ₹20 lakh for goods (₹10 lakh for services) instead of the standard ₹40 lakh / ₹20 lakh.
- Professional Tax applies — Sikkim Tax on Professions, Trades, Callings and Employments Act, 2006.
- Article 371(F) protections — separate land and resident law regimes.
Authoritative source
Sikkim state-level compliance is administered by the Sikkim Commercial Taxes Division →. Use it for registration, advance rulings, Professional Tax slabs (where applicable), and state-specific notifications. GST returns are filed centrally at gst.gov.in →.
How HelloBooks does this
HelloBooks handles Sikkim compliance end-to-end — GSTIN validation against state code 11, automatic CGST + SGST split on intra-state supplies, Professional Tax deductions on payroll, and direct GSTR filing.
- 1
Configure your Sikkim GST profile
Add your Sikkim GSTIN (state code 11), trade name, and PAN in Settings → Taxes. HelloBooks validates the state code and the embedded PAN automatically. Mark your registration type (Regular, Composition, SEZ, Casual, Non-Resident, Input Service Distributor).
- 2
Add Sikkim place of supply on every transaction
Tag the place of supply on every invoice and bill. When the customer's place of supply is Sikkim (and your registration is also Sikkim), HelloBooks charges CGST + SGST in equal halves of the rate. Inter-state supplies trigger IGST.
- 3
Configure Sikkim Professional Tax on payroll
For employees based in Sikkim, HelloBooks computes the Professional Tax deduction from the current slab table. Annual cap is ₹2500. Verify the live slab on the Sikkim Commercial Taxes Division portal before each state-budget cycle.
- 4
File monthly / quarterly GST returns from the books
HelloBooks aggregates your Sikkim invoices, credit notes, and amendments into GSTR-1 (outward supplies) and the GSTR-3B liability summary. Review, then file directly via the GST portal or export the JSON.
- 5
Reconcile GSTR-2B against your purchase register
Each month, the GST portal publishes GSTR-2B — auto-drafted from your suppliers' GSTR-1 filings. HelloBooks reconciles this against your purchase register and flags missing input tax credit before the ITC claim window closes.
Frequently asked questions
What is the Sikkim GST state code?
11. Every GSTIN issued in Sikkim starts with 11, followed by the entity's 10-character PAN and three further characters. HelloBooks validates the structure and the embedded state code whenever you save a customer or vendor master.
What is the GST registration threshold in Sikkim?
₹20 lakh for goods (₹10 lakh for services) — special-category state under CGST Act §22(2), so the threshold is half the national default. Inter-state suppliers, e-commerce operators, casual taxable persons, and persons under reverse charge must register from the first rupee — no threshold applies.
Does Sikkim levy Professional Tax?
Sikkim levies Professional Tax under Article 276 of the Constitution. Annual cap is ₹2500 (the constitutional maximum is ₹2,500/year). Slab tables are revised in state budgets — verify the current schedule on the Sikkim Commercial Taxes Division portal.
Sikkim is a State — does that change my GST compliance?
Sikkim levies SGST alongside CGST on intra-state supplies (each half of the rate). Inter-state supplies attract IGST. Returns and filing process are identical across states.
Where do I file Sikkim GST returns?
All GST returns are filed through the central GST portal (gst.gov.in) — there is no state-specific filing portal. The Sikkim Commercial Taxes Division (https://sikkimtax.gov.in/) handles state-level matters: registration assistance, advance rulings, and Professional Tax / state-specific cesses.
How does HelloBooks handle Sikkim compliance?
HelloBooks validates Sikkim GSTINs (state code 11 expected), applies the right CGST + SGST split on intra-state supplies, builds filing-ready GSTR-1 / GSTR-3B for Sikkim-registered entities, and tracks Professional Tax deductions on payroll.
Start exploring
Indian GST: CGST, SGST, IGST & Registration
Thresholds, GSTIN format, place of supply, and the rules that decide whether you charge CGST + SGST or IGST.
Read gst basicsHSN & SAC Codes for GST Invoices
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Read hsn & sac codesGST E-Invoicing: IRN, QR & IRP Workflow
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Read e-invoicingE-Way Bill Rules, Distance Limits & Cancellation
When an EWB is required, validity periods by distance, Part A vs Part B fields, and the HelloBooks generation flow.
Read e-way billGSTR-1, 3B, 2B & 9 Returns: Filing Guide
What each return covers, the due dates and late fees, and how HelloBooks builds them from your books.
Read gstr returnsAIS Reconciliation: Match Your Annual Information Statement
Upload AIS JSON or PDF, match TDS and income entries to your books, and export the reconciliation report for ITR filing.
Read ais reconciliationAuthoritative sources
GST rules change frequently. Always verify the current position with the official GSTN sources below before filing.
- GST Portal — gst.gov.inOfficial GSTN portal for registration, returns, and payments.
- CBIC GST — cbic-gst.gov.inCentral Board of Indirect Taxes & Customs — Acts, rules, notifications, and circulars.
- E-Invoice Portal — einvoice1.gst.gov.inInvoice Registration Portal (IRP) for IRN generation and e-invoice schema.
- E-Way Bill Portal — ewaybillgst.gov.inNational e-way bill portal for EWB generation, cancellation, and verification.
File GSTR-1 and GSTR-3B free with HelloBooks
The Free Plan is ₹0: it files unlimited GSTR-1 and GSTR-3B returns for one GSTIN and reconciles GSTR-2B, with no credit card and no expiry. Pro at ₹499/month adds GSTR-9 generated ready to file, e-invoicing and unlimited users.
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