GST Reverse Charge (RCM) Calculator

Compute the GST liability under the Reverse Charge Mechanism — the supplier doesn't collect tax, the recipient self-assesses it. Splits CGST/SGST or IGST, and flags Input Tax Credit eligibility.

DomainIndia SpecificStandardCGST Act §9(3) / IGST Act §5(3)Versionv1.0.0Added2026-05-16
Inputs
Invoice Amount
GST Rate
Supply Type
Intra-state → CGST + SGST. Inter-state → IGST.
Most business-use supplies are eligible. Common ineligibles: motor vehicles for personal use, food & beverages, club memberships.
Result
version1.0.0standardCGST Act §9(3) / IGST Act §5(3)
POST /v1/india-specific/gst-rcm-calculator
curl -X POST https://api.toolsamurai.com/v1/india-specific/gst-rcm-calculator \
  -H "Authorization: Bearer sk_live_•••••••••••••••" \
  -H "Content-Type: application/json" \
  -d '{
     "base_amount_inr": 10000,
     "gst_rate_pct": "18",
     "transaction_type": "intra_state",
     "itc_eligible": true
  }'
gstrcmreverse-chargeindiataxitc