The hardest GST question in online services is not always the tax rate. It is deciding where the supply is deemed to happen. That answer drives IGST versus CGST/SGST, export treatment, customer ITC and refund eligibility.
In GST, the tax type is not decided only by the address printed on the invoice. The analysis starts with the location of supplier and the place of supply. If the location of supplier and place of supply are in the same State or Union territory, the supply is generally intra-State and CGST plus SGST/UTGST applies. If they are in different States, or if the law treats it as inter-State, IGST applies.
| Service situation | Default / special place-of-supply logic | Why finance teams care |
|---|---|---|
| B2B general services within India | Location of the registered recipient, unless a special rule applies | Wrong customer GSTIN or State can break the client's ITC flow. |
| B2C general services within India | Recipient location if address exists; otherwise supplier location | Address-on-record discipline becomes important. |
| Immovable-property linked services | Place where immovable property is located or intended to be located | Hotel, venue, real estate, architecture and fit-out invoices need special review. |
| Training, event, admission and performance services | Depends on recipient type and where performed / event is held | Common source of wrong IGST vs CGST/SGST classification. |
| International services | Section 13 rules apply when supplier or recipient is outside India | Critical for export-of-services and intermediary analysis. |
Online services are often supplied without physical presence, which makes invoice State, billing address, IP/location data, customer GSTIN and contract terms important. A SaaS subscription, a digital membership, a remote advisory call and a marketplace sale can all look similar in payment records but differ for place-of-supply purposes.
| Customer type | Common rule direction | High-risk mistake |
|---|---|---|
| Registered Indian business | Usually customer location for general services unless a special rule applies | Billing to head office when service recipient GSTIN is different. |
| Unregistered Indian individual | Address on record matters; otherwise supplier location may apply | Collecting no State/address data on checkout. |
| Foreign business customer | Section 13 analysis; export conditions must be tested | Assuming foreign billing address alone proves export. |
| Foreign individual using digital content in India | OIDAR-style and recipient-location indicators may matter | Ignoring customer location indicators and payment evidence. |
| Marketplace/platform transaction | Contract chain must show who supplies to whom | Treating platform fee and customer revenue as one supply. |
This article uses official GST law, GST portal guides and CBIC circulars only. Verify rates, forms and procedural changes before publishing because GST notifications and portal flows can change.