GST for SaaS and digital services: place of supply rules explained
TL;DR: For digital services and SaaS specifically, "place of supply" under GST, which directly determines whether a transaction is treated as an intra-state supply (CGST + SGST) or an inter-state/export supply (IGST or zero-rated export), is determined through a specific hierarchy of factors rather than simply the seller's own location: for a registered business customer, it is generally the customer's registered place of business (their GSTIN's state); for an unregistered customer, the rules fall back to a defined sequence of proxies, billing address, payment information, and other available location indicators, since a digital service has no genuine physical delivery point to reference the way a shipped physical product does.
Why digital services need genuinely different rules
For a physical product, place of supply generally follows the straightforward, intuitive logic of where the goods are actually delivered, a clear, verifiable physical location. A SaaS subscription or other digital service has no equivalent physical delivery point at all, the customer accesses the service remotely regardless of their actual location, meaning GST's place-of-supply framework needed a genuinely different approach for digital services specifically, relying instead on a defined hierarchy of proxies for customer location rather than a straightforward physical delivery address.
Place of supply for a B2B (registered) customer
When selling to a GST-registered business customer, place of supply is generally determined by the customer's own registered place of business, meaning the state associated with the customer's GSTIN, a relatively straightforward, verifiable reference point since the customer's own registration provides a clear, documented location to reference, distinct from having to infer or estimate their actual location through less direct proxies.
Place of supply for a B2C (unregistered) customer
For a customer without GST registration (the more common scenario for a typical SaaS or digital service business with individual, consumer-facing customers), the rules apply a defined hierarchy of proxies since there is no registered business location to directly reference: generally starting with the customer's address on record (if collected and available) as a first reference point, with further specific proxy rules (relating to payment method information, IP address, or other available location indicators, depending on the specific service category and the rules' particular provisions) applying in sequence if the primary reference point is unavailable or ambiguous. This means a business genuinely needs to collect and retain reasonable location information from its customers, even for a purely digital service with no physical delivery requirement, specifically to correctly apply these place-of-supply rules rather than defaulting to an assumption or the seller's own convenient location.
Why getting this wrong matters
Incorrectly determining place of supply directly affects which specific tax component applies (CGST+SGST for a genuinely intra-state supply, versus IGST for an inter-state supply), and getting this wrong means potentially remitting tax to the wrong state's account or applying the wrong tax structure entirely, a genuine compliance error with real correction cost and effort even where the total tax amount collected might be nominally similar, since GST's revenue-sharing structure between the central government and specific states depends on this place-of-supply determination being made correctly, not merely on the correct total tax rate being applied.
Export of digital services: zero-rating
If your digital service customer is genuinely located outside India, this transaction can potentially qualify as an export of services, generally eligible for zero-rated treatment under GST similar in principle to the export treatment covered for physical goods in our dedicated cross-border shipping guide, but this requires meeting the specific defined conditions for a transaction to genuinely qualify as an "export of service" under GST law, including conditions related to where payment is received and the nature of the relationship between the supplier and recipient, worth confirming carefully with a qualified tax professional rather than assuming any transaction with a foreign-located customer automatically, straightforwardly qualifies for export treatment without meeting these specific conditions.
OIDAR services: a specific category worth knowing
"Online Information and Database Access or Retrieval" (OIDAR) services are a specifically defined category under GST covering certain digital services (including many types of SaaS, digital content, and similar automated, internet-delivered services) with their own particular place-of-supply and, in certain cross-border contexts, registration and compliance provisions distinct from general digital services more broadly. Confirming whether your specific SaaS or digital service offering falls within this specific OIDAR classification, and understanding the particular provisions that apply if it does, is worth doing directly given how consequential correct classification is for determining your actual compliance obligations.
A comparison table
| Customer type | Place of supply determination |
|---|---|
| GST-registered business customer (B2B) | Customer's registered place of business (GSTIN state) |
| Unregistered individual customer (B2C), address on record available | Customer's address on record |
| Unregistered individual customer (B2C), no address available | Falls back through defined proxy hierarchy (payment info, other location indicators) |
| Genuinely foreign-located customer meeting export conditions | Potentially zero-rated export of service |
FAQs
Do I need to collect a customer's address even for a purely digital SaaS subscription with no physical delivery?
Yes, this is specifically why address collection matters for a digital service despite there being no physical delivery requirement; the address serves as a key input for correctly determining place of supply under GST's specific rules for digital services, not merely a convenience or optional data point.
How do I know if my digital service qualifies as an OIDAR service specifically?
This requires reviewing the specific, current definition and criteria under GST law against your particular service's actual characteristics (level of automation, minimal human intervention, delivery via information technology), worth confirming with a qualified tax professional given how consequential correct classification is for your compliance obligations.
Does selling to a customer in a different Indian state always mean IGST applies?
For a B2B transaction, yes, since place of supply follows the registered business customer's GSTIN state, meaning a genuinely inter-state B2B transaction attracts IGST; for a B2C transaction, the same general principle applies based on the determined place of supply through the applicable proxy hierarchy, with IGST applying if that determined place of supply is in a different state than your own registered location.
Is there a simpler compliance path for a very small SaaS business with limited customers?
The place-of-supply rules themselves apply regardless of business size, though a small business with a limited, well-understood customer base may find manual determination more manageable than a large business with thousands of geographically diverse customers, where automated billing/tax software correctly implementing these rules becomes considerably more valuable and often necessary.
Does GST apply differently to a one-time digital product sale versus an ongoing SaaS subscription?
The underlying place-of-supply principles apply similarly to both, though a recurring subscription requires ongoing, consistent application of these rules across each billing cycle, worth ensuring your billing system correctly and consistently applies the determination made at initial signup (or re-evaluates it appropriately if the underlying facts genuinely change) rather than assuming a single point-in-time determination remains automatically, permanently correct indefinitely.
Should I use dedicated SaaS billing software with built-in GST compliance, rather than managing this manually?
For a business with meaningful transaction volume or customer geographic diversity, dedicated billing software with built-in, properly configured GST place-of-supply logic considerably reduces both the manual effort and the error risk compared to manual determination for every individual transaction, a reasonable, often necessary investment as a digital service business scales beyond a small, simple customer base.
Does this apply to a WooCommerce-based digital product or subscription store, not just a dedicated SaaS platform?
Yes, the same underlying GST place-of-supply principles apply to any digital service or product sale, including one sold through a WooCommerce store using appropriate digital product or subscription functionality, covered in the broader context of our dedicated WooCommerce Subscriptions guide, meaning a WooCommerce-based digital business needs the same careful attention to these rules as a dedicated SaaS platform would.
Conclusion
GST's place-of-supply rules for digital services and SaaS rely on a defined hierarchy of customer-location proxies, the registered GSTIN state for a B2B customer, and a sequence of address and other location indicators for a B2C customer, rather than a straightforward physical delivery point, since a digital service has no genuine equivalent to a shipped product's delivery address. Getting this determination wrong affects which specific tax component applies and which state receives the associated revenue, a genuine, correctable but avoidable compliance issue.
Collecting reasonable customer location information even for a purely digital service, understanding whether your specific offering falls under the particular OIDAR classification, and confirming export treatment conditions carefully for genuinely foreign customers are the practical steps toward correct, ongoing compliance for a digital service or SaaS business.
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