One GSTIN per group PNR: how to handle GST invoices for multi-company group flight bookings in India (2026)
By Kabir Malhotra (Kabir Malhotra writes about how Indian travel buyers actually pay — UPI vs credit card vs forex card surcharges, reward-point math on the top travel credit cards, RBI tokenisation, EMI-on-flights and the small fees that compound across a year of bookings.) · Published · 9 min read
Finance teams at companies that co-organise events or fly combined delegations often hit the same wall: the airline can only put one GSTIN on a group PNR. Here is what the constraint actually is, and how to work around it legally.
TL;DR — the short answer
A single group PNR in India can carry only one GSTIN on the tax invoice — this is a system constraint at the airline's ERP level, not a rule you can negotiate around. If two or more legal entities (companies with different GSTINs) need separate GST invoices for ITC claims, the solution is to split the group into two or more separate group PNRs — one per GSTIN — even if all passengers are travelling on the same flight. Airline group desks and TMCs can accommodate this, and you can request that both PNRs be on the same departure. Submit the GSTIN details before any tickets are issued; changing a GSTIN on an already-issued tax invoice requires ticket cancellation and reissuance.
Why the one-GSTIN-per-PNR constraint exists
This is not arbitrary bureaucracy — it reflects how airline invoicing systems work under India's GST framework. When an airline issues a tax invoice, it is a B2B invoice under CGST/IGST rules, and the buyer's GSTIN must be printed on it. The airline's ERP system links one invoice to one PNR, and one GSTIN to one invoice. There is no mechanism in the standard airline CRS (Computer Reservation System — Amadeus, Sabre, or Navitaire, which IndiGo uses) to split a single booking reference across two different buyer entities for tax purposes.
In practice: the airline raises one GST invoice per PNR. That invoice shows the billing entity's name, address, and GSTIN. The passengers on the PNR can be from different companies, but the invoice goes to one company only. If Company A and Company B both want ITC on their employees' tickets for the same event, they need separate PNRs — and therefore separate group booking contracts.
This is different from a credit card statement, where you might have multiple transactions reconciled later. A GST invoice has a specific legal format (prescribed under Section 31 of the CGST Act and Rule 46 of the CGST Rules), and a single invoice cannot serve two registered taxpayers as the recipient.
Common scenarios where this comes up
The multi-GSTIN group PNR problem surfaces in a few recurring situations:
- Co-organised corporate events: Two companies jointly hosting a conference and flying attendees from Delhi to Hyderabad. Both want ITC on their employees' tickets. If they try to put all 80 employees on one group PNR, only one company can claim ITC.
- Parent company and subsidiary travel: An FMCG company with a registered subsidiary flies employees from both entities for an annual strategy offsite. The parent and subsidiary have different GSTINs and different legal names — the parent's finance team wants separate invoices for clean accounting.
- Consortium or project-based travel: Infrastructure or IT projects where two partner companies are travelling to a joint site visit. Both companies want invoices under their own GSTIN for project cost allocation.
- Multi-location teams with different GST registrations: Some companies have state-specific GST registrations under the same PAN but different GSTINs (the state code changes). If the group is flying from two different departure cities, this can add another layer of complexity.
The right structure: separate group PNRs per GSTIN
The clean solution is straightforward: if you have two companies with different GSTINs, create two group booking requests — PNR A for Company A's employees (GSTIN of Company A) and PNR B for Company B's employees (GSTIN of Company B). Request that both groups be on the same departure flight. Airline group desks deal with this regularly — it is not an unusual ask, particularly on business routes.
What to tell the group desk: 'We need two separate group PNRs on the same flight — [Flight Number, Date, Origin–Destination]. Group 1 is [X] passengers billing to GSTIN [AAAA1234B]. Group 2 is [Y] passengers billing to GSTIN [BBBB5678C]. Please issue separate group contracts and invoices for each.' A good TMC can handle this as a single request.
Practical considerations:
- Both groups need to meet the minimum group size threshold (typically 10 passengers) independently. A split of 15 + 7 may mean the 7-person group does not qualify for a group fare and has to book individual retail tickets instead. Plan your split accordingly.
- Seat allocation: With two separate PNRs on the same flight, the two groups' seats are allocated independently. If you want Company A's employees and Company B's employees to sit in adjacent sections, note this as a preference — it is not guaranteed but can often be accommodated.
- Check-in: Two PNRs mean two separate check-in references. Brief all passengers on which PNR they belong to before airport arrival. This sounds minor but causes real confusion at check-in counters.
What about a travel agent issuing their own invoice?
Some corporate travel arrangements go through a TMC or travel agent who issues their own invoice to each company client — separate from the airline's invoice. In this model, the TMC is the buyer on the airline's system (one GSTIN: the TMC's) and then issues separate invoices (or credit notes) to each client company.
This can work for ITC purposes if the chain is clean: the airline issues to the TMC (B2B invoice, TMC's GSTIN), the TMC issues to Company A and Company B separately (with their respective GSTINs). But there are nuances:
- The TMC's invoice to the companies must correctly show the airfare plus GST — they cannot just rebill without passing through the GST correctly.
- If the TMC adds a service fee, that fee also attracts GST at 18% (for travel agent services), shown separately on the TMC's invoice.
- Company A and Company B can claim ITC on both the airfare GST and the agent service fee GST, provided both are for business purposes and the invoices are correctly structured.
This is a common commercial arrangement in India's corporate travel ecosystem. If your company uses a TMC, their finance team likely handles this routinely — ask them specifically how they structure the airline invoice and their own service invoice for multi-entity groups.
B2B travel portals like FlightGPT Partner issue invoices per booking — so bookings for different client companies under an agent's account are naturally separate and can carry different billing entity details.
Changing the GSTIN after ticketing: what actually happens
Finance teams sometimes discover the GSTIN error after tickets are already issued — this is more common than it should be. What happens then?
The short answer: you have to ask the airline or TMC to cancel and reissue the tickets with the correct GSTIN on the invoice. Airlines that allow this will typically do so only if:
- The departure date is not imminent (at least a few days away, ideally more).
- The fare was re-priced at the current market rate on reissuance — if fares have risen, you pay the difference.
- There are no other restrictions on the fare class that prevent reissuance.
Some airlines or TMCs issue a credit note for the original invoice and a new invoice with the corrected GSTIN, without cancelling the tickets — this is cleaner operationally but depends on the billing system's capability and the airline's policy. Ask specifically about this option.
The best protection is submitting the GSTIN before ticketing. Make this a standard step in your company's travel procurement checklist: 'Confirm billing GSTIN before group tickets are issued' should be on the list next to 'approve travel budget'.
Summary: a clean GST workflow for multi-entity group bookings
To recap the practical workflow for finance and travel admin teams:
- Identify all GSTIN entities whose employees are in the group.
- Split the group into separate booking requests, one per GSTIN (ensuring each group meets minimum size thresholds).
- Submit GSTIN details to the airline group desk or TMC at the time of the booking request — before any deposit is paid.
- Receive separate proforma invoices per group; verify GSTIN, entity name, and address on each before confirming.
- Pay deposits and balances separately per group booking.
- Receive separate tax invoices per PNR; reconcile against employee lists for ITC filing.
For more on ITC eligibility on employee flight tickets, see our Section 17(5) blocked credit article. For the mechanics of setting up a corporate group booking for an offsite, see our Bangalore–Goa corporate offsite guide.
Frequently asked questions
Can an airline issue a single group PNR with two different GSTINs on the invoice?
No. Indian airline invoicing systems issue one GST invoice per PNR, and one invoice can only carry one GSTIN as the recipient. To get separate invoices for two different GSTINs, you must create two separate group PNRs — even if both groups are on the same flight. Airlines accommodate this routinely; inform the group desk upfront.
What is the minimum group size to qualify for a separate group PNR with its own GSTIN?
The standard minimum is 10 passengers per group PNR. If you split a group of 22 into two entities of 15 and 7, the 7-person entity typically does not qualify for a group fare and must buy individual retail tickets with individual invoices. Plan your entity split to ensure each group meets the 10-passenger threshold.
Can we change the GSTIN on a group flight invoice after the tickets are issued?
Generally no, not without cancelling and reissuing the tickets — which may result in fare repricing at current market rates. Some airlines or TMCs can issue a credit note and corrected invoice in specific circumstances, but this is not standard. The safest approach is to confirm the correct GSTIN with finance before submitting the group booking.
If a TMC books the group flight, whose GSTIN appears on the airline invoice?
The TMC's GSTIN, since the TMC is the buyer on the airline's system. The TMC then issues its own B2B invoice to your company showing the airfare component and their service fee, with your company's GSTIN as the recipient. You claim ITC on the TMC's invoice (which passes through the airfare GST), not directly on the airline's invoice.
Does GST apply on the full group airfare or just part of it?
Air travel in India attracts GST at 5% on the base fare (economy class) or 12% for business class tickets. The GST applies on the base fare amount; airline-imposed fees and government taxes may be structured separately. For inter-state flights, this appears as IGST; for intra-state routes, as CGST + SGST. Verify the breakdown on the invoice you receive — the airline's invoice should itemise this.
How far in advance can a group booking GSTIN be updated if we discover the wrong entity is named?
Ideally, before the deposit is paid — at the time of the booking request. After deposit but before ticketing, most airlines can update the billing GSTIN with a request to the group desk. After ticketing, it requires cancellation and reissuance, which carries fare repricing risk. Build a GSTIN-verification step into your booking approval workflow.