UIN Application for Foreign Embassies & GST Exemptions

What Is a UIN Under GST and Why Embassies Need It

The Unique Identification Number (UIN) under India's Goods and Services Tax regime is a special class of registration designed for entities that are exempt from paying taxes in India but need a mechanism to claim refunds on GST paid on their purchases. Unlike a standard GSTIN, a UIN does not create any output tax liability — it exists solely for tracking inward supplies and processing refund claims.

The UIN system implements India's obligations under international diplomatic conventions, including the Vienna Convention on Diplomatic Relations (1961) and the Vienna Convention on Consular Relations (1963), which guarantee tax exemptions to diplomatic missions.

Who Is Eligible for a UIN?

Under Section 25(9) of the CGST Act, 2017, the following entities can apply for a UIN:

• Foreign diplomatic missions and embassies: Embassies and high commissions of foreign countries accredited to India
• Consulates: Consulates and consulates-general of foreign countries
• Specialized agencies of the United Nations: WHO, UNESCO, UNICEF, ILO, FAO, and other UN bodies operating in India
• Multilateral financial institutions: World Bank, IMF, Asian Development Bank, and other organizations notified under the United Nations (Privileges and Immunities) Act, 1947
• Other notified persons: Any person or class of persons as notified by the Commissioner of Central or State Tax

Key Advantage: Single National Registration

Unlike regular GST registrations that require separate state-wise registration, rule 17(1A) of the CGST Rules makes a UIN granted to an entity under section 25(9)(a) applicable to the territory of India. A foreign embassy in New Delhi can use its single UIN for purchases made anywhere in India — whether procuring goods from Mumbai, services from Bangalore, or supplies from Chennai. Note the counterpart in the instructions to Form GSTR-11: the refund application is filed in the same State in which the UIN was allotted.

Step-by-Step UIN Application Process

Step 1: Obtain MEA Authorization

Before applying on the GST portal, the entity must obtain authorization from the Ministry of External Affairs (MEA):

• The MEA issues a formal letter to the diplomatic mission confirming its accreditation status
• Part B of Form GST REG-13 has a dedicated field (2A) for the MEA recommendation letter number and date, alongside a separate field (3) for notification details
• For UN bodies, the equivalent authorization comes from the Department of Economic Affairs or the relevant nodal ministry

Step 2: Prepare Required Documents

Gather the following before starting the online application:

• MEA letter with MEA number and date
• Letter of authorization: Appointing the authorized signatory for the UIN application
• Identity proof of authorized signatory: Passport, for foreign nationals. Form GST REG-13 marks the PAN and Aadhaar fields as not applicable to entities specified in section 25(9)(a), so a mission does not need to produce either.
• Proof of address of the principal place of business: Lease agreement or official allotment letter for the embassy/consulate premises
• Contact details for the entity and the authorised signatory — Part A and field 6 of Part B
• Bank account details for the entity's account in India (for receiving refunds)

Step 3: File Form GST REG-13 on the GST Portal

The application is submitted electronically through gst.gov.in:

1. Access the GST portal: Navigate to gst.gov.in and click on Services > Registration > New Registration
2. Select UIN registration: Choose the option for UIN (not regular GST registration)
3. Enter MEA details: Provide the MEA number and date from the authorization letter
4. Fill entity details: Name of the embassy/organization, type of entity, country, principal place of business address in India
5. Enter authorized signatory details: Name, designation, passport number (or PAN/Aadhaar), contact details
6. Upload supporting documents: MEA letter, authorization letter, identity proof, address proof
7. Verification: The authorized signatory verifies the application using Electronic Verification Code (EVC) sent to the registered mobile number and email
8. Submit: An Application Reference Number (ARN) is generated for tracking

Step 4: Processing and UIN Issuance

After submission:

• Rule 17(2) of the CGST Rules gives the proper officer three working days from the date of submission to assign the UIN and issue the certificate
• The same sub-rule lets the officer assign a UIN on a recommendation from the Ministry of External Affairs, without waiting for the entity's own application
• The certificate is issued in Form GST REG-06 — the same certificate form used for regular registrations
• The UIN is a 15-character number in the same format as a GSTIN

How the GST Exemption Works in Practice

It is important to understand that the UIN does not grant upfront exemption from GST. The process works as a refund mechanism:

1. Embassy purchases goods or services: GST is charged by the supplier at the regular rate (5%, 18%, or 40% for demerit goods, under the GST 2.0 slab structure effective 22 September 2025)
2. Supplier reports the sale: The supplier includes the UIN in their GSTR-1 return instead of the buyer's GSTIN. This tags the transaction as a supply to a UIN holder.
3. Embassy files GSTR-11: The UIN holder files Form GSTR-11 declaring all inward supplies for the month
4. Embassy files refund claim: Using Form GST RFD-10, the embassy claims a refund of the GST paid
5. Refund is processed: The tax authority processes the refund and credits it to the embassy's Indian bank account

What Makes an Invoice Refundable

There is no minimum invoice value. Rule 95(3)(a) of the CGST Rules once required the price of the supply covered by a single tax invoice to exceed INR 5,000 excluding tax, but those words were omitted by Notification 75/2017-Central Tax dated 29 December 2017, with retrospective effect from 1 July 2017 (Notification 26/2018-Central Tax). Practitioner summaries still repeat the INR 5,000 figure; it is no longer in the rule.

What rule 95(3) does require is that the inward supply was received from a registered person against a tax invoice, that the applicant's name and UIN appear on that tax invoice, and that any further conditions specified in the notification issued under section 55 are satisfied. The instructions to Form GST RFD-10 add that the certificate issued by the MEA granting the refund facility must be produced before the proper officer processing the claim.

So if an embassy buys office furniture worth INR 8,000 plus 18% GST (INR 1,440), the INR 1,440 is claimable — provided the supplier is registered, issued a tax invoice, and printed the UIN on it. A INR 3,000 stationery purchase is claimable on exactly the same terms. The practical obstacle is never the invoice value; it is whether a small supplier issued a proper tax invoice carrying the UIN.

Filing GSTR-11: Monthly Return for UIN Holders

GSTR-11 is the GST return specifically designed for UIN holders. It is a statement of inward supplies, not a regular tax return.

Filing Deadline

Rule 82(1) of the CGST Rules requires a UIN holder claiming a refund to furnish the inward-supply details in Form GSTR-11 along with the refund application — and rule 95(1) allows that application once every quarter. In practice the GST portal presents GSTR-11 as a monthly statement due by the 28th of the month following the month in which the inward supplies were received, and missions file monthly and claim quarterly. Treat the 28th as the portal's operating deadline rather than a date fixed by the rules.

What GSTR-11 Contains

Filing Process

1. Log in to the GST portal using UIN credentials
2. Navigate to Returns: Services > Returns > Returns Dashboard
3. Select the return period and click GSTR-11
4. Enter the invoices you are claiming on: the form's own instructions say that, for refund purposes, only those invoices on which refund is sought need be entered — reconcile them against your purchase records first
5. Check any supplier-sourced data: where the portal has drawn invoice details from suppliers' GSTR-1 filings, verify each line against the paper invoice
6. Submit and file: Verify using EVC and submit

There is no specific penalty for late filing of GSTR-11. However, delayed filing delays your refund claim processing.

Claiming GST Refunds Through Form RFD-10

After filing GSTR-11, UIN holders claim actual refunds through Form GST RFD-10.

Filing Frequency

Form RFD-10 must be filed quarterly. The refund application covers the inward supplies reported in GSTR-11 for the three months of that quarter.

Step-by-Step Refund Process

1. Log in to the GST portal with UIN credentials
2. Navigate to Refund: Services > Refunds > Application for Refund
3. Select the refund type: Choose "Refund for UIN holders"
4. Select the period: The quarter for which you are claiming the refund
5. System auto-populates: Data from accepted invoices in GSTR-11 for that quarter flows into RFD-10
6. Verify and add bank details: Confirm the bank account where the refund should be credited
7. Submit: File using EVC
8. Track status: Monitor refund status under Services > Refunds > Track Application Status

Refund Processing Timeline

Section 54(7) of the CGST Act requires the proper officer to issue the refund order within 60 days from the date of receipt of an application complete in all respects, and section 56 makes interest payable where a refund ordered under section 54(5) is not paid within that window. In practice processing often runs longer.

Refund Limitations

• The supply must have been received from a registered person against a tax invoice that carries the applicant's name and UIN (rule 95(3))
• Section 54(2) of the CGST Act runs the time limit from the last day of the quarter in which the supply was received — not from the invoice date. The period was six months as enacted and has since been extended to two years; confirm the limb in force before assuming the longer window.
• The MEA certificate granting the refund facility must be produced before the proper officer (instructions to Form GST RFD-10)
• Any further restrictions are those specified in the notification issued under section 55. The section 17(5) blocked-credit list governs input tax credit, which is a different mechanism from this refund — do not assume it carries across without checking that notification.

UIN vs Regular GSTIN: Key Differences

Understanding the distinction between a UIN and a regular GSTIN is important for entities that may qualify for either:

Interaction with Other Tax Obligations

While embassies and diplomatic missions are generally exempt from Indian taxes, certain related compliance requirements may still apply depending on the entity's activities:

• TDS obligations: If the embassy employs local Indian staff and pays salaries exceeding taxable limits, it may need to deduct TDS under Section 392 of the Income-tax Act, 2025 (section 192 of the Income-tax Act, 1961). Similarly, payments to Indian contractors for services may attract TDS under section 393(1) of the Income-tax Act, 2025 (Table, Sl. No. 6(i)/(ii)(a)/(iii); section 194C of the Income-tax Act, 1961) or (Table, Sl. No. 6(iii); section 194J of the Income-tax Act, 1961).
• FEMA compliance: Foreign exchange transactions by diplomatic missions, while generally exempted under specific RBI circulars, may still require documentation for banking purposes
• Customs duty exemption: Diplomatic missions receive customs duty exemptions under the Customs Act, 1962, through a separate process managed by the MEA — this is distinct from the GST UIN mechanism
• Digital signature requirements: For electronic filing on the GST portal, the authorized signatory may need an Indian Digital Signature Certificate, depending on the filing method used

Practical Considerations for Embassies

Supplier Compliance Is Critical

The refund process depends heavily on suppliers correctly reporting the embassy's UIN in their GSTR-1 returns. Common issues include:

• Suppliers entering the UIN incorrectly or confusing it with a regular GSTIN
• Suppliers not filing their GSTR-1 on time, causing delays in auto-population of GSTR-11
• Small suppliers who are composition scheme dealers — they do not issue tax invoices with separate GST breakup, making refund claims impossible

Best practice: Provide a printed card with your UIN and instructions to every supplier. Verify that the UIN appears correctly on every invoice before making payment.

Record-Keeping Requirements

Maintain organized records of:

• All purchase invoices with UIN reference
• GSTR-11 filing acknowledgments for each month
• RFD-10 filing acknowledgments for each quarter
• Refund sanction orders and bank credit confirmations
• Any correspondence with GST authorities regarding deficiency memos or queries

Amendment and Cancellation

Changes to the particulars furnished in Form GST REG-13 go through Form GST REG-14 within fifteen days of the change (rule 19(1)). Cancellation works differently: rule 20 expressly excludes a person to whom a Unique Identity Number has been granted under rule 17 from the Form GST REG-16 route, so a mission that is closing cannot simply file REG-16 — take the closure up with the jurisdictional officer. Either way, file any pending refund claims before the UIN is deactivated; post-deactivation refund processing becomes significantly more complicated.

For comprehensive guidance on GST compliance and FEMA regulatory requirements for international organizations operating in India, our tax advisory team assists with UIN applications, monthly GSTR-11 filing, and quarterly refund processing.

Common Challenges and Solutions

Delayed Refund Processing

While the law prescribes 60 days for refund processing, delays are common. Embassies can mitigate this by:

• Filing GSTR-11 promptly by the 28th of each month — delays in GSTR-11 directly delay the quarterly RFD-10 filing
• Ensuring all invoices are accepted (not left pending) in GSTR-11 before filing RFD-10
• Following up with the jurisdictional GST officer if processing exceeds 90 days
• Filing a grievance on the GST portal under Services > User Services > Grievance

New Embassy Setup in India

When a new diplomatic mission establishes operations in India, the UIN application should be among the first compliance steps. The recommended sequence is: obtain MEA accreditation, open an Indian bank account, apply for UIN via Form REG-13, and begin collecting invoices with the UIN from day one. Purchases made before UIN issuance cannot be claimed for refund through the standard GSTR-11 and RFD-10 process.

Key Takeaways

• UIN is a special GST registration for foreign embassies, consulates, UN agencies, and multilateral organizations — it enables GST refund claims, not upfront exemption
• Application is through Form GST REG-13 on the GST portal, on the strength of MEA authorisation; rule 17(2) gives the officer three working days to assign the UIN and issue Form GST REG-06
• There is no minimum invoice value — the INR 5,000 threshold was omitted from rule 95(3)(a) with effect from 1 July 2017. What matters is a tax invoice from a registered supplier carrying the UIN.
• GSTR-11 is filed for each month — the portal's operating deadline is the 28th of the following month — and refund claims through Form RFD-10 are filed once a quarter under rule 95(1)
• Single all-India registration under rule 17(1A) — no state-wise registration needed, unlike regular GST registrations, though the refund application itself is filed in the State that allotted the UIN
• Supplier compliance is key — the entire refund process depends on suppliers correctly reporting the UIN in their GSTR-1 returns