Export with Payment of Tax in India (IGST Route) – Complete Guide for Exporters (2026)

Introduction: Why This Blog Matters for Exporters

If you are an exporter in India, understanding Export with Payment of Tax under GST (IGST Route) can significantly improve your cash flow, refund speed, and compliance efficiency.

Under GST, exports are treated as Zero-Rated Supplies, meaning:

• You don’t bear tax cost ultimately
• But you must choose the right route to claim refund

This blog gives you a complete, Expert-level guide – perfect for business owners, exporters, and consultants.

What is Export with Payment of Tax (IGST)?

Export with payment of tax means:

➡️ You charge IGST on export invoice
➡️ Pay it to the government
➡️ Then claim 100% refund of IGST paid

Legal Framework:

• Section 16 of IGST Act, 2017
• Section 54 of CGST Act, 2017

Step-by-Step Process (IGST Refund Mechanism)

Step 1: Create Export Invoice

Important details needs to Include under Export Invoice:

• IGST amount – Correct IGST Amount needs to be mention on export invoice.
• Correct GSTIN – Correct GSTIN and Address needs to mention.
• Declaration: “Supply meant for export on payment of IGST”

Step 2: File Shipping Bill (Most Critical)

Filing the Shipping Bill on ICEGATE is the most crucial step in the entire export with payment of tax (IGST) process. This is because the shipping bill itself acts as a “deemed refund application”—meaning you don’t need to file a separate refund application like RFD-01.

What is a Shipping Bill?

A Shipping Bill is a legal document filed with Customs that contains complete details of your export, such as:

• Exporter GSTIN
• Invoice number & date
• Taxable value and IGST amount
• Port code and destination country
• HSN code of goods

Once this document is successfully filed and validated, it becomes the base document for IGST refund processing.

Step 3: File GST Returns

Filing GST returns correctly is a critical step in ensuring your IGST refund is processed smoothly. The government system matches your Shipping Bill data with GST return data, and any mismatch can block or delay your refund.

Reporting in GSTR-1 (Outward Supplies)

In GSTR-1, you must report export transactions under:

Table 6A – Exports Invoices

Include the following details carefully:

• Export invoice number & date
• Invoice value
• Taxable value
• IGST amount charged
• Port code
• Shipping bill number & date

This table directly connects your GST data with ICEGATE (Customs system).

Reporting in GSTR-3B (Summary Return)

In GSTR-3B, report export details under:

Table 3.1(b) – Zero Rated Supplies

Here you need to declare:

• Total export taxable value
• Total IGST paid on exports

This confirms that tax has actually been paid, which is essential for refund eligibility.

Common Mistakes in GST Returns

• Invoice number mismatch with shipping bill
• Wrong IGST amount reported
• Export reported in wrong table
• Missing shipping bill details in GSTR-1
• Filing GSTR-1 after GSTR-3B incorrectly

Why This Step is Crucial

Even if:
✔️ You exported goods correctly
✔️ You paid IGST

But if GST returns are wrong…

❌ Refund will not process
❌ Errors like SB005 will be triggered

Step 4: Pay IGST

Pay IGST on your export invoice either using your Input Tax Credit or in Cash.

Step 5: Automatic Refund by Customs

Once data matches:

✔️ GSTR-1
✔️ GSTR-3B
✔️ Shipping Bill
✔️ EGM filed

Refund is credited directly to bank account

Documents Required for IGST Refund

Document	Importance
Export Invoice	Core document
Shipping Bill	Refund trigger
Bill of Lading / Airway Bill	Shipment proof
EGM	Export confirmation
GST Returns	Compliance proof

Benefits of Export with Payment of Tax

1. Faster Refund Processing

• No need to file RFD-01 manually

2. Fully Automated System

• Customs + GST integration

3. Better Cash Flow Planning

• Predictable refund timelines

4. Ideal for Growing Exporters

• Especially high-volume exporters

Common Mistakes That Delay IGST Refund

Data Mismatch Issues

• Invoice number mismatch
• Value mismatch

Filing Errors

• Incorrect Table 6A reporting
• Wrong GSTIN

Logistics Errors

• EGM not filed
• Wrong port code

Compliance Issues

• GSTR-1 Wrongly filed
• GSTR-3B Wrongly filed

Conditions to Successfully Claim Refund

✔️ GST registration must be active
✔️ Export must be completed (EGM filed)
✔️ Returns must be filed correctly
✔️ Bank account must be validated

Practical Example

• Export Value: ₹20,00,000
• IGST @18% = ₹3,60,000

➡️ You pay ₹3.6 lakh IGST
➡️ After validation → ₹3.6 lakh refunded

👉 Final tax burden = ZERO

IGST vs LUT – Which is Better?

Criteria	IGST Route	LUT Route
Tax Payment	Yes	No
Refund Type	IGST	ITC
Speed	Fast	Moderate
Complexity	Low	Medium

When Should You Choose IGST Route?

Choose this option if:

✔️ You want quick refunds
✔️ You have sufficient ITC balance
✔️ You prefer automation over paperwork

Avoid if:

❌ Working capital is tight
❌ You want zero upfront tax payment

Common IGST Refund Errors & Fix

Error Code	Meaning	Solution
SB005	Invoice mismatch	Amend GSTR-1
SB002	EGM missing	Contact GST Refund Samadhan
SB003	GSTIN issue	Correct GST details
SB006	Port mismatch	Update shipping bill

Conclusion

Export with Payment of Tax (IGST Route) is Fast, Reliable, Automation-driven. It is one of the most preferred methods for exporters in India to ensure quick GST refunds and smooth compliance.

About GST Refund Samadhan

If you’re facing Refund delays ICEGATE errors GST mismatches GST Refund Samadhan Team helps exporters:

• Recover stuck refunds
• Fix compliance issues
• Maximize refund claims