GST On Exports Zero-Rated Supply, LUT Filing And Refund Of Accumulated ITC

GST on Exports: Zero-Rated Supply, LUT Filing and Refund of Accumulated ITC

 

If you are an exporter or work with a business that does international trade, you've probably heard the term 'zero-rated supply' thrown around quite a bit. But honestly, a lot of people even some seasoned businessmen get confused about what it actually means in the context of GST, and more importantly, how to actually avail the benefits that come along with it.

In this blog, I'll try to break down the whole thing in a simple and practical manner. We'll cover what zero-rated supply means, the importance of LUT (Letter of Undertaking), and how you can claim refund of Input Tax Credit (ITC) that gets accumulated because of exports. So, let’s get into it.

 What is Zero-Rated Supply?

Under the GST law not everything is taxed. Some supplies are 'exempt', some are 'nil-rated' and then there are 'zero-rated' supplies. Now these terms sound similar but they are very different in practice, and mixing them up can cost you literally.

As per Section 16 of the IGST Act, the following are treated as zero-rated supplies:

• Export of goods or services or both
• Supply to a Special Economic Zone (SEZ) unit or SEZ developer

The key difference between exempt supply and zero-rated supply is this for exempt supplies, you CANNOT claim ITC. But for zero-rated supplies, you CAN. That's a huge deal for exporters because they spend a lot on inputs raw materials, services etc. and paying GST on all of that without getting it back would make Indian exports uncompetitive in the global market.

So, in simple terms, zero-rated means: no GST on the output, but full credit on inputs. The government's idea is to export goods and services, not taxes. Makes sense, right?

Two Ways to Export Under GST

When it comes to actually making the export, a registered exporter has two options available under GST law:

Option 1: Export Under Bond/LUT Without Payment of IGST

This is the most popular route and honestly the more practical one for most exporters. Under this option, you export goods or services without paying IGST, by furnishing a Letter of Undertaking. Later, you can claim refund of the unutilised ITC that has piled up in your electronic credit ledger.

Option 2: Export With Payment of IGST

Here, you pay IGST on exports and then claim refund of that tax paid. This option is less common because it involves an upfront cash outflow. However, in some cases — particularly where the exporter doesn't have much ITC  this option might actually be simpler and faster.

LUT Filing — What It Is and Why You Need It

Alright so if you're going with Option 1 which most people should you need to file a LUT before you make any export. A LUT is essentially a declaration you give to the government saying. 'I will comply with all GST export rules and complete the export within the prescribed time period.' Think of it as a promise note.

Who is eligible to furnish LUT?

Any registered person can file an LUT for export of goods or services, EXCEPT those who have been prosecuted for tax evasion exceeding Rs. 2.5 crore under CGST Act, IGST Act or any existing law. So, unless you have a serious criminal tax matter pending, you are eligible.

How to file LUT — Step by Step

• Log in to GST portal (www.gst.gov.in)
• Go to Services > User Services > Furnish Letter of Undertaking (LUT)
• Select the financial year for which LUT is being filed
• Fill in the required details (GSTIN, name, address, witnesses etc.)
• Submit with DSC or EVC

One important point — LUT is valid for the entire financial year. So, you need to renew it every year at the start of the new FY. A lot of exporters forget this and then land in trouble because they've already shipped goods without a valid LUT. Don’t let this happen to you.

Also, the LUT can be filed in advance. Best practise is to file it before March 31 itself for the upcoming financial year so there's no gap. Even a single day without valid LUT technically makes your export liable to IGST, which then you'll have to pay and then claim refund — unnecessary hassle.

ITC Accumulation in Export Business — The Refund Problem

Now here's the real bread-and-butter issue for any exporter. When you export goods or services without paying IGST using LUT the GST you've already paid on your purchases your inputs just sit in your electronic credit ledger. It keeps piling up. You can't use it to offset output tax liability because you're not charging output tax on exports. And if you don't claim refund, that money is basically stuck.

This is what's called 'accumulated ITC' and the law allows you to claim a refund of this under Section 54 of the CGST Act. Specifically, Rule 89 of CGST Rules lays down the procedure and formula for calculating the refund amount.

 

The Refund Formula (Rule 89)

Maximum Refund Amount = (Turnover of zero-rated supply of goods + Turnover of zero-rated supply of services) ÷ Adjusted Total Turnover × Net ITC

Let me break this down a bit:

• Net ITC = ITC availed on inputs and input services during the period (excluding ITC on capital goods)
• Adjusted Total Turnover = Total turnover in a State/UT minus the value of exempt supplies (other than zero-rated) and certain other adjustments
• The refund is always limited to the Net ITC proportionate to export turnover

How to File GST Refund — The Process Explained

Claiming GST refund is done through Form RFD-01 on the GST portal. Let me walk you through the process in a straightforward way.

• Step 1: File all your GSTR-1 and GSTR-3B returns for the relevant period. Refund will not be processed if returns are pending.
• Step 2: Log in to GST portal, go to Refunds > Application for Refund > Select Refund of ITC on account of Export of Goods/Services without payment of tax.
• Step 3: Select the tax period for which refund is being claimed
• Step 4: The system will auto-populate data from GSTR-1 and GSTR-3B. Verify figures carefully before submitting.
• Step 5: Upload supporting documents if required shipping bills, export invoices, bank realisation certificates depending on case
• Step 6: Submit RFD-01 using DSC or EVC. You get an ARN Application Reference Number for tracking.

Now practically speaking, the tax officer is supposed to acknowledge the application within 15 days and issue an order for provisional refund of 90% of the amount within 7 days of acknowledgement for goods exporters. But in my experience, the timelines don’t always work out this smoothly. Follow up is often necessary.

NOTE: -There is a time limit for filing refund claims. You must file within 2 years from the relevant date. For exports, the relevant date is generally the date of export date on which ship/aircraft departs India. Missing this deadline means you forfeit the refund. So please don't sit on it.

Common Mistakes Exporters Make (And How to Avoid Them)

After working with several export-oriented businesses, I've seen the same mistakes come up again and again. Here are the most common ones:

• Not filing LUT on time: This is probably the most frequent issue. Exporter ships goods but LUT wasn't filed or was expired. Now they're technically liable to pay IGST on the entire export value. Always renew your LUT before April 1 every year.
• GSTR-1 data mismatch with shipping bills: If the invoice details you report in GSTR-1 don't match what's in the shipping bill customs data the refund application will face issues. Make sure invoice numbers, amounts, and GSTIN all match exactly.
• Claiming ITC on non-eligible items: Some people try to include ITC on capital goods or blocked credits (Section 17(5)) in their refund calculation. This is not allowed and will get your refund rejected or reduced.
• Forgetting Bank Realisation Certificate (BRC) for services: For export of services, you eventually need to show foreign exchange receipt. Ensure your bank provides BRC or FIRC (Foreign Inward Remittances Certificate) in a timely manner.
• Waiting too long to claim refund: With a 2-year deadline, some people think they have plenty of time. But considering the back and forth with the tax department, it’s better to file claims every quarter rather than accumulating them.

A Quick Note on SEZ Supplies

Many people focus only on exports to foreign countries and forget that supplies to SEZ units are also zero-rated. If you are supplying goods or services to a SEZ developer or a unit operating inside an SEZ, the same provisions apply  you can supply without paying IGST with LUT and claim refund of accumulated ITC.

Just make sure you have the proper SEZ endorsement on the invoices and that the SEZ unit gives you the required endorsement on the tax invoice. This documentation is critical for your refund claim to go through smoothly.

Final Thoughts

GST on exports is actually a well-designed system once you understand how it works. The government genuinely wants to make Indian exports competitive, and the zero-rated supply mechanism along with LUT and ITC refund is the way they've tried to achieve that. But the process has its complications and you need to stay on top of filings, deadlines and documentation.

If you are an exporter and haven't been claiming your ITC refunds regularly, you might be sitting on significant blocked funds. That working capital could be put to much better use in your business.

As always, the specifics of each case vary. An exporter dealing in goods will have slightly different documentation requirements compared to a service exporter. And if you have a mix of domestic and export turnover, the calculations become more nuanced. It's advisable to work with a GST professional to ensure you are maximizing your legitimate refund entitlement without errors.