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GST Return Filing for Manufacturers & Exporters in Chennai: 3 Mistakes That Cost You Refunds

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If you’re a manufacturer or exporter in Chennai, there’s a good chance you have money sitting with the government right now that you haven’t claimed back. When you export goods, the government doesn’t charge GST on that sale — but the tax you already paid on your raw materials, packaging, and other business costs is refundable, and a lot of businesses leave that money unclaimed simply because the paperwork wasn’t filed correctly or on time. This page explains, in plain terms, what actually goes wrong — and what it costs to have it handled properly, starting at ₹5,990 + GST per year for up to 30 bills a month. Prefer to just call? Reach us on 70 9232 9232.

How GST export refunds work for manufacturers and exporters
Table of Contents

Why manufacturer and exporter GST filing is genuinely different

Exports are treated specially under GST law — you don’t charge your foreign buyer any GST on the sale. But that doesn’t mean the tax you paid earlier in the process just disappears. You’re entitled to get it back, in one of two ways: either you sign a yearly form (called a Letter of Undertaking, or LUT) that lets you export without paying tax upfront at all, and then claim back the tax you paid on your raw materials and costs — or you pay the tax on the export and claim a full refund of that afterwards. Most exporters choose the LUT route, since it doesn’t tie up cash upfront.

The LUT has to be renewed every year — and if it lapses, you start paying tax you shouldn’t

This is the single most common gap we find. The Letter of Undertaking isn’t a one-time form — it has to be renewed at the start of every financial year. If it lapses and nobody notices, you’re required to pay GST on your exports until a new one is filed, even though you’re legally entitled to export tax-free. We’ve seen exporters pay tax unnecessarily for months simply because their LUT quietly expired and nobody was tracking the renewal date.

Getting your refund actually paid out is its own separate battle

Claiming a refund of the tax you paid on raw materials isn’t automatic — it depends on your purchase records matching what your suppliers have reported to the government. If a supplier is late filing their own return, or reports a slightly different figure, your refund claim can get held up or rejected until it’s sorted out. Manufacturers who don’t check this every month often find a large refund stuck for far longer than it should be, simply because nobody caught the mismatch early.

Your export paperwork and your GST filing have to tell the same story

The shipping documents you file with customs and the sales figures you report in your GST filing need to match. Even small differences — a rounding issue, a shipment reported in the wrong month — can delay a refund or draw a query from the tax department. This matters more for manufacturers shipping in bulk, where a small percentage error can still be a meaningful amount of money.

What we actually do for manufacturers and exporters

  • LUT renewal tracking — we renew your Letter of Undertaking every financial year before it lapses, so you never end up paying tax you don’t owe.
  • Monthly refund-eligibility checking — we match your purchase records against what your suppliers have actually reported, so refund claims don’t get stuck on preventable mismatches.
  • Export documentation matching — your shipping records and GST filing kept consistent, month to month.
  • GST return filing — filed correctly and on time, every month.
  • Direct access to your consultant — no call centre, no automated menus, the same person every month.

Pricing — fixed, no hidden charges

GST return filing starts at ₹5,990 + GST per year for up to 30 bills a month. Manufacturers and exporters often run higher transaction volumes and more complex refund claims — call 70 9232 9232 and our sales team will work out a fair price with you directly, based on your real volume. Fixed pricing, no hidden charges either way.

3 mistakes we see manufacturers and exporters make

1. Letting the Letter of Undertaking lapse

This is the single biggest and most avoidable mistake. It has to be renewed every financial year, and missing the renewal means paying tax you’re legally entitled to skip.

2. Not checking supplier mismatches before claiming a refund

If your suppliers haven’t filed their own returns correctly or on time, your refund claim can be held up through no fault of your own — but only if nobody’s checking for this every month.

3. Letting shipping records and GST filing drift apart

Small, uncorrected differences between what customs shows and what your GST filing shows add up over time, and can delay or shrink a refund that’s rightfully yours.

Frequently asked questions

Do I have to pay GST on goods I export?

No — exports are tax-free for your foreign buyer. But you can only skip paying tax upfront if you have a valid Letter of Undertaking (a yearly form) on file. Without it, you’re required to pay tax on the export and claim it back afterwards, which ties up your cash unnecessarily.

What is a Letter of Undertaking, and how often do I need to renew it?

It’s a form that lets you export without paying GST upfront. It has to be renewed at the start of every financial year — if it lapses, you’re required to pay tax on your exports until a new one is filed.

Why is my GST refund taking so long to come through?

Usually because of a mismatch between your purchase records and what your suppliers have reported to the government. This needs to be checked and corrected before filing the refund claim, not after it’s already stuck in process.

What does GST return filing cost for a manufacturer or exporter?

GST return filing starts at ₹5,990 + GST per year for up to 30 bills a month. Above that volume, call 70 9232 9232 and our sales team will give you a fair price based on your real transaction volume — fixed pricing either way.

Do you only work with exporters in Chennai, or across Tamil Nadu too?

We’re based in Teynampet, Chennai, and work with manufacturers and exporters across Tamil Nadu. Everything is handled over phone and WhatsApp, so your location doesn’t affect how we work with you.

GST filing looks different depending on your business — here’s how it works for other industries we cover:

Talk to a consultant who actually tracks your refunds, not a call centre

If you’re a manufacturer or exporter in Chennai and want your refunds and renewals actually tracked every month instead of forgotten until money’s already been lost, call or WhatsApp us at 70 9232 9232. We’re rated 5.0★ across 1,000+ Google reviews, serving Chennai and Tamil Nadu businesses since 2017 — you’ll speak directly to the consultant handling your filing, not a rotating support queue.

Reconciling ITC across multiple vendors and states? See our GST Reconciliation & ITC mismatch guide.

Setting up a new manufacturing or export entity? GST Registration starts at ₹1,500. Already registered and just need ongoing filing? See our full GST Return Filing service.

Call Now — 70 9232 9232