The Rock Fort City — Trichy is home to BHEL's largest manufacturing facility for power plant equipment, a major artificial jewellery and cigar manufacturing cluster, and top engineering colleges. For every goods exporter, service exporter, and IT company in Tiruchirappalli, Tamil Nadu that raises invoices to foreign clients — the GST Letter of Undertaking (LUT) is the single most important compliance document of the financial year. Without a valid LUT, your only option is to pay 18% IGST on every export invoice and wait months for a refund — tying up lakhs of working capital that your business cannot afford to lose. TaxAMC's CA team files LUTs for exporters across Tiruchirappalli — quickly, accurately, and annually — ensuring you never pay IGST on export invoices and never miss an export incentive for lack of a valid LUT.
💡 File your GST LUT in Tiruchirappalli before your next export invoice — our CA team completes LUT filing in 1–3 working days. Zero IGST on exports. Maximum cash flow. WhatsApp Us Now →
1. What is GST LUT and How Does It Work for Tiruchirappalli Exporters?
Under GST, exports of goods and services are zero-rated supplies — meaning the GST rate on exports is 0%. However, to export at 0% without paying any GST upfront, you must either:
- File a Letter of Undertaking (LUT) — a formal declaration on the GST portal promising that you will fulfil all export obligations without paying IGST; OR
- Execute a Bond — a legal bond (with or without a bank guarantee) committing to pay IGST + penalty if the export conditions are not met; OR
- Pay IGST and claim a refund — export with IGST payment and file a GST refund claim after the export is completed.
For virtually all regular exporters in Tiruchirappalli, LUT is the best option — it is free, renewable annually, does not require a bank guarantee, and eliminates all IGST cash outflow on exports.
How the LUT mechanism works in practice:
- You file the LUT on the GST portal for the current financial year — TaxAMC does this in April
- Your LUT reference number is noted — this must be quoted on all export invoices during the year
- You raise a zero-rated export invoice to the foreign buyer with 0% IGST — the LUT reference number is mentioned
- Foreign buyer pays in foreign currency — you receive USD/GBP/EUR in your bank account
- No IGST is collected, no IGST is paid, no refund needs to be claimed — zero GST cash flow impact
- The export is declared in GSTR-1 under the "Exports with LUT" category — no GST payment in GSTR-3B for these transactions
Ready to start exporting zero-rated from Tiruchirappalli? TaxAMC files your LUT in 1–3 working days — zero IGST on exports from your very next invoice.
File My LUT Now →2. LUT vs IGST Payment — Cash Flow Comparison for Tiruchirappalli Exporters
The financial advantage of LUT over IGST-paid exports is enormous for any Tiruchirappalli exporter with meaningful export volume:
| Metric | Exporting with LUT | Exporting with IGST Payment + Refund |
|---|---|---|
| GST on export invoice | 0% — zero IGST charged or paid | 18% IGST paid to government at time of export |
| Cash outflow on ₹10L export | ₹0 | ₹1,80,000 locked with government |
| Refund claim required? | No | Yes — file GST refund claim after export |
| Average refund waiting period | N/A | 30–90 days (can be longer with queries) |
| Interest cost on blocked capital (₹1.8L for 60 days @ 12%) | ₹0 | ₹3,600 lost per ₹10L export |
| Annual cash flow on ₹1 crore exports | Fully free — ₹0 locked | ₹18,00,000 locked for 60 days average |
| Compliance effort | Annual LUT filing once — very simple | GST refund application for every shipment — significant effort |
| Risk | None (if LUT conditions met) | Refund may be queried, delayed, or partially denied |
⚠️ For a Tiruchirappalli exporter doing ₹1 crore in annual exports, operating without an LUT means ₹18 lakh in working capital is locked with the GST department at any given time. This money could be used for inventory, operations, or growth. TaxAMC's LUT filing costs a fraction of this — it is one of the highest-ROI compliance services for any exporter.
Not yet using LUT for your exports from Tiruchirappalli? Our CA team quantifies exactly how much working capital you are losing and files your LUT immediately.
Calculate My LUT Benefit →3. Who Can File a GST LUT in Tiruchirappalli?
LUT is available to any GST-registered person who exports goods or services — with one exception:
- ✅ Manufacturers exporting goods — any industry, any product category
- ✅ Trading companies exporting purchased goods — merchant exporters
- ✅ IT and software companies exporting software, SaaS, or technical services
- ✅ Consulting firms billing international clients for professional services
- ✅ Design and creative agencies supplying services to foreign clients
- ✅ Freelancers and individual service providers with foreign clients
- ✅ Engineering service firms — architecture, structural, civil engineering exports
- ✅ Healthcare and telemedicine — medical services to international patients
- ✅ Educational institutions — online courses to foreign students
- ❌ Ineligible: Taxpayers prosecuted under CGST/IGST Act for tax evasion of ₹2.5 crore or more
Not sure if your Tiruchirappalli business is eligible for LUT? Our CA team confirms your eligibility and files in 1–3 working days.
Check My LUT Eligibility →4. Documents Required for GST LUT Filing in Tiruchirappalli
LUT filing is entirely online on the GST portal — no physical documents are submitted. However, you must provide these to TaxAMC for accurate filing:
📄 Documents to Share with TaxAMC for LUT Filing
- GSTIN — your GST registration number (15-digit). TaxAMC retrieves your existing GST details from the portal.
- PAN of the entity — company, LLP, partnership, or individual.
- Authorised signatory details — name, designation, PAN, Aadhaar, and mobile number of the person who will sign the LUT declaration (director/partner/proprietor).
- Previous year LUT reference number — if you had an LUT in the previous year, this helps TaxAMC verify continuity and any conditions.
- Bank account details — primary business bank account where foreign remittances are received (for your records — not submitted in LUT filing).
- Export invoice format — TaxAMC reviews your current export invoice template to ensure the LUT reference number and 'Supply meant for export under LUT without payment of IGST' declaration is correctly stated.
- IEC (Import Export Code) — for goods exporters, IEC is required at the time of actual export. TaxAMC also assists with IEC registration if not yet obtained.
- For company/LLP signatories: DSC (Digital Signature Certificate) of the authorised signatory — required for online LUT filing. TaxAMC can arrange DSC if not available.
📄 Post-LUT Filing — Documents for Each Export Transaction
- LUT reference number — received after filing, must be quoted on every export invoice under the LUT.
- Export invoice — must state: 'Supply meant for export under LUT without payment of IGST' + LUT reference number.
- Shipping bill / bill of lading (for goods exports) — customs declaration that the goods have been exported — required for GSTR-1 reporting of export.
- FIRC / Bank Realisation Certificate — Foreign Inward Remittance Certificate from your bank confirming receipt of foreign currency payment — required to complete the export obligation under the LUT.
- Export contract / purchase order from foreign buyer — supports the genuineness of the export transaction if queried by GST authorities.
Share these details with TaxAMC's CA team in Tiruchirappalli via WhatsApp — LUT filed in 1–3 working days.
Send My LUT Documents →5. How TaxAMC Files Your LUT in Tiruchirappalli
📝 100% online — LUT filed on the GST portal in 1–3 working days. No physical office visit, no paperwork, no delays. You receive the LUT reference number to quote on your export invoices immediately.
- Eligibility check: Our CA team verifies your GST registration status and confirms LUT eligibility before proceeding
- Authorised signatory setup: We ensure the correct person is set up as the authorised signatory on the GST portal — required for LUT acceptance
- DSC verification: Digital Signature Certificate of the signatory verified and linked to the portal if not already done
- LUT application filing: Form GST RFD-11 filed on the GST portal with all required declarations — the taxpayer undertakes to pay IGST + interest if the export conditions are not fulfilled within the allowed time
- LUT reference number: Upon successful filing, the GST portal generates an LUT reference number — shared with you immediately
- Invoice template update: TaxAMC reviews your export invoice template and ensures the correct LUT declaration statement is included for compliance
- Annual renewal reminders: TaxAMC sends renewal reminders every March — and renews your LUT in April before the new financial year's first invoice
Timeline: 1–3 working days after receiving your details
Need your LUT filed urgently in Tiruchirappalli? WhatsApp our CA team now — we file your LUT in 1–3 working days so you can export zero-rated immediately.
File My LUT Urgently →6. LUT for Service Exporters in Tiruchirappalli — IT, Consulting, Freelancers
Service exports are the fastest-growing export category in India — and Tiruchirappalli has a significant base of IT companies, consulting firms, and individual freelancers earning in foreign currency. All of them benefit from LUT.
What qualifies as service export (eligible for LUT) for Tiruchirappalli businesses:
- Software development, maintenance, and testing services to foreign clients
- IT enabled services — BPO, KPO, data analytics, call centre services
- Management and business consulting to international companies
- Legal and financial advisory to foreign entities
- Digital marketing, SEO, content marketing services to foreign clients
- Design services — graphic design, UI/UX, product design for international companies
- Architecture and engineering services — drawings and specifications for projects abroad
- Medical consultation, telemedicine, and healthcare advisory to foreign patients
- Online teaching, e-learning content, course creation for international students
- Video production, content creation, animation for foreign clients
- Research and development services for foreign companies
Conditions for service to qualify as "export" (zero-rated):
- The supplier (your Tiruchirappalli business) must be in India
- The recipient (foreign client) must be outside India
- The place of supply must be outside India
- Payment must be received in convertible foreign exchange (USD, GBP, EUR, etc.) — or in INR credited from a foreign currency account (vostro account)
- The supplier and recipient must not be merely establishments of the same legal entity
⚠️ Service exporters in Tiruchirappalli who receive foreign currency but don't file an LUT are technically out of compliance on zero-rated exports. While the practical immediate risk may be lower than for goods exporters, the GST department can still demand IGST on the export value without a valid LUT. TaxAMC files LUTs for all service exporters — eliminating this risk entirely.
IT company, consultant, or freelancer in Tiruchirappalli with foreign clients? Our CA team files your LUT in 1–3 days — so all your foreign invoices are correctly zero-rated.
File My Service Export LUT →7. Annual LUT Renewal — Why It Cannot Be Missed by Tiruchirappalli Exporters
LUT is valid for exactly one financial year — 1 April to 31 March. A new LUT must be filed at the start of every financial year before raising the first export invoice of that year.
Consequences of exporting without a valid (renewed) LUT:
- Invoices raised after March 31st without a new LUT are technically non-zero-rated exports
- IGST can be demanded on all such invoices — with 18% interest from the invoice date
- Export incentive claims (RoDTEP, drawback) may be rejected for invoices without valid LUT
- Banks may flag the foreign remittance as non-compliant if export documentation is incomplete
TaxAMC's annual LUT renewal service for Tiruchirappalli exporters:
- WhatsApp reminder sent every March — well before financial year end
- LUT renewed in the first week of April — before your first new-year invoice
- New LUT reference number shared immediately upon successful renewal
- Invoice template verified for the new year's LUT number
Want TaxAMC to manage your annual LUT renewal automatically every April for your Tiruchirappalli export business? Sign up for our annual export compliance package.
Set Up Annual LUT Renewal →8. What If You Exported Without LUT — IGST Refund Process in Tiruchirappalli
If you have already made exports from Tiruchirappalli without filing an LUT (and with IGST payment), you can claim a GST refund of the IGST paid. However, the refund process is significantly more complex and time-consuming than simply having an LUT in place.
IGST Refund process for Tiruchirappalli exporters:
- Automatic route (goods exports): IGST paid on export invoices is automatically processed for refund by the GST system after the shipping bill is filed at customs — typically 30–60 days if all data matches
- Manual route (service exports): Service exporters must file a formal refund application on the GST portal (Form GST RFD-01) with supporting documents
- Bank realisation requirement: Foreign payment must be received in the bank and confirmed with FIRC before the refund is processed
- Time limit for refund claim: Application must be filed within 2 years of the relevant GST return due date
- Common refund delays: Mismatches between GSTR-1 export data and shipping bill data, FIRC not submitted, bank realisation not complete, officer queries on export documentation
📄 Documents Required for GST Refund of IGST Paid on Exports
- Export invoices — all invoices on which IGST was paid and for which refund is claimed.
- GSTR-3B of the relevant months — showing IGST paid on exports.
- Shipping bill (goods exports) — customs document confirming export has taken place.
- FIRC / Bank Realisation Certificate — confirming receipt of foreign currency payment.
- Bank statement — showing receipt of foreign remittance correlated to each invoice.
- Export contract / purchase order — supporting the genuineness of the export transaction.
- Statement of invoices — summary of all export invoices for which refund is claimed (in prescribed format).
Already paid IGST on exports and need a refund? Or want to avoid this hassle going forward with an LUT? Our CA team in Tiruchirappalli handles both — file your refund claim and set up LUT for future exports.
Get My Export GST Sorted →9. Export Incentive Schemes That Require a Valid LUT in Tiruchirappalli
Several government export incentive schemes are only available to exporters who are GST-compliant — including having a valid LUT for zero-rated exports. Missing a LUT can disqualify your Tiruchirappalli business from these significant cash benefits:
| Scheme | Benefit | LUT Requirement |
|---|---|---|
| RoDTEP (Remission of Duties and Taxes on Exported Products) | Refund of embedded taxes and duties not rebated elsewhere — 0.5% to 4.3% of export value depending on product | Exports must be zero-rated with valid LUT for the shipping bill to be eligible |
| Advance Authorisation | Duty-free import of raw materials for export production — significant saving on input costs | Exporter must be GST-compliant with valid LUT |
| EPCG (Export Promotion Capital Goods) | Import capital goods at 0% customs duty against export obligation | Clean GST compliance including valid LUT required |
| Export oriented unit (EOU) benefits | Duty-free procurement of inputs and capital goods | GST compliance including LUT mandatory |
| Services Export from India Scheme (SEIS) / successor | Incentive rewards for service exporters | Zero-rated service exports with LUT required |
Want to claim export incentives like RoDTEP for your Tiruchirappalli business? Our CA team sets up LUT filing, IEC registration, and complete export incentive documentation.
Set Up My Export Incentives →10. Areas We Serve in Tiruchirappalli
TaxAMC provides services across all localities in Tiruchirappalli, including:
- Ariyamangalam Industrial Area
- Thuvakudi (BHEL Township)
- Srirangam
- Woraiyur
- Mannarpuram Commercial Zone
- Golden Rock
Also serving nearby cities: Madurai, Salem, Puducherry, Thanjavur.
11. Frequently Asked Questions — GST LUT in Tiruchirappalli
Q: How long does LUT filing take in Tiruchirappalli?
1–3 working days after receiving your GSTIN, authorised signatory details, and DSC. TaxAMC files on the GST portal — no physical visit required.
Q: Is LUT free to file?
Yes — there is no government fee for LUT filing. You pay only TaxAMC's professional fee for preparation and filing.
Q: My LUT expired on 31 March — can I raise export invoices in April without a new LUT?
No — you must file the new year's LUT before raising April invoices. TaxAMC renews LUTs for all clients in the first week of April every year.
Q: I am a freelancer/IT professional in Tiruchirappalli earning in USD from foreign clients — do I need an LUT?
Yes — if you are GST registered (above ₹20 lakh turnover), you should file an LUT so your foreign invoices are correctly zero-rated. Without LUT, there's a technical compliance gap. TaxAMC files LUTs for all service exporters in Tiruchirappalli.
Q: What happens if I don't fulfil the export obligation mentioned in the LUT?
If the export is not completed within the allowed time or payment is not received in foreign currency — IGST becomes payable with 18% interest. TaxAMC monitors export completion status and advises on LUT condition fulfilment.
Q: Can I have both LUT and export with IGST in the same financial year?
Yes — some exporters choose to pay IGST on some shipments (if they expect ITC refund to be convenient) and use LUT on others. TaxAMC advises on the optimal approach for your specific situation.
GST LUT in Tiruchirappalli — Zero IGST on Exports, Filed in 1–3 Days, Annual Renewal Managed
Goods exporters, IT companies, consulting firms, service exporters, freelancers — our CA team files GST LUT for all types of exporters in Tiruchirappalli, Tamil Nadu. Zero IGST on exports. Annual renewal. RoDTEP and incentive compliance. Serving Ariyamangalam Industrial Area, Thuvakudi (BHEL Township), Srirangam, Woraiyur.
File My LUT Now →Disclaimer: This article is for general informational purposes only and represents our professional views as Chartered Accountants. It does not constitute legal, tax, or financial advice. Laws and rates are subject to change. Please consult our CA team for situation-specific guidance before acting on any information herein.