GST for Manufacturers in Tamil Nadu: Registration, Tax Rates, ITC and Compliance

Tamil Nadu ranks among the leading states of India in terms of manufacturing and industry. As such, the state provides an ideal environment for companies that wish to invest in manufacturing sectors such as automobile, textiles, engineering, electronics, pharmaceuticals, and food processing. Given the existing industrial structure, skilled labour, and wide network of suppliers, there are many opportunities available for manufacturers. However, manufacturers operating in Tamil Nadu have to comply with the GST regulations on the purchase of raw materials, production, storage, and distribution of products. This includes registration, issuing of tax invoices, maintaining accounts, claiming eligible credits of input tax, and filing returns within the set deadlines.

The rules are the same whether your plant is in the Chennai–Sriperumbudur–Oragadam belt, Hosur, Coimbatore, Tiruppur, Madurai or Salem. What changes is the type of goods you make, how much of your work goes to job workers, and whether you export. This guide covers all of it, with the thresholds and due dates that apply in Tamil Nadu.

Need a GSTIN for your factory? See our GST registration in Tamil Nadu service.

GST for Manufacturers

GST for manufacturers applies to the goods they manufacture and sell, and to any services they provide as well. Manufacturing entities need to adhere to GST laws in respect of registration, classification of products, issuing tax invoices, filing returns, and paying the appropriate amount of GST. An eligible Input Tax Credit (ITC) can be availed by manufacturing entities in respect of GST paid on raw material, inputs, and capital goods, up to statutory constraints and limitations. Maintaining records of purchases, manufacturing process, stock, and sales is also essential. Compliance with e-invoicing and e-way bills depends upon the turnover and activities of the entity.

Who counts as a manufacturer? Under Section 2(72) of the CGST Act, manufacture means processing raw material or inputs in any manner that results in a new product with a distinct name, character and use. Simple trading, repacking without a change of character, or sorting is not manufacture, and the difference matters for the composition scheme, for the rate and for your ITC position.

GST in Tamil Nadu

Goods and Services Tax (GST) is an indirect tax that is charged on the supply of goods and services in India. This tax came into effect on July 1, 2017. It replaced central excise duty (except on a few products), service tax and the Tamil Nadu VAT with a single tax administered jointly by the Centre and the Tamil Nadu Commercial Taxes Department.

1. Structure of GST in Tamil Nadu: The structure of GST in Tamil Nadu follows the national structure of GST. Typically, any intra-state supply is charged CGST and SGST (under the Tamil Nadu Goods and Services Tax Act, 2017), and inter-state supply is charged Integrated GST (IGST).
2. GST Registration: GST registration is required when a business’s aggregate turnover crosses the prescribed limit or when it falls under compulsory registration. Requirements depend on the business activity and turnover, among other factors. Your Tamil Nadu GSTIN starts with 33, the state code, followed by your PAN.
3. GST Rates: The rate depends on the nature of the goods. To find the relevant rate, businesses need to ascertain the HSN code. Since 22 September 2025, most goods fall under 5% or 18%, with 40% for select luxury and sin goods.
4. GST Returns and Payment: The relevant GST returns should be submitted, declaring taxable transactions and paying GST liabilities, within the due dates. Input Tax Credit can be claimed on fulfilling the statutory conditions and limits.
5. Compliance and Administration: GST compliance involves maintaining invoices and accounts, adjusting input tax credit, preparing e-way bills where required, and following e-invoicing rules where applicable. Your registration is assigned to a state tax or central tax officer based on your address and turnover.
6. Advantages for Business: GST promotes inter-state transactions, eliminates cascading taxes through input tax credits, increases transparency, and aids business expansion in India.

Key Compliance Requirements for Manufacturers in Tamil Nadu

Manufacturing companies doing business in Tamil Nadu have to abide by the Goods and Services Tax (GST) regime that deals with the production, storage, sale and movement of goods. Key GST compliance requirements include the following:

1. GST Registration

• It is essential for manufacturers to get GST registration if their aggregate turnover is more than the specified threshold limit or if mandatory registration applies. Aggregate turnover is calculated on a PAN basis across India, and includes taxable, exempt and export supplies.
• In Tamil Nadu, suppliers dealing exclusively in goods have a threshold of ₹40 lakh, while suppliers of services, or of both goods and services, have ₹20 lakh. Manufacturers of ice cream, pan masala and tobacco products must register irrespective of turnover limits. Registration must be applied for within 30 days of becoming liable, and voluntary registration is also possible.
• Operating without registration when liable can attract a penalty of ₹10,000 or the tax evaded, whichever is higher, along with the tax and interest due.

Documents for manufacturers generally include PAN and Aadhaar of the proprietor, partners or directors, photographs, proof of the factory or office address (rent agreement with owner’s NOC, or sale deed or property tax receipt, and a latest electricity bill), bank account proof, and the constitution documents (partnership deed, LLP agreement or certificate of incorporation). Companies and LLPs also need a DSC. A Udyam registration is useful for MSME manufacturers but is not a precondition for GST.

2. Classification of Goods & GST Rates

• Manufacturers need to identify the right HSN code and GST rate for each of their products.
• This helps them avoid the risk of tax claims, interest payments and penalties.
• Manufacturers should also check whether their products fall under exemptions or concessional rates.
• GST 2.0 changed many rates from 22 September 2025. Most goods now fall under 5% or 18%, with 40% for select luxury and sin goods. Invoices for supplies made before that date, and stock bought at the old rates, need careful handling, and credit notes may be required where rates fell.
• HSN digits on invoices: 4 digits where aggregate turnover is up to ₹5 crore and 6 digits above ₹5 crore. Exports use 8-digit codes.

3. Issuance of Tax Invoice as Per GST Rules

• It is important for manufacturers registered under GST law to give a tax invoice for all taxable supplies.
• Such an invoice should include GSTIN, invoice number, date, HSN code, taxable value, GST rate and tax amount.
• Invoice numbers must be unique within a financial year. A composition dealer issues a bill of supply instead of a tax invoice.
• Goods sent to a job worker or moved between your own units go under a delivery challan, not a tax invoice.

4. Maintenance of Correct Accounts and Records

• Manufacturers have to maintain accounts and records regarding purchases of raw material, inputs consumed, final products, stock maintained, supplies made, input tax credit taken, and payment of taxes.
• Maintaining accurate records of production, wastage, scrap, and stock transfer helps in filing GST returns properly.
• Sale of scrap and waste is a taxable supply and must be invoiced and reported. Records are to be kept for the period prescribed under GST law, generally 72 months from the due date of the annual return.
• Good accounting software saves time here. Our GST invoicing and filing software and accounting services support manufacturers.

5. Filing of GST Returns

• Regular taxpayers generally file GSTR-1 for reporting outward supplies and GSTR-3B for tax liabilities along with payment of the respective taxes.
• Eligible taxpayers with aggregate turnover up to ₹5 crore can opt for the QRMP scheme, provided that certain criteria are fulfilled. Manufacturers need to reconcile their sales entries, purchase invoices, tax liabilities, and payments while filing GST returns.
• A GSTR-1 and GSTR-3B mismatch is one of the most common notice triggers. See common mistakes in GST return filing or let us handle your GST return filing.

Return	Who Files It	Due Date
GSTR-1	Monthly filers	11th of the next month
GSTR-1 (QRMP)	Quarterly filers up to ₹5 crore	13th of the month after the quarter. Optional IFF for B2B invoices by the 13th of the first two months.
GSTR-3B	Monthly filers	20th of the next month
GSTR-3B (QRMP)	Quarterly filers	22nd of the month after the quarter (Tamil Nadu falls in the 22nd group). Tax for the first two months is paid by the 25th through PMT-06.
CMP-08 and GSTR-4	Composition dealers	CMP-08 by the 18th after each quarter, and GSTR-4 annually by 30 April
ITC-04	Manufacturers sending goods to job workers	By the 25th after the quarter for turnover above ₹5 crore, and half-yearly for turnover up to ₹5 crore
GSTR-9	Regular taxpayers above ₹2 crore	31 December after the financial year

Due dates are sometimes extended by notification, so confirm on the GST portal before you file. Missing a return attracts a late fee of ₹50 a day (₹20 a day for nil returns), plus 18% interest on tax paid late.

6. Taking Input Tax Credit (ITC)

• Manufacturers can take input tax credit on their GST payments on raw materials, inputs, input services, and capital goods which are consumed for the manufacturing process, but within certain statutory limits and restrictions.
• They need to reconcile their purchase entries with GSTR-2B, supplier compliances, tax invoices, and disallowable ITC. Credit is available only when the invoice appears in your GSTR-2B, the goods are received, and the supplier has actually paid the tax.
• The last date to claim ITC for a financial year is 30 November following the year-end, or the date of filing the annual return, whichever is earlier.
• ITC is blocked under Section 17(5) on items such as motor vehicles (seating up to 13), food and beverages, and goods or services used to construct a factory building or other civil structure on your own account. Credit on plant and machinery is allowed. Read our guide to blocked credit under GST and the basics of input tax credit.
• Credit must be reversed for inputs used for exempt supplies, for goods lost, stolen or written off, and where payment to the supplier is not made within 180 days. If monthly taxable supplies exceed ₹50 lakh, Rule 86B requires at least 1% of the output tax to be paid in cash, with some exceptions.

7. E-Way Bill Rules

• Manufacturing companies are obliged to issue an e-way bill when specific conditions exist.
• Generally, an e-way bill is needed when the consignment value exceeds ₹50,000, excluding some exceptions. Tamil Nadu has fixed a higher limit of ₹1 lakh for movement entirely within the state, while inter-state movement follows the ₹50,000 limit.
• Along with the movement, the invoice or delivery challan and the e-way bill are to be carried by the transporter. An e-way bill is valid for one day for every 200 km.
• Part A holds the invoice and consignment details, and Part B holds the vehicle details. See our guides on the e-way bill under GST, e-way bill limits by state . Generate it on the e-way bill portal.
• Moving goods without a valid e-way bill can lead to detention of the goods and vehicle and a penalty under Section 129. Failing to file returns for two consecutive tax periods can also block e-way bill generation.

8. E-Invoicing Requirements

• Companies in the manufacturing sector that exceed the required turnover limit should abide by the e-invoicing rules for notified invoices.
• The turnover threshold is ₹5 crore of aggregate turnover in any financial year from 2017-18 onwards. Once crossed, it applies permanently.
• The invoices are to be reported on the Invoice Registration Portal, which issues an IRN and QR code. Taxpayers with aggregate turnover of ₹10 crore and above must report an invoice within 30 days of its date.
• E-invoicing covers B2B supplies, exports and supplies to government.

9. GST Payment and Reconciliation

• Manufacturers must pay CGST and Tamil Nadu SGST on qualifying intra-state supplies of goods, as well as IGST on qualifying inter-state supplies.
• It is important to reconcile tax payments with computerised books of accounts, invoices, and returns, so as to avoid underpayment, over-claim of credits and liability for interest.
• Interest is 18% a year on tax paid late, and 24% a year on ITC wrongly availed and utilised.

10. Annual Returns and Assessments

• It is compulsory for registered manufacturers with aggregate turnover above ₹2 crore to file GSTR-9, and those above ₹5 crore also file GSTR-9C, the reconciliation statement, in the prescribed formats.
• It is imperative for manufacturers to respond promptly to any GST notices issued to them, keep proper records, and undergo evaluation or audits as per the requirements of law.
• Received a notice? Our team handles GST notice reply and GST annual return filing.

11. Job Work Compliance

Job work is part of everyday manufacturing in Tamil Nadu, from garment units in Tiruppur to engineering units in Coimbatore. Under Section 143 of the CGST Act, a principal manufacturer can send inputs to a job worker without paying GST if the inputs come back within one year. For capital goods, the limit is three years. If goods are not received back in time, the principal is treated as having made a supply, and GST with interest becomes payable. The principal reports the movement in Form ITC-04 and sends the goods under a delivery challan. The job worker charges GST on the job work service, generally at 5% for manufacturing services on goods belonging to a registered person, and 18% for other cases. Confirm the rate for your service code.

12. Composition Scheme for Small Manufacturers

Manufacturers with aggregate turnover up to ₹1.5 crore can opt for the composition scheme under Section 10 and pay 1% of turnover (0.5% CGST and 0.5% SGST). The trade-offs are significant. You cannot claim ITC, cannot make inter-state supplies, must issue a bill of supply and cannot collect GST from customers. Manufacturers of ice cream, pan masala, and tobacco are not eligible. If your buyers are other registered businesses who want ITC, the regular scheme is usually better. Our GST advisory services team can run the comparison for your numbers.

13. Exports and Letter of Undertaking (LUT)

Exports are zero-rated supplies. You can export without paying IGST under a Letter of Undertaking filed each financial year, and claim a refund of unutilised ITC, or you can pay IGST and claim a refund. Tamil Nadu’s large export base, including knitwear, leather and engineering goods, makes this a core compliance for many units. See GST LUT filing and, if you are starting to export, IEC registration.

14. Multiple Units, Warehouses and Stock Transfers

A registration is state-specific. A second plant or warehouse in Tamil Nadu is added as an additional place of business under the same GSTIN, while a unit in another state needs a separate registration under the same PAN. Stock moved between GSTINs of the same entity is a taxable supply, even without a sale. Since 1 April 2025, common input services used by several GSTINs under one PAN must be distributed through an Input Service Distributor (ISD) registration. See our guides on multiple GST registrations in different states. If you need to change the address or add a place of business, see GST registration amendment.

Tamil Nadu Manufacturing Clusters and Their GST Angles

Cluster	Typical Manufacturing	GST Points to Watch
Chennai, Sriperumbudur, Oragadam	Automobile and auto components, electronics, engineering	E-invoicing and e-way bills at high volumes, ITC reconciliation with many suppliers, delivery challans for tooling
Hosur and Krishnagiri	Automotive, electronics, castings	Inter-state movement to Karnataka, e-way bill at the ₹50,000 limit. See GST registration in Hosur.
Coimbatore	Pumps, motors, textile machinery, engineering goods	Heavy job work and MSME supply chains, ITC-04 reporting. See GST registration in Coimbatore.
Tiruppur and Erode	Knitwear, garments, textiles	Job work between units, exports under LUT, inverted duty refund cases. See GST registration in Erode.
Salem, Madurai and Tiruchirappalli	Steel, granite, food processing, engineering	Mixed intra-state and inter-state sales, composition scheme decisions for small units. See GST registration in Salem, Madurai and Trichy.
Vellore, Ambur and Ranipet	Leather and footwear	Rate depends on the product and price band, so verify the HSN code and rate for each product line
Sivakasi and Virudhunagar	Printing, packaging, matches, fireworks	Classification disputes, rate checks for each product, scrap and waste invoicing

For city-level support in the capital, see GST registration in Chennai.

Common GST Challenges for Tamil Nadu Manufacturers

• Inverted duty structure: when tax on inputs is higher than the tax on the finished product, ITC piles up. GST 2.0 corrected some cases but, according to government officials, has worsened others, such as parts of textiles and food processing. You can claim a refund of the accumulated ITC under Section 54(3).
• Rate changes and old stock: when rates fall, manufacturers may need to issue credit notes to distributors for goods already supplied.
• ITC mismatches: credit is allowed only if the supplier has filed and the invoice shows in GSTR-2B. Follow up with suppliers monthly.
• Wrong classification: an incorrect HSN code leads to wrong rates, demand notices, and interest.
• Job work not closed on time: goods not returned within one year (inputs) or three years (capital goods) become taxable.
• E-way bill errors: a wrong vehicle number or an expired bill can lead to detention of goods in transit.

Penalties and Interest Under GST

Default	Consequence
Late filing of a return	₹50 a day (₹20 a day for nil returns), plus interest at 18% a year on unpaid tax
Not registering when liable	Penalty of ₹10,000 or the tax evaded, whichever is higher
Wrong or excess ITC claimed and used	Interest at 24% a year, and penalty where it is wilful or fraudulent
Moving goods without a valid e-way bill	Detention of goods and vehicle, with a penalty under Section 129
Not issuing a proper tax invoice	Penalty under the GST Act, in addition to tax payable

Benefits of GST for Manufacturers in Tamil Nadu

GST has changed the indirect tax regime of India, leading to the formation of an integrated market for the country. There are several advantages that have accrued to manufacturers in the state of Tamil Nadu due to GST, which include efficiency in operation, reduction in tax costs, and simplification of trade activities.

1. Reduction in Cascading Effect

• GST reduces the cascading effect of taxes by giving credit for the GST paid on business inputs.
• Manufacturers can claim the input tax credit for GST paid on raw materials, input services, and capital goods within certain statutory limitations, thereby reducing their tax costs.

2. Simplification of the Tax Regime

• GST has substituted many indirect taxes such as central excise duty, service tax and state VAT with a simpler tax regime.
• This helps manufacturers in Tamil Nadu in terms of tax administration and also removes the burden of dealing with several indirect tax regimes.

3. Ease in Inter-state Transactions

Manufacturers in Tamil Nadu who supply goods to other states can make use of the unified tax regime in the country, with no separate state-border tax on movement.

4. Enhancement of Efficiency in the Supply Chain Process

• Under the GST regime, there have been fewer tax obstacles for the flow of goods between the states.
• Manufacturers can plan their warehousing, logistics, and distribution strategies based on efficiency factors rather than tax factors alone.

5. Enhanced Competitiveness

Input tax credit and a lesser cascading effect may enable companies to manage their manufacturing costs more effectively, which may increase competitiveness.

6. Better Transparency and Accountability

• The whole GST regime is based on e-registration, e-invoicing, e-filing, and e-payment.
• It provides better record keeping and higher transparency, and also helps producers in organising their documents.

7. Better Management of Tax Compliance

The online GST portal helps manufacturers to file returns, pay taxes, and claim credits electronically.

8. Assistance in Business Expansion

By having a unified indirect taxation framework, Tamil Nadu manufacturing industries can venture into new markets, establish relationships with suppliers and buyers across states, and form a part of larger value chains.

9. Increased Business Formalisation

Through GST registration and record keeping, businesses can increase their credibility among suppliers, customers, financiers, and other stakeholders, thereby gaining access to more formal business opportunities such as bank finance and government tenders. MSME manufacturers can add Udyam registration for scheme benefits.

10. Export of Goods

• Exports eligible under GST regulations are treated as zero-rated supplies, subject to conditions.
• Exporters can export under an LUT without paying IGST and claim a refund of the unutilised input tax credit. Risk-based provisional refunds are also available for exporters.

In conclusion, GST will provide numerous opportunities to Tamil Nadu manufacturers in regard to streamlining tax systems, supply chains, and competition, provided that they maintain proper records in accordance with GST requirements.

How Can a New Manufacturer in Tamil Nadu Get GST Registration?

• Check whether your aggregate turnover crosses ₹40 lakh (goods only) or ₹20 lakh, or whether mandatory registration applies.
• Keep ready your PAN, Aadhaar, photographs, factory address proof with NOC, bank account proof and constitution documents.
• Apply on the GST portal (Part A for PAN, mobile and email, then Part B with the business details and documents), and complete Aadhaar authentication.
• Choose the correct state, the principal place of business, and add the warehouse or any additional place of business. Enter the HSN codes of your main products.
• Respond to any officer query within the time given, and receive your GSTIN, which starts with 33 for Tamil Nadu.
• Then set up invoice series, e-way bill access, e-invoicing if applicable, and a return calendar.

Conclusion

Compliance with GST is important for manufacturers in Tamil Nadu in order to ensure smooth business processes, tax compliance, and adherence to laws and regulations. Awareness about registration, proper tax rates, input tax credit, returns, and other regulatory obligations helps organisations to avoid fines and improve efficiency. Compliance can also lead to long-term growth and increased credibility.

Frequently Asked Questions

1. Should manufacturers in Tamil Nadu get registered for GST?

GST registration is necessary when the aggregate turnover of the manufacturer exceeds the threshold, or when any condition of mandatory registration applies. The general threshold for a supplier dealing only in goods is ₹40 lakh, and ₹20 lakh where services are also supplied. Manufacturers of ice cream, pan masala and tobacco products must register irrespective of turnover. Manufacturers are advised to review their business activities to determine whether registration is needed.

2. What is the GST rate for manufactured products?

GST rates depend on the classification and HSN code of the product. Since 22 September 2025, most goods are taxed at 5% or 18%, with 40% on select luxury and sin goods and nil on exempt items. Manufacturers need to determine the item’s HSN code and apply the proper rate, to avoid notices, penalties and interest.

3. Can manufacturers use the input tax credit scheme under the GST law?

Yes, manufacturers can claim input tax credit when the conditions set by the law are met. They should hold a valid tax invoice, the invoice should appear in GSTR-2B, the goods should be received, and the supplier should have paid the tax. Credit is blocked for items listed in Section 17(5), and composition dealers cannot claim ITC.

4. Which GST returns should manufacturers file?

Registered manufacturers generally file GSTR-1 for outward supplies and GSTR-3B for tax liability and payment, monthly or quarterly under QRMP. Those with aggregate turnover above ₹2 crore also file GSTR-9, and above ₹5 crore, GSTR-9C. Composition dealers file CMP-08 and GSTR-4, and those sending goods to job workers report in ITC-04.

5. Do I need to issue an e-way bill while transporting the manufactured product?

Generally, an e-way bill is issued where the value of goods transported is above ₹50,000, except in some specific circumstances. In Tamil Nadu, the limit for movement within the state is ₹1 lakh, while inter-state movement follows the ₹50,000 limit.

6. Is e-invoicing mandatory for a Tamil Nadu manufacturer?

Yes, if your aggregate turnover exceeded ₹5 crore in any financial year from 2017-18 onwards. You then generate an IRN for B2B and export invoices on the Invoice Registration Portal.

7. What is the GSTIN code for Tamil Nadu?

The state code for Tamil Nadu is 33, so every Tamil Nadu GSTIN starts with 33 followed by the PAN of the business.

8. Can a manufacturer opt for the composition scheme?

Yes, if aggregate turnover is up to ₹1.5 crore, at 1% of turnover. You cannot claim ITC or make inter-state supplies, and manufacturers of ice cream, pan masala and tobacco are not eligible.

9. Is GST payable on goods sent to a job worker?

No, if the goods are sent under a delivery challan and returned within one year (three years for capital goods). Otherwise, the movement is treated as a supply and GST with interest is payable. The principal reports the movement in ITC-04.

10. Is GST payable on the sale of scrap generated in manufacturing?

Yes. Scrap and waste are taxable supplies and must be invoiced and reported in your returns at the applicable rate.

11. Can I export without paying GST?

Yes. Exports are zero-rated, and you can export under a Letter of Undertaking without paying IGST and then claim a refund of unutilised ITC, or pay IGST and claim a refund.

12. What if I have a factory in Tamil Nadu and a warehouse in another state?

You need a separate GST registration in the other state under the same PAN. Stock transfers between the two GSTINs are taxable supplies, and common input services must be distributed through an ISD registration.

Simplify GST Compliance with Kanakkupillai

From GST registration, filing of returns, input tax credit management, invoicing, and complying with regulations, we help manufacturing companies manage their GST responsibilities effectively. Kanakkupillai is a Chennai-headquartered legal and compliance services company with 19+ years of experience and 1 lakh+ customers served, and can be counted upon for reliable GST compliance services and hassle-free business operations.