Section 143 of CGST explained: this guide covers what it means, who it applies to, the step-by-step process, documents required, fees, due dates and penalties in India — so you can stay compliant with confidence and avoid costly mistakes.
Section 143 of the CGST Act, 2017 allows a registered principal to send inputs or capital goods to a job worker without payment of tax for further processing. The goods must be brought back or supplied from the job worker's premises within one year for inputs and three years for capital goods; otherwise the original despatch is deemed to be a supply on which the principal must pay GST with interest.
What Section 143 Says — In Plain English
Job work is the backbone of India's manufacturing supply chain. A garment brand rarely dyes its own fabric, an auto-component maker rarely does its own electroplating, and a food company rarely runs its own packing line. Section 143 recognises this reality and creates a tax-neutral corridor: a principal (a registered person) can send raw materials, semi-finished goods or capital equipment to a specialist job worker without charging GST on that movement, get the work done, and either take the goods back or sell them onward. Tax is only charged on the final supply, not on each internal hop.
The catch is time. The goods cannot stay with the job worker forever. Section 143(3) says that if inputs are not received back or supplied out within one year, the original despatch is treated as a supply by the principal to the job worker on the day the goods first left. Section 143(4) applies the same deeming fiction to capital goods but with a longer three-year window. If the fiction triggers, the principal must pay GST as though he had sold the goods, along with interest running from the original despatch date. The responsibility for the paperwork sits squarely with the principal — Section 143(1) fixes the accounting duty on him, not the job worker.
Clause / Sub-section Breakdown
| Provision | What it does |
|---|---|
| Section 143(1) | Principal may send inputs / capital goods to a job worker (and on to another job worker) without payment of tax; goods can be brought back or supplied from the job worker's premises. Principal keeps the accounts. |
| Section 143(2) | Principal is responsible for keeping proper accounts of the inputs and capital goods. |
| Section 143(3) | Inputs not returned / supplied within one year are deemed supplied on the date of despatch. |
| Section 143(4) | Capital goods not returned / supplied within three years are deemed supplied on the date of despatch. |
| Proviso to 143(3)/(4) | Moulds, dies, jigs, fixtures and tools are excluded from the return time limit. |
| Section 143(5) | Waste and scrap from job work may be supplied by the job worker (if registered) or by the principal, on payment of tax. |
Applicability & Scope
Section 143 applies wherever a registered manufacturer or trader outsources a treatment or process — machining, galvanising, printing, stitching, assembly, testing, powder-coating — to a third party. The principal must intimate the movement and follow Rule 45, moving goods on a delivery challan and filing form ITC-04 to declare goods sent to and received from job workers. Direct supply from the job worker's premises is allowed only if that premises is declared as the principal's additional place of business, or the job worker is registered, or the goods are notified. Importantly, the principal may claim input tax credit on inputs and capital goods sent for job work even before they physically return (read with Section 19).
The scope is deliberately broad. A "job worker" need not carry out a complete manufacture — any treatment or process undertaken on goods belonging to another registered person qualifies. The goods can also travel from one job worker to another before coming back, and the principal can even send inputs directly from the supplier to the job worker without first bringing them into his own premises; in that case the credit is still available and the one-year clock starts from the date the job worker receives the goods. This flexibility is what makes Section 143 so central to sectors like textiles, engineering, pharmaceuticals, footwear and food processing, where value is added in stages across specialist units. What the section does not do is convert every internal movement into a taxable event — tax bites only on the final supply, or on the deemed supply if the return timelines lapse.
Worked Examples
Example 1 — inputs cross the one-year line. A garment manufacturer in Ludhiana sends fabric worth ₹5,00,000 to a job worker for dyeing on 1 April 2026 under a delivery challan, without charging GST. If the dyed fabric returns by 31 March 2027, no tax is payable on the movement. Suppose only part returns and fabric worth ₹1,00,000 is neither received back nor supplied from the job worker's premises within one year. On 1 April 2027 that ₹1,00,000 is deemed to have been supplied on 1 April 2026; the principal must pay GST on ₹1,00,000 along with interest from the original date of despatch.
Example 2 — capital goods and tooling. An auto-parts maker sends a CNC machine (capital goods) worth ₹40,00,000 and a set of dies to a job worker on 1 June 2026. The dies fall under the excluded tooling category, so they can stay indefinitely. The CNC machine, however, must be returned or supplied out by 31 May 2029 (three years). If it is still lying at the job worker on 1 June 2029, it is deemed supplied on 1 June 2026, and GST plus interest becomes payable on ₹40,00,000 from that original date.
Step-by-Step in Practice
1. Raise a delivery challan (not a tax invoice) for the goods sent, quoting the required particulars under Rule 55. 2. Record the movement in the job-work register and, where an e-way bill is required, generate it. 3. Track the one-year / three-year clock from the date of despatch (or, for direct receipt from the supplier, from the date the job worker receives the goods). 4. File ITC-04 for the relevant period declaring goods sent and received back. 5. On completion, either bring the goods back under a challan or issue a tax invoice if supplying directly from the job worker's premises. 6. If the time limit is about to lapse, pay GST on the deemed supply with interest and issue the appropriate document.
Common Mistakes & Practical Notes
- Treating tooling like ordinary capital goods — moulds, dies, jigs, fixtures and tools are outside the return-time limit and need not come back.
- Forgetting that the clock for directly-received inputs starts when the job worker receives them, not when the principal would have.
- Missing ITC-04 filings — poor records invite the deemed-supply fiction and demands with interest.
- Assuming the job worker is accountable — the principal always carries the accounting responsibility.
- Selling scrap incorrectly — waste and scrap can be sold from the job worker's premises on tax only if the job worker is registered; otherwise the principal must account for it.
Timelines & Related Sections
The one-year (inputs) and three-year (capital goods) windows are the core timelines; interest under Section 50 runs from the original despatch if the fiction triggers. Section 143 works closely with Section 19 (input tax credit on inputs and capital goods sent for job work) and Rule 45 read with form ITC-04. The definitions of "job work" (Section 2(68)) and "principal" (Section 2(88)) frame the provision. Where the deemed-supply fiction triggers, tax becomes payable under Section 9; time of supply follows Section 12, and direct exports from a job worker premises engage the refund provisions of Section 54.
Recent Amendments & Context
Section 143 itself has stayed largely stable, but its compliance envelope has evolved: ITC-04 periodicity was rationalised so that taxpayers with turnover above ₹5 crore file half-yearly and others annually, easing the reporting load. In the wider Chapter XXI enforcement context, the Finance Act, 2025 inserted Section 148A (a track-and-trace mechanism for evasion-prone goods) and the companion penalty Section 122B — a reminder that goods moving through job-work and distribution chains are increasingly subject to digital traceability. Principals in sensitive sectors should watch for notifications that could overlay marking obligations on job-work movements.
Key Facts About Section 143 of CGST
- Applies in: All states across India, under the relevant central law.
- Mode: Mostly online via the official government portal.
- Typical timeline: Ranges from a few days to a few weeks depending on the case.
- Non-compliance: May attract penalties, interest or late fees.
- Expert help: TaxClue completes the entire process end to end for you.
Can a principal send goods to a job worker without paying GST?
Yes. Under Section 143 a registered principal may send inputs or capital goods to a job worker without payment of tax, using a delivery challan and reporting the movement in form ITC-04.
What is the time limit to receive goods back from a job worker?
Inputs must be received back or supplied out within one year and capital goods within three years. Otherwise the original despatch is deemed a supply on which GST plus interest is payable.
Over 90% of compliance penalties in India arise from missed due dates — timely handling can save businesses thousands of rupees each year.
Section 143 of CGST: a key compliance topic in Indian tax and corporate law that businesses and individuals must understand to remain compliant.
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