What "job work" means under GST
If you are an Indian discrete manufacturer, you almost certainly touch job work. You send castings out for machining, sheet metal out for powder coating, components out for heat treatment or plating — or you are the shop that receives them. Under GST this is a defined activity, and getting the paperwork right is not optional.
Section 2(68) of the CGST Act defines job work as "any treatment or process undertaken by a person on goods belonging to another registered person." The owner of the goods is the principal; the shop doing the work is the job worker. Section 143 then lays down the special procedure that lets the principal send inputs or capital goods to a job worker without paying tax on that movement, provided the goods come back (or are supplied onward) within the prescribed time.
The key mental model: sending goods for job work is not a supply. No GST is charged when material leaves your gate on a job-work challan, and no GST is charged when it returns. Tax only enters the picture if the goods are not returned in time, if the job worker's service is invoiced (the job worker charges GST on the job-work charges, typically 12% or 18% depending on the process), or if waste and scrap are sold. The whole scheme rests on your ability to prove, document by document, that what went out came back.
The delivery challan is the whole game
Because there is no tax invoice on a job-work movement, the delivery challan issued under Rule 55 of the CGST Rules is the primary document. Get the challan discipline right and everything downstream — e-way bills, ITC-04, audits — becomes straightforward. Get it wrong and you are reconstructing history under pressure.
A compliant job-work delivery challan is serially numbered and carries, at minimum:
- Date and a unique consecutive challan number
- Name, address and GSTIN of the principal (consignor) and the job worker (consignee)
- HSN code, description and quantity of the goods being sent
- Taxable value, tax rate and tax amount (shown for record, though not charged on the movement)
- Place of supply and signature
The challan is prepared in triplicate: the original travels to the job worker, the duplicate goes with the transporter, and the triplicate stays with you. When the processed goods come back, they return under reference to the original challan (many principals raise a fresh challan on return, cross-referencing the outward one). The number that matters at reconciliation time is simple: quantity sent minus quantity received back minus waste/scrap accounted for should close to zero, part by part.
The one-year and three-year return limits
Section 143 sets clear clocks. Once goods leave on a job-work challan, they must return — or be supplied onward from the job worker's premises — within:
| Goods sent | Return window | If not returned in time |
|---|---|---|
| Inputs / raw material | 1 year from date of sending | Treated as a deemed supply on the day they were sent out; tax plus interest becomes payable |
| Capital goods | 3 years from date of sending | Deemed supply on the day sent out |
| Moulds, dies, jigs, fixtures, tools | No time limit — excluded from the 1/3-year clock (and generally outside ITC-04 reporting) | |
The extended-period provisions allow a commissioner to lengthen these windows in genuine cases, but you should plan around the base limits. The practical consequence for a shop floor is that an open challan is a ticking clock. A plating vendor who is slow, a machining subcontractor who loses a batch, a part that quietly sits in someone else's WIP — each is a challan approaching its deadline. The plants that never get caught are the ones that run an ageing report on open job-work challans the same way they run an ageing report on open work orders.
ITC-04 — what it is and how often you file
Form GST ITC-04 is the declaration a principal furnishes summarising the goods sent to, and received back from, job workers in a period. It captures the outward challans, the inward receipts against them, and goods sent from one job worker directly to another. It is how the department reconciles your job-work movements against the input tax credit you continue to claim on that material.
Filing frequency depends on your aggregate annual turnover:
| Aggregate annual turnover | ITC-04 frequency | Due date |
|---|---|---|
| More than ₹5 crore | Half-yearly | April–Sep by 25 October; Oct–March by 25 April |
| Up to ₹5 crore | Yearly | Financial year by 25 April |
These frequencies were rationalised with effect from 1 October 2021 — before that, ITC-04 was quarterly for everyone, which is why older guides and templates still say "quarterly." Always work from the current position, and because the threshold, due dates and applicability can change with notifications, confirm your specific filing obligation with your CA or tax advisor before you rely on it.
The uncomfortable truth is that ITC-04 is only as good as the register behind it. If your challans live in a spreadsheet that nobody reconciles against actual receipts, filling the form becomes an end-of-period scramble that papers over gaps rather than surfacing them. The form should be a printout of a register you already trust — not the first time anyone adds up what is still out.
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E-way bills, waste and direct dispatch
Three practical wrinkles trip up shops that have the challan basics right.
E-way bills
Movement of goods to and from a job worker generally needs an e-way bill the same as any other movement. For inter-state job-work movement, an e-way bill is required irrespective of the consignment value; for intra-state movement the usual value threshold (commonly ₹50,000, higher in some states for job work) applies. The e-way bill references the delivery challan, so a clean challan number flows straight into it.
Waste and scrap
Process generates scrap — machining chips, trim, sprues, rejected material. Waste and scrap arising at the job worker's premises can be supplied by the job worker on payment of tax if the job worker is registered; otherwise the principal accounts for it. Either way, scrap has to be part of your reconciliation, because material that left as input and did not come back as a finished part has to be explained as scrap or it looks like an unreturned supply.
Direct dispatch from the job worker
Goods can be supplied directly to a customer from the job worker's premises — useful when the last operation happens there — provided the job worker is registered or the principal has declared that premises as an additional place of business. This keeps the material out of your gate entirely, which makes disciplined challan and ITC-04 tracking even more important, because you are proving a movement you never physically saw return.
Where production tracking fits
Here is the connection most compliance articles miss: the job-work loop is a material movement problem, and material movements are exactly what a production management system is built to record. The GST return is a reporting layer on top of physical facts — what you issued, what you received, what you scrapped. If those physical facts are captured cleanly as you go, ITC-04 is a report; if they are not, it is a reconstruction.
In production terms, sending material out for a subcontracted operation is a form of material issue, and receiving it back is a form of return / receipt against the same reference. The two-step reserve-then-issue discipline that keeps ordinary work-order stock honest is the same discipline that keeps a job-work register honest: stock is committed at a defined point, and every movement is a linked document rather than a note in a diary. Where the outsourced step sits in the middle of a route — machine in-house, plate outside, assemble in-house — having the whole route in one system means the outside leg is not a black hole between two spreadsheets.
Upstream, Fast Planning / MRP tells you what quantity needs the outside operation and when, so the challan is raised against real demand rather than guesswork. Because material issue and finished-goods receipt post to the same stock ledger the warehouse uses, the quantity still sitting at a vendor is visible as reserved-or-issued stock, not as inventory that has silently vanished.
How Fast Production supports the job-work trail
Fast Production Software, built by Improsys in Pune on the shared Fast Suite platform, records production as linked documents on one engine — which is precisely what a defensible job-work trail needs.
Two honest caveats. First, Fast Production tracks the material and production side; the ITC-04 return itself is filed on the GST portal, and how you map your movements into it — including the treatment of tools, capital goods and scrap — should be confirmed with your CA. Second, no software absolves you of the discipline: the system will faithfully record whatever the floor books, so the value comes from booking issues and returns as they happen, not at period-end. Do that, and the return stops being a scramble. To see the material trail on your own parts, book a demo or compare options on the pricing page.
Frequently asked questions
Is sending goods for job work under GST a supply?
No. Sending inputs or capital goods to a job worker under Section 143 of the CGST Act is not treated as a supply, so no GST is charged on that movement. The goods travel on a delivery challan under Rule 55, not on a tax invoice. Tax only arises if the goods are not returned within the prescribed time (one year for inputs, three years for capital goods), if the job worker invoices their processing charges, or if waste and scrap are sold. Confirm specifics with your CA.
What is Form ITC-04?
ITC-04 is the declaration a principal furnishes to summarise goods sent to and received back from job workers in a period, along with goods moved from one job worker to another. It reconciles your job-work movements against the input tax credit you continue to claim on that material. It is filed half-yearly if your aggregate annual turnover exceeds five crore rupees, and yearly if it is up to five crore, with due dates of 25 October and 25 April.
What are the time limits for returning job-work goods?
Inputs must return from the job worker within one year of being sent, and capital goods within three years. If they do not, the movement is treated as a deemed supply made on the day the goods were originally sent out, and tax with interest becomes payable. Moulds, dies, jigs, fixtures and tools are excluded from these time limits. An extended period can be granted by the commissioner in genuine cases, but plan around the base limits.
Do I need an e-way bill to send goods for job work?
Generally yes. For inter-state movement to or from a job worker, an e-way bill is required irrespective of the consignment value. For intra-state movement, the usual value threshold applies, commonly fifty thousand rupees, though some states set higher limits for job work. The e-way bill references the delivery challan, so a clean, serially numbered challan flows straight into it.
How does production software help with ITC-04 compliance?
Production software records the physical facts the return is built on: what material was issued out, what came back, and what was scrapped, each as a linked document rather than a spreadsheet note. Because material issue, return and finished-goods transfer post to one shared stock ledger, quantity still at a vendor stays visible and sent-versus-received becomes a number you can reconcile. The ITC-04 return itself is filed on the GST portal, and mapping should be confirmed with your CA.