Sending goods to an outside processor for cutting, machining, coating, testing, repair or another treatment is common. Under GST, this can qualify as job work rather than a normal outward sale, but the statutory procedure matters. The practical risk is losing track of the return timeline, challan trail or direct-supply conditions and later finding that an old movement is treated as a taxable supply.
The core rules are sections 19 and 143 of the Central Goods and Services Tax Act, 2017. The CBIC text of the CGST Act sets out the ITC and job-work framework, while CBIC Circular No. 38/12/2018-GST explains challans, movement between job workers and direct dispatch from a supplier to a job worker.
What counts as job work?
Section 2(68) defines job work as a treatment or process undertaken by a person on goods belonging to another registered person. The owner sending the goods is the principal for section 143. Subject to the prescribed conditions, a registered principal may send inputs or capital goods to a job worker without payment of tax and may move them onward to another job worker.
The 1-year and 3-year limits
Inputs must generally be brought back to a place of business of the principal, or supplied from the job worker's premises in the permitted manner, within one year of being sent out. Capital goods, other than the specified exclusions, get three years.
If a supplier sends inputs or capital goods directly to the job worker instead of first delivering them to the principal, section 19 counts the one-year or three-year period from the date the job worker receives the goods. Moulds and dies, jigs and fixtures, and tools are outside this one-year/three-year deemed-supply rule.
What happens if the limit is missed?
If inputs are neither received back nor validly supplied from the job worker's premises within one year, the law deems them to have been supplied by the principal to the job worker on the day they were originally sent out. A similar rule applies to capital goods after three years. This can create a retrospective tax exposure, which is why monthly ageing is more useful than a year-end reconciliation.
Delivery challan and movement records
Goods sent for job work move under a challan rather than being treated as a normal sale merely because they leave the principal's premises. CBIC Circular No. 38 explains that the principal prepares the challan under rules 45 and 55. Where goods move from one job worker to another, the movement can be covered by a challan issued by the principal or job worker, or by endorsement of the principal's challan as explained in the circular.
A practical register should link the challan number and date, description and quantity of goods, job worker, receipt date, subsequent movement and final return or supply. The principal remains responsible for keeping proper accounts of the inputs and capital goods sent for job work.
Can goods be purchased and sent directly to the job worker?
Yes. Section 19 permits the principal to take eligible input tax credit even when inputs or capital goods are sent directly to the job worker without first being brought to the principal's premises. CBIC's circular explains that the supplier's invoice can identify the principal as buyer and the job worker as consignee, while the principal issues the required challan.
The key control is to record the supplier invoice, the job worker's actual receipt date and the challan reference together, because that receipt date starts the statutory ageing period in a direct-dispatch case.
Can processed goods be sold directly from the job worker's premises?
Section 143 permits the principal to supply processed inputs or eligible capital goods directly from the job worker's place within the relevant one-year or three-year period. For domestic supplies, tax is paid as applicable; exports may be made with or without payment of tax under the applicable law.
The principal generally has to declare the job worker's premises as an additional place of business unless the job worker is registered under section 25 or another notified exception applies. The outward invoice is issued by the principal. The job worker's processing service and the principal's sale of goods remain separate transactions.
What happens to ITC?
Section 19 protects the principal's ITC route for inputs and capital goods sent for job work, including direct deliveries to the job worker. Normal ITC eligibility conditions and restrictions still apply, but physical movement to a job worker does not by itself require the principal to wait until the goods first enter its own premises before taking eligible credit.
Waste and scrap
If waste or scrap arises during job work, section 143 allows a registered job worker to supply it directly from the job worker's premises on payment of tax. If the job worker is not registered, the principal is responsible for the taxable supply of that waste or scrap.
Worked example
Assume a registered manufacturer buys steel components and instructs the supplier to deliver them directly to a registered machining job worker. The manufacturer can evaluate ITC without first receiving the components at its own factory. The one-year clock starts from the date the job worker receives them, so the manufacturer should link the supplier invoice, receipt evidence and job-work challan.
If the machining is completed and the manufacturer sells the processed components directly from that registered job worker's premises before the one-year limit expires, section 143 permits that route, subject to applicable invoicing and tax rules. If the components remain unreturned and unsold beyond the permitted period, the deemed-supply rule can apply by reference to the original statutory dispatch or receipt point.
Month-end job-work checklist
- Reconcile every challan with goods received back, moved onward or supplied.
- Maintain separate ageing for inputs and capital goods.
- For direct deliveries, capture the job worker's actual receipt date.
- Review items approaching the one-year or three-year limit early.
- Check the additional-place-of-business condition before direct supply from a job worker's premises.
- Reconcile job-work records with inventory, fixed assets, purchase invoices and outward invoices.
- Track waste and scrap separately and document who makes the taxable disposal.
Common mistakes
- Treating the initial job-work movement as a sale to the job worker.
- Using the principal's book-entry date instead of the job worker's receipt date for direct deliveries.
- Seeing the one-year and three-year limits as mere reporting deadlines rather than deemed-supply triggers.
- Losing the audit trail when goods move from one job worker to another.
- Supplying from an unregistered job worker's premises without checking the additional-place-of-business requirement.
Practical takeaway
GST job work is easiest to control when three things stay connected: document the movement, age the goods and decide the exit route before the statutory limit expires. Section 19 protects eligible ITC even for direct dispatch, while section 143 permits return, onward job work and direct supply subject to conditions. For a live transaction, recheck the current CGST Act on India Code and CBIC's job-work circular.
