Job work under GST: what a toll manufacturing buyer needs to know

Job work is defined in section 2(68) of the Central Goods and Services Tax Act, 2017 as any treatment or process undertaken by a person on goods belonging to another registered person. The person carrying out the work is the job worker, and the owner of the goods is the principal.

Two things in that definition do the work. First, the goods must belong to someone else: if the processor buys the inputs, it is not job work, it is manufacture and sale. Second, the principal must be a registered person. A process carried out on goods belonging to an unregistered owner falls outside the job work provisions, whatever the parties call it.

This matters commercially because the job work route allows material to move without tax being paid on the goods themselves. Only the processing service is taxed. Get the classification wrong and the movement of your material can be treated as a supply, which is an expensive way to discover a definition.

Section 143 lets a registered principal send inputs or capital goods to a job worker without payment of tax, and on to another job worker after that, provided the goods come back or are supplied onward within the prescribed period. The movement is made under a delivery challan rather than a tax invoice, because nothing is being sold.

The principal keeps the input tax credit on those inputs. Credit is not lost by the goods being in someone else’s factory, and it is available even where the inputs are sent directly from the supplier to the job worker’s premises rather than passing through the principal’s own godown first. That direct-despatch route is worth knowing: it saves a leg of freight on almost every campaign.

The goods can also be supplied directly from the job worker’s premises to your customer, rather than returning to you first. Where the job worker is not registered, doing so generally requires the principal to have declared the job worker’s place of business as an additional place of business.

Inputs must return, or be supplied onward, within one year of being sent out. Capital goods have three years. Moulds, dies, jigs, fixtures and tools are outside the time limit, which is why they can sit at a plant indefinitely without creating a problem. Extensions are possible on application.

If the period passes and the goods have neither come back nor been supplied, they are deemed to have been supplied to the job worker on the day they were originally sent out. That backdating is the sting: tax becomes payable with interest running from the original despatch date, not from the day the limit expired.

For a toll manufacturing buyer the practical consequence is administrative rather than chemical. Long campaigns, material held for a second stage, and drums of intermediate parked at a plant between runs are all ordinary in this industry and all capable of quietly crossing a year. Somebody has to own that calendar.

Job work runs on documents that many first-time principals under-prepare. The list is short and each item has a clear owner.

The job worker charges GST on the service, not on the value of your goods. The value of the material you supplied does not enter the job worker’s taxable value, which is the core benefit of the job work route and the reason it is worth documenting properly.

The rate depends on what is being processed. The rate entries covering job work services have been amended more than once since 2017, with a lower rate applying to job work in relation to specified goods and a higher residual rate to everything else, and the scope of those entries has moved. Any guide that prints a single percentage as settled fact will be wrong for somebody. Confirm the entry that applies to your goods, at the date of the campaign, with your accountant.

One point that is stable and often missed: where the job worker is unregistered, the arrangement does not become tax-free. The obligations shift, and the principal needs to understand what falls to them before material moves.

Chemical processing generates material that has value, and the GST treatment of it is worth settling in the contract rather than discovering in an audit. Waste and scrap generated during job work may be supplied by the job worker directly from their premises on payment of tax where the job worker is registered; where they are not, the supply is made by the principal.

Recovered solvent deserves its own clause. It is frequently worth more than the difference between two competing quotations, and "the plant keeps the solvent" is a real price concession that rarely appears in the comparison. State who owns the recovered fraction, at what assumed recovery percentage, and who bears the residue disposal cost.

The same applies to by-products with a market, such as spent acid from sulphonation. Whether it is your asset or the plant’s, and who pays when it has to be neutralised instead of sold, belongs in writing before the first batch.