Commodity Transaction Tax is calculated based on the transaction value of the contract. The rate and method of calculation depend on whether the trade involves futures or options.
The calculation typically follows these principles:
For futures contracts, CTT is charged on the sell side of the transaction.
It is calculated as a percentage of the total traded value.
For options contracts, CTT may be charged on the premium amount.
If an option is exercised, CTT may apply on the settlement price.
For example, assume a trader sells a crude oil futures contract worth ₹5 Lakhs and the applicable CTT rate is 0.01 percent. The CTT would be calculated as:
CTT = Transaction Value multiplied by CTT Rate
CTT = ₹5 Lakhs multiplied by 0.01 percent
CTT = ₹50
The exchange automatically deducts this amount at the time of settlement.