Tax collection at source by e commerce operators requires collection and monthly remittance of a notified share of net taxable supplies. Every electronic commerce operator, not being an agent, must collect from suppliers an amount at a notified rate on the net value of taxable supplies where consideration is collected by the operator; pay collected amounts monthly; furnish monthly and annual electronic statements of outward supplies and collections; allow suppliers to claim credit for collected amounts; enable electronic matching of operator and supplier returns with prescribed communication and addition of unrectified excesses to supplier output tax liability subject to interest; and comply with information notices, failing which penalties apply.