Do I actually need a GST registration to sell online, or can I start without one?
If you sell through any marketplace (Amazon, Flipkart, Meesho, Nykaa, quick-commerce), GST is compulsory from your very first order with no turnover exemption. On your own Shopify/Woo store you technically get the normal small-business threshold (around Rs 40 lakh for goods / Rs 20 lakh for services, which changes, so confirm the current number with your CA), but nearly every serious D2C brand registers voluntarily on day one to claim input credit and because gateways and courier aggregators expect a GSTIN.
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Honestly answers the very first question every bootstrapped founder asks, including the narrow legitimate cases where you can delay registration and why most sellers shouldn't.
The single best plain-English overview for a D2C founder, it ties together registration, place of supply, invoicing, returns and TCS in one read without drowning you in sections of the Act.
GST registration is mandatory for Indian ecommerce sellers regardless of revenue, and your GSTIN needs to show up on your store's invoices and often its footer - this is the clearest walkthrough of what's required and why.
A dense, practitioner-written FAQ covering commission handling, invoice generation, ITC and TCS matching, the kind of detail a marketplace seller runs into in month two.