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Foundation · Lesson 05

CEX vs DEX Exchanges

Ready to actually buy? You'll do it on an exchange — and there are two kinds, with very different rules. Here's which one beginners should start on, and why.

5 min readWritten for beginnersLesson 5 of 20

Where do you actually buy crypto?

You understand crypto, blockchain and wallets. Now the practical question: where do you turn your rupees into coins? At a crypto exchange — a marketplace that matches buyers and sellers. And there are two very different kinds.

A CEX (centralised exchange) is a company that runs the marketplace for you. A DEX (decentralised exchange) is software with no company in the middle — you trade straight from your own wallet.

The one idea to remember

A CEX is a company you trust to hold your coins. A DEX is code you use while holding your own.

CEX VIA A COMPANY WALLET TO WALLET
On a CEX every trade routes through the company in the middle. On a DEX, wallets trade directly with each other — no company holding your coins.

Which should a beginner start with?

  • A CEX is far easier to begin with. You can pay with INR, the app is simple, and there's support if something breaks. Almost everyone starts here.
  • A DEX gives you full control — no company holds your coins — but it's unforgiving. One wrong click is permanent, and there's no help desk.
  • The trade-off is convenience vs control. CEX = easy but you trust the company. DEX = hard but you trust only yourself.

In India, a regulated CEX that supports INR deposits and follows KYC rules is the sensible first step. Get comfortable there before you ever touch a DEX.

The honest part

On a CEX, the company holds your coins — so "not your keys, not your coins" applies. Exchanges have collapsed before and taken users' funds with them. The lesson: a CEX is great for buying and trading, but don't leave large balances sitting on it. Also remember — in India, that 30% tax and 1% TDS apply to your trades here.

In one line

A CEX is an easy company-run marketplace that's perfect for beginners; a DEX hands you full control with zero safety net — start on a regulated CEX, and never leave more than you're trading on it.

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