What Is DeFi? A Complete Beginner's Guide to Decentralized Finance (2026)
Imagine walking into a bank with no tellers, no managers, no headquarters — just code. You deposit funds, earn 4% APY. Take out a loan in seconds, no credit check. Swap assets instantly, 24/7, without asking permission. This isn’t a thought experiment. It’s DeFi — Decentralized Finance — holding over $80 billion in total value locked as of August 2026. But what actually is DeFi? How does it differ from the banking app on your phone? And for US-based investors, what do SEC regulations, IRS tax rules, and stablecoin laws mean for your DeFi activity? This guide covers it all. ...