Complete Guide to LLCs

You've been trading stocks with your brother for three years now. The portfolio hit $400,000 last month. Your friend Janet wants in. Suddenly, that personal brokerage account feels uncomfortably exposed—what happens if someone sues? What if you disagree about selling that tech stock?

Here's where an investment LLC makes sense. It's not for everyone (definitely not if you're just dabbling with $10,000). But when you're pooling serious money or need protection, the structure works. Let's walk through exactly how to set one up.

What Is an Investment LLC

Think of it this way: an investment LLC is just a regular LLC that buys and holds investments instead of running a bakery or consulting business.

You're forming a legal company—registered with your state, with its own tax ID—that exists purely to own stocks, bonds, mutual funds, or other securities. The LLC's name goes on the brokerage account. The LLC owns the shares. You and your partners own the LLC.

Here's what actually matters: if something goes wrong with the investments, people generally can't come after your house. The LLC owns the losing position, not you personally. Your retirement account? Your car? Off limits in most cases (fraud and personal guarantees are different stories—we'll get to that).

Why not just use a corporation? Two reasons. First, corporations mean double taxation—the company pays tax, then you pay tax again on dividends. LLCs don't work that way. Profits flow straight through to your personal return. Second,...