How to trade other people’s money (legally)

You can trade other people’s money legally, but in most jurisdictions only through a regulated structure or a recognized exemption: a managed account under a limited power of attorney, a PAMM or MAM, an allocation from a seeder, or by registering as an investment adviser. Taking funds informally, pooling friends’ cash, or accepting performance fees without the right registration can break securities law. Rules vary by country and state, so treat the routes below as a map, not legal advice, and confirm your specific case with a securities lawyer.

Why the structure matters

The thing regulators care about is not whether you can trade. It’s whether someone has handed you discretion over their capital and is paying you for it. The moment money or fees change hands for managing money, you are usually in regulated territory.

That has real consequences:

• Pooling is the line. Trading one person’s own account under a power of attorney is very different from pooling several people’s money into one account you control. Pooling looks like an unregistered fund and brings adviser registration, disclosure, and custody rules into play fast.
• A licence is often required. In the US, charging for discretionary management typically means registering as an investment adviser (an RIA, with individuals registered as IARs) or qualifying for an exemption. Many managers hold a Series 65. If you trade futures or leveraged forex rather than securities, the regime shifts to the CFTC and NFA, where you register as a CTA or CPO and pass the Series 3. Other countries have their own regimes. The principle is the same, the labels differ.
• Custody and statements. Keeping client money in the client’s own brokerage account, in their name, with you holding only trading authority, avoids many custody problems. Taking possession of the cash creates them.
• Marketing and track records. How you advertise performance is also regulated. Cherry-picked or unverifiable returns can be a problem on their own, separate from the trading.

The honest summary: the trading is the easy part. The legal wrapper around it is what separates a legitimate manager from someone committing a securities offence.

The real options, from lightest to most serious

There is no single answer. The right structure depends on how many clients you have, whether you pool capital, where you and they live, and how much you’re managing. Here are the realistic routes.

1. Managed account under an LPOA

A client opens a brokerage account in their own name and grants you a limited power of attorney (LPOA): authority to trade, but not to withdraw funds. You manage, and they keep custody and can watch every trade. This is the lowest-friction way to trade someone else’s money, and it sidesteps pooling.

It is not a free pass. Depending on your jurisdiction and how many accounts you run, you may still need to register as an adviser or fit an exemption. But as a starting point it is far simpler than launching a fund.

2. PAMM / MAM

In forex and CFD markets, PAMM (percentage allocation management module) and MAM (multi-account manager) structures let you trade a master account and have the broker mirror the trades, pro rata, across many client sub-accounts. Clients keep their own accounts; you keep one trading interface. It scales better than managing accounts one by one.

The caution is the same: the technology makes execution easy, but it does not change whether you need a licence to charge for it. Some PAMM offerings sit in lightly regulated venues, which is convenient and also a reason to read the fine print.

3. Get funded or seeded by an allocator

Instead of raising from the public, you let an allocator put their capital behind you. A first-loss desk, an emerging-manager program, or a managed-account provider gives you capital to trade in exchange for a share of the upside, and they handle most of the regulatory and operational machinery. You focus on trading; you don’t solicit retail clients at all.

This is the route most small managers actually take, because it removes the two hardest problems at once: raising money and standing up compliance. The bar to enter is a verifiable track record, not a marketing budget.

4. Register as an investment adviser (RIA / IAR)

The full version: register the firm as an RIA, register yourself as an IAR, and manage discretionary accounts under proper disclosures. This is the most serious and most flexible route, and the most expensive in time and money. It makes sense once you have meaningful assets and intend to build a long-term advisory business.

For a deeper look at when a licence is actually required and what it covers, see the licence to manage money.

The realistic ladder for most traders

If you are a profitable trader without a large client base or a compliance department, the practical sequence looks like this:

1. Start with managed accounts. Run client money under an LPOA, in their name, with you holding trading authority only. It is the cleanest first step. Read more on managed accounts and how they work in practice.
2. Build a verified track record. Whatever structure you use, the asset that lets you grow is an independently verifiable record of real performance, not screenshots. Twelve clean months changes what is open to you.
3. Get seeded or allocated. With a verified record, an allocator can put real size behind you without you having to solicit the public, register a fund, or carry the fixed costs alone.

The thread running through all of this is that the track record is what gets you taken seriously. Solve it first and the legal structure becomes a choice you make on your terms, rather than a wall you hit.

That is exactly what we focus on. How High Water Mark works: we verify real-money track records privately, then introduce qualified traders to allocators, free for traders. If your goal is to trade other people’s money without spending years and six figures building a fund first, the shortest honest path is to get your record verified and get on an allocator’s radar.