How much money do you need to start trading?

There is no universal number, and anyone who gives you one without asking what you trade is guessing. What can be answered precisely is the logic that sets the floor for your situation: your account has to be large enough that one percent of it can buy a sensible position after costs, in the instruments you actually want to trade. Work backwards from that and you get a real number instead of a slogan.

The more important question comes first, though, and it is not about the account at all.

Before the number: money you can genuinely lose

Trading capital should be money whose complete loss would be disappointing and nothing more. Not next month’s rent, not an emergency fund, not borrowed money, and not money with a job to do in the next few years.

This is not a moral point, it is a mechanical one. Money that matters produces decisions that lose. If a position’s outcome affects whether a bill gets paid, you will exit early, hold too long, and size wrongly, and none of your rules will survive contact with that pressure. The person trading money they can afford to lose has a real structural advantage over the person who cannot, and it shows up in the results.

So the first answer to “how much do I need” is: however much you can set aside and genuinely not need. If that figure is zero right now, the honest answer is that this is not the moment, and there is no strategy that fixes it.

How do you work out the floor?

Three things set the practical minimum.

Your risk per trade. At one percent, a $2,000 account risks $20 per trade. That is the amount that can be lost when the stop is hit, not the amount deployed. The arithmetic is in position sizing for small accounts.

Your stop distance. Wider stops mean fewer shares for the same risk. A $50 stock with a $2 stop and $20 of risk buys you 10 shares.

Your costs. If a round trip costs $10 and your average risk is $20, costs are consuming half your risk budget on every trade. No strategy survives that.

Put together: your account is large enough when one percent of it comfortably exceeds your round-trip costs, by a wide margin. A useful rule of thumb is that costs should be a small fraction of the amount you are risking, ideally under a tenth. If your costs are $10 per round trip, you want to be risking around $100 per trade, which at one percent implies an account near $10,000.

That number falls sharply with commission-free brokers and fractional shares, and rises in markets with wide spreads or minimum contract sizes. Run the calculation for your own market and broker rather than adopting anyone else’s answer.

Why are very small accounts hard?

They are not impossible, but the difficulties are real and worth naming.

Costs dominate. The same fixed cost against a smaller risk budget is a much larger drag.

Some trades cannot be taken. If one percent of your account will not buy a single share at a sensible stop distance, the setup is unavailable to you regardless of quality.

Position sizing gets lumpy. You cannot buy 3.7 shares in many markets, so your actual risk jumps around your intended one.

The temptation to over-risk is severe. This is the real danger. On a $500 account, one percent is $5, and $5 feels pointless. So people risk twenty percent instead, to make it feel meaningful, and the account is gone within a few normal losing streaks. That is not bad luck, it is the arithmetic in what a normal losing streak looks like meeting a size that cannot absorb it.

If your account is small, the correct response is to keep the percentage and accept that the amounts are small, or to wait and add capital. It is never to raise the percentage.

What a small account is genuinely good for

Learning, and that is not a consolation prize.

The first year is about whether you can follow rules, keep records, and survive drawdowns without improvising. All of that can be practised on an account too small to matter, and practising it there is far cheaper than practising it later on an account that does. The habits transfer perfectly. The capital can arrive afterwards.

What does not work is treating a small account as a launchpad that has to be doubled quickly to become viable. That framing requires risking amounts that guarantee it does not survive, which is one of the failure modes in why most traders lose money.

Leverage does not solve this

The obvious objection is that leverage lets a small account take larger positions. It does, and it does not change the arithmetic in your favour.

Leverage increases position size, which increases both profit and loss, while your account stays the same. A ten percent adverse move on a heavily leveraged position can remove a large share of your capital. It also makes stop placement harder, because the position is now large enough that a normal stop distance represents an uncomfortable amount of money, which pushes people into stops that are too tight and get hit by noise. That is exactly the mistake described in where to place a stop loss.

Regulators reached a similar conclusion. ESMA’s final product intervention measures capped the leverage retail clients can be offered, on a sliding scale from major currency pairs down to the most volatile instruments, precisely because high leverage was producing outcomes that could not be defended.

Leverage is a tool with legitimate uses. It is not a substitute for capital, and treating it as one is among the more reliable ways to lose an account quickly.

The order I would do things in

1. Build an emergency fund first. Trading capital comes after, not before.
2. Decide what you will trade, then calculate the floor from your costs and stop distances.
3. Test without money. Backtest the idea, then forward test it. See how to backtest a strategy and how long to paper trade.
4. Start smaller than your floor, at a size where losses are trivial, for the first several months. The goal is behaviour, not returns.
5. Add capital steadily from income if you want the account to grow, rather than trying to compound a small balance quickly.

That last point is the one that gets left out of most discussions. For most part-time traders, contributions do far more for account growth in the early years than returns do, and they carry none of the risk. It is a much duller answer than the one usually on offer, and it is the accurate one.

The full progression, including the sizing arithmetic at each stage, is in The 9-to-5 Trader.

Educational only, not financial advice. Trading carries a real risk of loss.