The honest first answer: possibly nothing
The most useful answer to "how much do I need to start trading?" is one nobody selling a course wants to give: for many people, the right amount is zero, at least for now. You can learn the mechanics of trading completely free on a demo account, and you should spend a good while there before real money enters the picture at all.
It is also worth being blunt about the odds. Regulated brokers are required to warn that a large majority of retail traders lose money. Trading is not a reliable income, a savings plan, or a shortcut — and deciding that it is not for you, or not yet, is a perfectly sensible and often money-saving conclusion. Nobody needs to trade.
Minimum deposits are the wrong question
Many brokers advertise low minimum deposits — sometimes €50, €100 or €200 — and beginners often read this as "so that is how much I need". That is a mistake. A minimum deposit is the least the broker will let you open an account with; it has nothing to do with how much you can sensibly afford to risk or how much you actually need to trade properly.
A tiny deposit can also work against you. On a very small account, the temptation is to use high leverage and oversized positions just to make the numbers feel worthwhile — which is exactly the behaviour that wipes accounts out. The question is not "what is the minimum I am allowed to deposit?" but "what is an amount I can genuinely afford to lose, and can I trade it in small, sensible sizes?"
Only ever risk genuinely spare money
Whatever figure you land on, it must be money that, if it vanished completely tomorrow, would not touch your rent, your bills, your family, your emergency savings, or your ability to sleep. This advice is repeated so often it can wash over you — so take it literally. The money you trade should be truly spare.
Never trade with borrowed money, credit cards, or funds earmarked for something important. Beyond the obvious financial danger, needing the money back creates emotional pressure, and emotional pressure is one of the fastest routes to bad decisions and bigger losses. And for many people, honestly, the amount of genuinely spare money available for something this risky is small or zero — which, again, is a completely valid answer.
How position sizing sets the real floor
The amount you need is really driven from the bottom up by risk, not from the top down by a deposit figure. A widely used rule of thumb is to risk no more than about 1% of your account on any single trade. On a €500 account, that is about €5 of risk per trade; on a €1,000 account, about €10.
For that maths to work, your account has to be large enough that a sensible position — with a sensible stop-loss distance in pips — only puts about 1% at risk. On a very small account, even the smallest available position (a micro lot) can represent far more than 1% of your money, which forces you either to over-risk or to sit on the sidelines. This is the real reason accounts that are too small tend to fail: they leave no room to size trades properly.
As a rough illustration, trading a single micro lot with a 30-pip stop risks around €3 per trade. For that to be only about 1% of your account, you would want somewhere in the region of €300 or more just to trade the smallest size sensibly — and more if you want any breathing room. The exact figure depends on the market and your stop distance, but the principle holds: your risk rules set the floor, not the broker's minimum.
A sensible starting range for a beginner
Putting it together, a common and reasonable approach is: learn free on a demo for weeks; then, if and only if you have genuinely spare money and want to experience real stakes, start with a modest amount — for many people somewhere in the low hundreds — treated purely as the cost of an education, not an investment you expect to grow.
Keep your positions tiny at this stage, use little or no leverage, and expect to lose some of it while you learn how you behave with real money. If you cannot lose that starting amount without it affecting your life, the amount is too big and you should trade smaller or wait. There is no prize for depositing more.
Money is not the main thing you need
It is tempting to believe that a bigger account is what stands between you and success. Usually it is not. What separates beginners who last from those who blow up is not the size of their deposit but their discipline: risking small amounts per trade, respecting stop-losses, keeping a journal, and having the patience to do nothing when there is nothing worth doing.
So before asking how much money you need, ask whether you have the temperament and the time to trade slowly and carefully — and whether you can afford to lose whatever you put in without it hurting. Get those honest answers first. The right amount of money follows from them, and for a great many people the calmest, wisest answer remains: start with a demo, and risk nothing you cannot comfortably afford to lose.