There are three different numbers: the regulatory minimum, the practical minimum and the survivable minimum. In the US the regulatory floor for a margin account is $2,000. The practical floor depends on the smallest contract your market offers. The survivable floor is whatever makes a sensible risk per trade larger than your costs per trade.
Most articles answer only the first of those, which is why so many people fund an account that is technically legal and practically unworkable. Work through all three and you get a real number instead of a regulatory one.
The regulatory minimum, market by market
The US stock answer changed materially this year. FINRA retired the pattern day trader framework — including its $25,000 minimum equity requirement — effective June 4, 2026, replacing it with an intraday margin standard, with firms permitted to phase in the change through October 20, 2027. What survives is the ordinary margin floor: FINRA's guidance states you need $2,000 in equity to engage in leveraged trading, and must maintain 25% of the current market value of long margin-eligible securities as maintenance margin throughout the trading day (FINRA, Intraday Margin Requirements). The full picture is in the pattern day trader rule explained.
| Market | Regulatory floor | What actually binds you |
|---|---|---|
| US stocks — cash account | None | Settlement: the same dollars cannot be recycled instantly |
| US stocks — margin account | $2,000 | 25% maintenance margin, monitored intraday |
| Index futures | None set by regulation | Broker day-trade margin and the contract's tick value |
| Retail forex | None set by regulation | Broker minimum and the smallest lot size offered |
Note what the right-hand column says: outside stocks, the binding constraint is almost never a rule. It is the size of the smallest position you are able to take.
The practical minimum: the smallest position that exists
Your account has to be big enough that one contract or one lot is a sensible risk — not a maximum bet.
- Micro futures. The CME's Micro E-mini S&P 500 contract is sized at $5 × the S&P 500 index, one-tenth the standard E-mini (CME Group contract specs). That divisibility is the whole reason micros exist, and it is why futures became the small-account route long before the stock rules changed.
- Forex micro lots. A micro lot is 1,000 units of the base currency, roughly $0.10 per pip on most majors. A 20-pip stop therefore risks about $2 — workable on a small balance. See what a lot size is for the full breakdown.
- Fractional shares. Where a broker offers them, share price stops being a constraint. Where it does not, a single share of an expensive stock can exceed your entire risk budget.
The survivable minimum: work it backwards
This is the number that matters and almost nobody calculates it. Start from the risk you are willing to take on one trade, then check it against what the trade costs to place.
- Pick your risk per trade. A commonly used ceiling is 1% of the account. On $2,000 that is $20; on $500 it is $5.
- Price one round trip. Spread plus commission on the smallest position in your market. In micro futures and micro-lot forex this is typically a small number of dollars.
- Compare them. If your per-trade risk is not several times your per-trade cost, the account is too small. At $5 of risk against $2 of cost, costs consume 40% of your risk budget before the market has done anything — the edge required to overcome that is unrealistic.
Run that arithmetic and the honest picture emerges: a few hundred dollars is a live practice account, low four figures is where costs stop dominating in the micro markets, and a stock account trading whole shares needs materially more simply because the smallest position is larger. Nobody can tell you a number that makes trading work — the calculation tells you the number below which it definitely does not.
What $500, $5,000 and $25,000 realistically buy
| ~$500 | ~$5,000 | ~$25,000 | |
|---|---|---|---|
| Risk per trade at 1% | $5 | $50 | $250 |
| Costs as a share of risk | Often crippling | Manageable in micros | Minor |
| Markets that work | Micro forex only, really | Micro futures, forex, fractional shares | All of the above, plus whole-share stocks |
| Realistic purpose | Live practice with real emotion | Building a track record | Trading a process you already have |
| Main danger | Oversizing to feel relevant | Sizing up too fast after a good week | Assuming capital substitutes for process |
The last row is the one worth sitting with. Capital buys room for variance; it does not buy an edge. A $25,000 account run without a written invalidation loses money more efficiently than a $500 one.
Money you should not use
Three categories, without hedging:
- Borrowed money. Credit cards, personal loans and family money add a fixed repayment obligation to a variable outcome. That combination forces trading decisions on a schedule, which is the opposite of what a plan requires.
- Money you need within the year. Rent, tuition and emergency funds create pressure to make back a loss quickly, and revenge trading is where accounts die.
- Money that leaves you with no buffer. If funding the account means having no savings, the account is not the risk — your life is.
The SEC's investor education is direct about the underlying risk: day trading "is extremely risky and can result in substantial financial losses in a very short period of time" (Investor.gov). Fund accordingly.
Where a subscription fits
If you are choosing between funding the account and paying for education or a room, fund the account first. A subscription that meaningfully reduces the capital it is meant to help is a bad trade, and we would rather say so than take the money — the reasoning is set out in what a trading community should cost. The sequencing question more broadly is covered in how to start day trading.
Frequently Asked Questions
Can you start day trading with $500?
Technically yes in forex and micro futures, and in a US cash stock account. Practically it is very hard, because fixed costs are a large percentage of a small balance and a sensible risk of 1% is only $5 per trade — often less than the spread and commission on the position. A $500 account is best treated as a live practice account, not a business.
Do you still need $25,000 to day trade stocks?
Not under FINRA's rule. The pattern day trader framework and its $25,000 minimum equity requirement were removed from Rule 4210 effective June 4, 2026. Firms may phase the change in through October 20, 2027 and may set stricter house requirements, so confirm the policy with your own broker before assuming it no longer applies.
What is the minimum to trade on margin?
FINRA requires a minimum of $2,000 in equity to engage in leveraged trading in a margin account, and maintenance margin of 25% of the current market value of long margin-eligible securities. Below $2,000 you can still hold a cash account and trade unleveraged, subject to settlement rules.
How much money do you need to day trade for a living?
That question cannot be answered responsibly, because it depends on returns nobody can promise. What can be said is the structure: living expenses drawn from a trading account are a withdrawal on top of drawdown, so the account must be large enough that a normal losing month does not force a change in strategy. Most traders who make the move do it with separate savings covering many months of expenses.
Bottom line
The regulatory answer in the US is now $2,000 for a margin account and nothing at all for cash accounts, futures or forex — the $25,000 gate came down on June 4, 2026, subject to your broker's own policy. The useful answer is different: fund the account at a level where 1% risk per trade comfortably exceeds the cost of placing the trade, using money whose loss would change nothing important in your life. Below that line, no amount of skill compensates; above it, capital stops being the constraint and process starts.