Home › Guides › Beginner questions
What happens if you lose more than your account balance?
If your account goes below zero, you usually owe the broker the difference, and they can collect it like any other debt. It can only happen with borrowed money or leverage, so the simplest protection is knowing which trades carry that risk.
The short answer
If losses take your account below zero, the negative balance is usually a debt you owe your broker. In the US, brokers can ask you to pay it, and can send it to collections if you don't.
This can't happen on every kind of trade. It needs leverage, borrowed money or a short position. Plain stock buys in a cash account can lose what you put in, but not more.
When you can't lose more than you put in
Your maximum loss is the money you paid when you:
- buy stocks or ETFs in a cash account, with no borrowed money,
- buy options (calls or puts). The most you can lose is the price you paid,
- buy spot crypto with your own money, no leverage.
The value can still go to zero. That's a real loss. But you won't owe more.
When you can lose more than you put in
| Trade | Why it can go below zero |
|---|---|
| Stocks on margin | you borrowed part of the money |
| Short selling | a rising price has no ceiling |
| Futures | you post a small margin on a big contract |
| Leveraged forex | same idea: small margin, big position |
| Selling options without cover | losses can be far bigger than the premium you got |
The common thread is Leverage: controlling more than your cash. See leverage and margin explained.
How a negative balance happens
Normally, your broker watches your margin. If losses eat into it, you get a Margin call, a request for more money. If you don't add money, or the move is fast, the broker can close your positions for you.
That usually stops the loss before zero. Usually.
It fails when price jumps past every level in one move:
- a weekend or overnight Gap,
- surprise news, like a central bank decision,
- a market where nobody is buying at the price you need.
Then your stop, or the broker's forced close, fills far away from where it was meant to. See weekend gaps explained.
Two real examples
The Swiss franc, January 15, 2015. The Swiss National Bank suddenly removed its cap on the franc. The currency jumped in minutes, with almost no trading in between. Some forex traders' accounts went far below zero, and some brokers took large losses. Some brokers later forgave customer debts. Others didn't. Full story: the Swiss franc shock.
Oil below zero, April 20, 2020. The expiring May US crude oil futures contract settled at −$37.63 a barrel. A price below zero hadn't happened before. Traders long that contract lost more than the full value of the oil. See oil below zero.
Both are rare. Both show why "it can't go that far" isn't a plan.
Do US brokers protect against negative balances?
Not by default. In the UK and EU, rules require negative balance protection for retail clients trading CFDs, so a retail account can't go below zero there.
We aren't aware of a matching general rule for US retail accounts. Some US brokers have policies of their own, or decide case by case. Read your account agreement. Look for words like "deficit," "debit balance" or "negative balance."
Crypto platforms with leverage usually close ("liquidate") your position when your margin runs out. With isolated margin, the loss is generally limited to the margin on that position. With cross margin, the whole account can be used. Check your platform's rules. The crypto liquidation calculator shows where liquidation sits.
What happens next if you owe money
- The broker shows a negative balance or "debit" on your account.
- They ask you to pay it, usually within a set time.
- If you don't, they can restrict the account and send the debt to collections.
If this happens, contact the broker, ask for a statement of how the loss happened, and get advice if the amount is large.
How to rule it out
You can't control gaps. You can control your exposure to them:
- Use a cash account while learning. See cash vs margin account.
- Size from the stop, and keep the size small. At about 1% risk per trade, even a bad gap is usually a manageable loss. The position size calculator does the math.
- Use micro contracts instead of full-size futures while you learn.
- Avoid high leverage, even when it's offered.
- Plan for gaps. Don't hold big leveraged positions through the weekend or major news.
- Don't sell options without cover until you fully understand the max loss.
Why stops aren't a full guarantee: a stop order becomes a market order when it triggers. In a gap, the next price may be far beyond your stop. See how stop losses work overnight.
Questions
Can you lose more money than you invest in stocks?
Not when you buy stocks with your own cash. You can when you buy on margin or sell short, because borrowed money and rising prices can push losses past your deposit.
Do I have to pay back a negative balance?
Usually yes. A negative balance is generally a debt to the broker under your account agreement, and they can try to collect it.
Do US brokers have negative balance protection?
There's no general US rule that requires it for retail accounts, unlike the UK and EU rules for CFDs. Some brokers have their own policies, so check your agreement.
Can you lose more than you invest in crypto?
Not with spot crypto bought with your own money. With leverage, platforms usually liquidate your position first, but check how your platform handles losses past your margin.
Want the next step? We'll walk you through it.
Four free lessons by email, one every few days — each with a 10-minute exercise on a real chart.
Send Me the Free Lessons 4 short emails · No spam · Unsubscribe anytimeOr see the whole method, step by step:
See What’s Inside the Course Try everything free first. Decide when you're ready. · Open the free chart tool (works in the TradingView phone app)One chart idea a day, in plain English. Follow along: