Do all brokers offer negative balance protection?

No. It is mandatory for retail clients under ESMA and FCA rules, and voluntary elsewhere. Large brands often operate both a regulated European entity and an offshore one, so the answer depends on which entity holds your account. Every broker listed in this catalogue records it, but it should still be confirmed on the specific agreement you sign.

Does it mean I cannot lose more than I deposit?

On the account it applies to, yes — that is exactly what it caps. It does not stop you losing the whole deposit, and it does not apply to funds held at a different entity or on an account type that excludes it.

Is it the same as segregated client funds?

No. Segregation protects your money if the broker becomes insolvent. Negative balance protection covers a market gap that drives your account below zero while the broker is perfectly healthy. They cover different failures and a broker can offer one without the other.

Any strategy holding positions through weekends or scheduled events is exposed to gaps, and a gap is the one case in which an EA's stops cannot act. The protection does not improve the strategy; it bounds what happens when the strategy is bypassed entirely.

Negative balance protection explained — the only cover that survives a gap

In plain English

If the market gaps so far that your account goes past zero, this policy means the broker absorbs the difference rather than sending you a bill. It caps the worst case at what you put in.

Why it matters

Every other risk control acts on price. This one acts on the one scenario where price never traded: a gap that jumps past the stop-loss and the stop-out together. It is the difference between a bad month and a debt.

It is the only protection that survives a gap. Stops, stop-outs and EA exit logic all need a price to trade at, and a gap provides none.
It bounds the loss to the deposit, which is what makes an account a known quantity rather than an open liability.
It is mandatory for retail clients under some regulators and voluntary elsewhere, so it depends on which entity of a brand holds the account, not on the brand.
It has been tested in public: the SNB removed the Swiss franc floor in January 2015 and retail accounts went tens of thousands of dollars negative, which is why the rules exist.

How brokers define it

The policy states that a client account will not be allowed to remain below zero, with the shortfall written off by the broker.
Under ESMA rules in the EU and FCA rules in the UK it is a mandatory protection for retail clients, applied per account.
Outside those regimes it is a commercial promise in the client agreement rather than a regulatory requirement, and its wording matters.
It engages after the fact. Positions are still closed at the gap price; the policy resets the resulting negative balance to zero.
It is separate from client-fund segregation and from any compensation scheme, which cover broker insolvency rather than market gaps.

What differs between brokers

Whether it is a regulatory obligation or a discretionary policy, which follows from the entity holding the account rather than the brand on the website.
Whether it applies to all account types, including professional or high-leverage accounts where it is often expressly excluded.
Whether it is per account or per client, which decides what happens when one account of several goes negative.
Whether it is excluded in cases the broker classifies as abusive trading or arbitrage.
How quickly the balance is reset, and whether trading is suspended in the meantime.

Impact on EA performance

It caps the worst case of any EA at the account balance, which makes running one on a funded account a bounded decision.
It changes nothing about the EA's own risk: positions still close at the gap, and everything above zero is still lost.
It matters most for strategies that hold positions through weekends and releases, where gaps are the exposure that stops cannot cover.
It is invisible in a backtest. The Strategy Tester has no concept of a negative balance being written off, so it never appears in a report.
It is a reason to size an EA on the assumption that a stop-loss can be skipped entirely, rather than on the assumption it will always fill.

What to confirm before funding

That the specific entity holding the account provides it, in the client agreement rather than on the marketing page.
That it applies to the account type being opened, including any high-leverage or professional tier.
Whether it is stated as a regulatory obligation or as a discretionary policy.
Whether any carve-outs exist for trading the broker classifies as abusive.
That it is not being confused with fund segregation or an investor compensation scheme, which cover a different failure.

Typical risks

Reading a group website that states the protection, while the account is actually opened with an offshore entity of the same brand that does not provide it.
Opting into a professional or high-leverage account and losing the protection as part of the trade-off, often in a single line of the agreement.
Treating the policy as a risk control, and sizing positions larger because the downside is capped at the deposit.
Assuming it covers broker insolvency. It covers a negative balance, not the return of funds if the broker fails.

Example

A weekend gap on an account with three open positions, sized at a level a normal drawdown never threatened. The stop-losses are in place and never trade.

Equity at Friday close: $5,000; Margin level comfortable, stop-losses set 40 pips away.
Monday open: gapped 300 pips against; No price traded between the two levels, so no stop could fill.
Positions closed at: the gap price; Loss $8,200 — more than the account held.
Balance after the policy: $0; Without it, the account shows −$3,200 as a debt.

The stop-losses were correctly placed and entirely irrelevant. Between Friday and Monday there was no price at which they could have been filled.

Calculation 5,000 − 8,200 = −3,200 → 0

Result The deposit is lost either way; the debt is not incurred

How it is used

Treat it as a floor under the worst case, not as a component of the trading plan. It changes what happens after everything else has already failed.

Range	What it means
Mandatory under the regulator holding the account	The strongest form. It is an obligation rather than a promise.
Stated in the client agreement of the entity you signed with	A contractual commitment. Read the carve-outs.
Stated on the group website but not in your entity's agreement	It may not apply to your account at all. Confirm with the entity.
Absent, or excluded on your account type	A gap can produce a debt. Position size is now the only limit that exists.

Check the entity, not the brand. Groups operate several licences and the protection follows the licence.
Size positions as if a stop-loss could be skipped completely, because in a gap it is.
Reduce exposure before scheduled events that gap — weekends, central bank decisions, referendums — rather than relying on the backstop.
Keep the distinction clear between this policy, fund segregation and compensation schemes; they cover three different failures.
Re-read it when switching account types. High-leverage and professional tiers are where it is most often excluded.

Broker pages in this catalogue record negative balance protection as a field alongside the execution model and leverage, so it can be compared on the same row rather than hunted for in prose.

Common mistakes

Treating it as a risk control

It engages only after the entire deposit has been lost. Sizing positions more aggressively because the downside is capped means accepting a total loss more often in exchange for avoiding a debt that proper sizing would have avoided anyway.

Assuming the brand equals the entity

Large brokers operate separate legal entities under different regulators, and retail clients are frequently onboarded to the offshore one. The protection follows the entity that appears on the client agreement, which is not always the one described on the front page.

Confusing it with client fund protection

Negative balance protection covers a market gap taking an account below zero. Segregated accounts and compensation schemes cover the broker failing. A broker can provide one without the other, and the two answer entirely different questions.

Believing stop-losses make it unnecessary

A stop-loss is an instruction to trade at a price. In a gap that price never exists, so the order fills at the first price that does. The scenario this policy is for is precisely the one in which every price-based control has already been bypassed.

Frequently asked questions

Do all brokers offer negative balance protection?: No. It is mandatory for retail clients under ESMA and FCA rules, and voluntary elsewhere. Large brands often operate both a regulated European entity and an offshore one, so the answer depends on which entity holds your account. Every broker listed in this catalogue records it, but it should still be confirmed on the specific agreement you sign.
Does it mean I cannot lose more than I deposit?: On the account it applies to, yes — that is exactly what it caps. It does not stop you losing the whole deposit, and it does not apply to funds held at a different entity or on an account type that excludes it.
Is it the same as segregated client funds?: No. Segregation protects your money if the broker becomes insolvent. Negative balance protection covers a market gap that drives your account below zero while the broker is perfectly healthy. They cover different failures and a broker can offer one without the other.
Does an EA need it?: Any strategy holding positions through weekends or scheduled events is exposed to gaps, and a gap is the one case in which an EA's stops cannot act. The protection does not improve the strategy; it bounds what happens when the strategy is bypassed entirely.

Related terms

Related resources

Tool Risk of Ruin How often a given position size ends an account, before any gap is considered. Guide Editorial Policy How broker information on this site is recorded and what is disclosed about it. EAs Browse EAs by risk level Risk tier is the first thing to read when the worst case is capped by the deposit.