What Happens If You Don't Meet a Margin Call?
A margin call left unanswered doesn’t just sit there waiting indefinitely — at some point, the broker generally stops asking and starts acting.
The short answer
When a margin call isn’t met within the required window, a brokerage firm typically has the right to sell securities in the account on its own initiative, without further notice, to bring the account back into compliance with margin requirements. The firm decides which positions to sell and how much, and the account holder generally has little say in the process once it begins.
Why the broker can act unilaterally
The authority to liquidate is generally established in the margin agreement signed when a margin account is opened, which is part of why that agreement is worth more than a passing glance at account setup. Because the securities in the account serve as collateral for the loan, the broker has a direct financial interest in restoring the required equity level promptly once the response window for a call has passed, rather than continuing to carry the exposure indefinitely.
How the amount to sell is generally determined
A broker resolving an unmet call typically sells enough to bring the account’s equity back above the required maintenance threshold, sometimes with an additional buffer built in rather than cutting it exactly to the minimum. A few patterns are common:
- The broker chooses which positions to sell. This decision isn’t necessarily aligned with what the account holder would have chosen, and it may not consider tax consequences the way a planned sale would.
- More may be sold than strictly necessary. Some firms build in a cushion above the bare minimum to reduce the chance of a second shortfall if prices keep moving.
- Multiple positions can be affected. If one holding alone doesn’t cover the shortfall, or if the broker’s process spreads sales across the account, more than one position may be liquidated.
What can follow afterward
Beyond the immediate sale, an account that’s had positions liquidated to meet a call can face other consequences:
- Realized losses or gains. Selling at whatever price is available at the time can lock in outcomes different from what the account holder might have chosen with more control over timing.
- Reduced margin privileges. Some brokers restrict or reduce margin access on accounts with a recent history of unmet calls.
- Ongoing fees or interest. Any interest that accrued on the borrowed balance up to the point of liquidation is still owed, separate from the transaction itself.
Why this differs from ordinary account risk
In an account without borrowed money, a decline in value is absorbed entirely by the investor’s own choices about if and when to sell. Margin removes some of that control once initial and maintenance requirements aren’t met, handing the decision of what to sell, and when, to the broker instead. That shift in control is one of the core trade-offs of using leverage, separate from the cost of the interest itself.
The practical takeaway
An unmet margin call isn’t a warning that quietly expires — it typically converts into the broker’s own decision-making authority over the account, which is why understanding the response timeline matters as much as understanding the requirement itself.