Your account type determines whether you can borrow money to trade. This article explains how a margin account and a cash account differ in borrowing, buying power, settlement, and risk, so you can tell which rules apply to your own trades.

A margin account lets you borrow money from your broker to buy securities, using your existing cash and investments as collateral. Borrowing increases your buying power, but it also magnifies both your gains and your losses. Regulators and brokers set minimum equity requirements (for example, 50% initial margin and 25% maintenance margin). If your equity falls below these levels, you receive a margin call and must either add funds or have positions liquidated.

In a cash account, you must pay for every purchase in full with your own funds, and borrowing isn’t allowed. Cash-account trades are subject to settlement requirements. Freeriding can occur when securities are purchased and sold before sufficient funds are available to pay for the purchase.

Key Differences

Feature
Margin Account
Cash Account
Borrowing
Allowed, with collateral
Not allowed
Buying power
Cash and borrowed funds
Limited to available cash
Short selling
Currently not available at LB
Not permitted
Interest charges
Charged on borrowed funds
None
Margin requirements
Initial and maintenance margins apply
None
Risk level
Higher, as losses can exceed deposit
Lower
Settlement rules
Can reinvest immediately with margin buying power
Must wait for trades to settle

Key Takeaways

  • A margin account lets you borrow from your broker, which increases both your buying power and your risk.

  • A cash account limits you to your own settled funds and doesn’t allow borrowing.

  • A margin account requires you to meet both initial and maintenance margin requirements. If your equity falls below these levels, you receive a margin call.

  • In a cash account, you must wait for settlement before you reinvest. Reinvesting early can lead to a freeriding violation.

Disclosures

This article is for informational purposes only and does not constitute financial advice.