A cash account is a brokerage account where you must pay in full for any securities you buy before the trade settles

Unlike a margin account, where a broker lends you money to buy stocks or other investments, a cash account requires you to have the dollars already in the account. When you place an order to buy 100 shares of a stock, you need enough cash on hand to cover the full purchase price. The trade still settles in the standard timeframe—usually two business days—but the money has to be yours from the start.

This is the simpler, more restrictive account type. You cannot borrow against your holdings, you cannot short-sell, and you cannot use unsettled cash from a recent sale to buy something new before that sale clears. The tradeoff is that you avoid margin interest charges, you cannot be forced to sell positions to cover a margin call, and you face fewer regulatory restrictions on your trading activity.

Key Takeaways

  • A cash account requires you to pay the full purchase price before or at the time of trade, with no borrowing from your broker.
  • You cannot use margin (borrowed money), short-sell, or trade on unsettled funds, which limits your trading flexibility.
  • Cash accounts have no margin interest charges and no risk of a margin call forcing you to sell positions.
  • Most brokerages offer cash accounts as the default option for new investors, with no minimum balance requirement.
  • The SEC's "free riding" rule prevents you from buying and selling the same security in a cash account within the same settlement period.

How settlement and cash availability work in a cash account

When you sell a security in a cash account, the proceeds take two business days to settle. During those two days, the cash is not available to spend or reinvest. This is called the settlement period, and it applies to all brokerage accounts, not just cash accounts. If you sell 100 shares on Monday, the cash lands in your account on Wednesday afternoon, and only then can you use it to buy something else.

This creates a practical constraint: if you want to move money between positions frequently, you need enough cash sitting idle to cover your next purchase. A margin account lets you use unsettled proceeds immediately, but a cash account does not. Many active traders find this frustrating and switch to margin for that reason alone.

Some brokerages offer features like "cash sweep" or money market settlement, which move your unsettled cash into a money market fund temporarily so it earns a small return while you wait. The cash is still not available to trade with, but you are not losing it to zero interest.

The SEC's free riding rule and pattern day trader restrictions

The SEC prohibits "free riding" in cash accounts: you cannot buy a security and sell it before the purchase settles without having the cash to cover the purchase beforehand. If you buy shares on Monday with unsettled cash from a Friday sale, you have committed free riding, and your broker will flag the account or restrict it.

Cash accounts are exempt from the pattern day trader rule, which is one genuine advantage. A margin account with less than $25,000 gets restricted if you make four or more day trades in five business days. A cash account has no such restriction—you can day trade as much as you want with whatever capital you have. However, you still cannot free ride, so you need enough cash on hand to support the trading volume you want.

If your broker detects free riding, they may issue a warning, freeze the account for 90 days, or close it. The rules vary slightly by broker, so check your account agreement or call to confirm what triggers a restriction at your firm.

Cash accounts versus margin accounts: what you give up and what you keep

A margin account lets you borrow up to 50% of a stock purchase from your broker (the exact percentage varies by security). You pay interest on the borrowed amount, usually between 5% and 12% annually depending on the broker and the size of your loan. You also face the risk of a margin call: if your holdings drop in value and your equity falls below the maintenance requirement, your broker can force you to deposit more cash or sell positions to cover the shortfall.

A cash account has none of that. You own what you buy outright, you pay no interest, and no one can force you to sell. The cost is that you cannot amplify your buying power, and you cannot short-sell (betting that a stock will fall). For most beginning investors, this is not a meaningful loss—shorting is risky and uncommon anyway.

The other difference is regulatory scrutiny. Margin accounts are monitored more closely by the SEC and FINRA because borrowed money creates systemic risk. Cash accounts face fewer rules and fewer restrictions on what you can trade or how often.

Who should use a cash account

A cash account makes sense if you are a buy-and-hold investor who does not need to borrow money to invest. You have a clear budget, you buy positions and hold them, and you do not need the flexibility of margin. Most people in this category should use a cash account—it is simpler, cheaper, and safer.

A cash account also works well if you want to day trade but have less than $25,000. You can trade as frequently as you want without hitting the pattern day trader limit, as long as you have the cash to cover each trade. This is a real advantage for active traders with smaller accounts.

A cash account is not ideal if you want to short-sell, if you need to move money between positions very frequently and do not want to wait for settlement, or if you want to use leverage to amplify returns. For those situations, a margin account is necessary—though margin comes with costs and risks that you should understand before opening one.

Setting up and maintaining a cash account

Most brokerages default to a cash account when you open an account. You do not need to request one or sign extra paperwork. If you want a margin account, you usually have to apply and meet a minimum balance requirement, which varies by broker but is often $2,000 to $5,000.

There is no minimum balance to maintain a cash account at most brokerages. You can open one with $100 or $1,000 and start small. Some brokers charge inactivity fees if you do not trade for a long period, but this is rare and usually only applies to accounts with very small balances.

If you already have a margin account and want to switch to cash, you can usually do so by contacting your broker. They will convert the account, though some brokers require you to pay off any margin debt first. Once you switch, you are subject to the cash account rules immediately.

Common mistakes and how to avoid them

The most common mistake is trying to use unsettled cash to buy a new position. You sell shares on Monday, see the proceeds in your account on Tuesday, and assume you can buy something else. You can see the money, but it is not settled yet. If you buy before Wednesday, you have free-ridden, and your broker will restrict the account. Wait for the settlement date before reinvesting proceeds from a sale.

Another mistake is opening a margin account without understanding the interest charges and margin call risk. If you do not need margin, do not open one. The interest is real, and a margin call can force you to sell at the worst time. Stick with a cash account unless you have a specific reason to borrow.

A third mistake is assuming a cash account prevents you from trading actively. It does not—you can trade as much as you want as long as you have the cash. The constraint is that you need enough capital sitting in the account to support your trading volume. If you want to make ten trades a day, you need enough cash to cover all ten positions at once.

Frequently Asked Questions

Can I convert a margin account to a cash account?

Yes. Contact your broker and request the conversion. If you have any margin debt, you will need to pay it off first. Once the conversion is complete, the account is subject to cash account rules immediately, and you can no longer borrow or short-sell.

What happens if I accidentally free ride in a cash account?

Your broker will flag the violation and may issue a warning, freeze the account for 90 days, or close it. The exact consequence depends on your broker's policy. If you catch the mistake before your broker does, contact them and explain—some brokers are lenient on a first offense, especially if you correct it quickly.

Do I pay taxes differently on a cash account versus a margin account?

No. Tax treatment is the same regardless of account type. You report capital gains and losses the same way, and the holding period for long-term versus short-term gains is the same. The only difference is that margin accounts generate interest expense, which is tax-deductible if you itemize.

Can I day trade in a cash account with less than $25,000?

Yes. Cash accounts are exempt from the pattern day trader rule, so you can make as many day trades as you want with any account balance. The only limit is the cash you have available—you need enough to cover each position before you open it.

Is a cash account safer than a margin account?

Yes, in the sense that you cannot lose more than you invest and you cannot be forced to sell at a bad time. However, safety also depends on what you buy. A cash account does not protect you from picking bad stocks or taking on too much risk in your portfolio.