The pattern day trader rule. The $25,000 floor.

The pattern day trader rule, written by FINRA, is the single biggest regulatory constraint on small account day traders in the US. The rule says that any margin account executing four or more day trades within five rolling business days has to maintain $25,000 in equity. Below that, the account is restricted from further day trading.

Most beginners with small accounts hit the rule by accident, get flagged as pattern day traders, and are locked out. Knowing the rule before it triggers is one of the cheapest things a new trader can do.

What the rule actually says

FINRA Rule 4210 defines a pattern day trader as any margin account that meets all of these:

One. Executes four or more day trades within five rolling business days.

Two. Those day trades represent more than six percent of the account's total trading activity in the same window.

Three. The account is held with a US registered broker dealer subject to FINRA rules.

The $25,000 equity minimum applies the moment the account is flagged. If equity drops below $25,000, the account is restricted from further day trading until the equity is restored.

What counts as a day trade

A day trade is opening and closing (or shorting and covering) the same security in the same trading session. Buying AAPL at 10 AM and selling it at 2 PM is one day trade. Buying again at 2:30 and selling at 3:30 is a second day trade (on the same security same day).

Multiple buys and a single sell that closes everything count as one day trade. Three lots of AAPL bought at three different times during the morning, all sold at 3 PM in one order, is one day trade.

Multiple sells closing a position bought once earlier the same day count as one day trade if the entire position is closed.

Holding any portion overnight does not count as a day trade. Buy AAPL at 10 AM, sell half at 2 PM, hold the rest. The 2 PM sell does not count as a day trade because the position was not fully closed in the same session.

Options day trades count the same way. Buying an SPY call at 10 AM and selling at 11 AM is one day trade.

How to count day trades

The window is rolling five business days. Today plus the previous four trading days. If today is Friday, the window is Monday through Friday. If today is Wednesday, the window is the prior Thursday through this Wednesday (because Saturday and Sunday do not count).

Most broker platforms (Schwab, Fidelity, Interactive Brokers, Webull, Robinhood) show a day trade counter on the account dashboard. It updates throughout the day as trades execute. Check it before any closing order that would create a fourth day trade in the window.

The three options for accounts under $25,000

One. Keep day trades to three or fewer in any five day window.

This is the cleanest option. Plan the week. Take three high quality day trades. Hold any other positions overnight as swing trades. The mental discipline of three day trades per week also tends to improve trade selection because the trader is more selective.

Tracking is the operational challenge. The trader has to count active day trades in the rolling window and refuse to close any fourth round trip. Most platforms show the counter.

Two. Use a cash account instead of a margin account.

Cash accounts have no PDT restrictions. The trader can take unlimited day trades within the limit of the cash that has settled.

The constraint is settlement. Stocks settle T plus 1 (one business day after the trade). Options settle T plus 1 as well. The cash from a sale cannot be reused until it settles.

This means a trader with $10,000 in a cash account can use $10,000 today, but cannot use the same $10,000 again tomorrow if it has not settled. The effective number of day trades per day depends on the cash mix.

Cash accounts also do not allow shorting (no margin to borrow shares). Day trading shorts requires a margin account, which brings PDT back into play.

Three. Hold above $25,000 in equity.

Above the threshold, unlimited day trades are allowed within margin rules. The trader can size up, use margin, and trade actively.

For accounts in the $15,000 to $25,000 range, the gap is sometimes closed faster by saving from outside income than by aggressive day trading. Adding $1,000 a month from the day job over ten months crosses the threshold without taking the risk that the small account requires to grow itself.

What does not count under PDT

Swing trades (positions held overnight) do not count. The trader can take unlimited overnight positions regardless of equity.

Long term investing does not count. Buying and holding for weeks, months, or years has no PDT restriction.

Futures day trading is regulated separately and does not fall under PDT. Futures traders can day trade with smaller accounts (typically $5,000 to $10,000 day trading minimum at most futures brokers). The PDT rule applies only to stocks and stock options.

Forex is regulated separately and has no PDT equivalent. Forex day traders can use small accounts.

Crypto on exchanges (not stock market crypto products like spot Bitcoin ETFs) has no PDT rule. Crypto trades on different infrastructure outside of FINRA's jurisdiction.

What happens when you violate PDT

The fourth day trade in the rolling window triggers the flag. The broker marks the account as a pattern day trader. If equity is below $25,000, the account is restricted.

Most brokers allow one courtesy reset of the flag, only once in the account's lifetime. The reset removes the flag and clears the restriction. After that, the rule applies strictly.

Repeated violations can lead to a 90 day restriction where the account can only close existing positions, not open new ones. This is the worst case and ends most small account day trading careers.

The five rules for small accounts under $25,000

One. Track day trades obsessively.

Check the day trade counter on the platform before every closing trade. Refuse to close anything that would push the count to four.

Two. Use the cash account if day trading is the primary activity.

Below $25,000 with active day trading intent, the cash account avoids PDT entirely. The settlement constraint is real but manageable with planning.

Three. Default to swing trades on small accounts.

Holding overnight does not count toward PDT. The trader who structures most trades as overnight swings has unlimited freedom regardless of account size.

Four. Build to $25,000 from outside income.

The fastest path to PDT relief for most small accounts is saving from a day job. The trading account at $15,000 plus $1,000 a month from saving reaches $25,000 in ten months without taking trading risk.

Five. Plan the week in advance.

Decide on Sunday which three day trades the upcoming week is likely to produce. Avoid surprise fourth trades by knowing in advance which setups are worth a day trade and which are overnight holds.

Where the audit fits

The audit reads the actual trades in the record and counts day trade frequency. For most retail accounts under $25,000, the pattern is too many day trades, too many that turned into accidental fourth trades, or constant proximity to the PDT limit. The plan locks the structure that fits the account size. Five to seven pages.