To avoid good faith violations, day traders working in a cash account do one of three things: they trade only with fully settled cash, they hold anything bought with unsettled proceeds until those proceeds clear the next business day, or they switch to a margin account (or limited margin in an IRA) where the settlement gap stops being a constraint. A good faith violation happens when you buy a security with unsettled sale proceeds and then sell that security before the original sale settles. Three violations inside a rolling twelve-month window typically lock your account into a 90-day restriction, which is enough to sideline an active strategy for a full quarter.
Why the Settlement Cycle Creates the Trap
When you sell a stock, the cash does not land in your account instantly. Under federal rules, most securities settle on a T+1 basis, meaning one business day after the trade date.1eCFR. 17 CFR 240.15c6-1 – Settlement Cycle Sell on Monday, and those proceeds are not considered settled until Tuesday. During that gap, the clearinghouse verifies the trade and moves funds between brokers.
The one-day delay is the whole problem. Unsettled cash still shows up in your buying power, so it looks spendable. Your platform might display $10,000 available, but if $5,000 of that came from a sale an hour ago, only $5,000 is truly settled and free to rotate. The T+1 cycle applies broadly to stocks, ETFs, and options.2Investor.gov. New T+1 Settlement Cycle – What Investors Need To Know Government securities, municipal bonds, and certain money market instruments follow different schedules.
What Actually Counts as a Violation
Good faith violations only apply to cash accounts, where every purchase must be backed by funds you actually have. Regulation T, issued by the Federal Reserve Board, requires that cash-account purchases be paid for in full by settlement date.3eCFR. 12 CFR 220.8 – Cash Account Selling before that deadline signals you were never going to pay with your own settled capital.
The violation follows a three-step chain. You sell Stock A on Monday morning for $5,000; those proceeds will not settle until Tuesday. You then use that unsettled $5,000 to buy Stock B on Monday afternoon, which is permitted. Then you sell Stock B before Tuesday. That last step is the violation.
The distinction to internalize: buying with unsettled funds is not the problem. Selling what you bought before those funds settle is. Hold Stock B until Tuesday, when Stock A’s proceeds clear, and no violation occurs. The Federal Reserve Board’s own guidance makes this explicit — a customer without sufficient funds on trade date can still purchase securities, provided the security is not sold before being paid for in full.4Board of Governors of the Federal Reserve System. Application of Reg T to Trading in a Cash Account
What Three Violations Costs You
Most brokerages issue a warning for the first violation. Accumulate three inside a rolling twelve-month window and the account gets restricted for 90 calendar days.5Fidelity. Avoiding Cash Account Trading Violations
During those 90 days, you can only buy securities if you already have settled cash in the account before placing the trade. The ability to buy with unsettled funds disappears entirely. The restriction is grounded in the regulation itself: 12 CFR 220.8(c) provides that when a security is sold without having been previously paid for in full, the right to delay payment beyond the trade date is withdrawn for 90 calendar days.3eCFR. 12 CFR 220.8 – Cash Account For an active trader, that effectively kills any strategy that relies on rotating capital quickly.
Rules That Keep a Cash Account Clean
If you are trading in a cash account, either by choice or because you do not meet margin requirements, four habits do most of the work.
Find the settled-cash number on your platform. Do not rely on the “buying power” figure. It lumps settled and unsettled cash together and will mislead you. Look for a line labeled “settled cash,” “cash available to withdraw,” or something similar in your account balances. That is what has actually cleared T+1. Every major broker displays it, though the label varies.
Keep a settled-cash buffer. The most reliable method is holding a cushion of settled cash you do not commit to any single trade. If your typical position size is $3,000, keeping $6,000 or more in settled cash means you always have cleared funds to work with while yesterday’s proceeds settle. Unglamorous, but it works.
Plan the exit before you enter. If you sell Stock A in the morning and use those unsettled proceeds to buy Stock B, you have to hold Stock B until at least the next business day. Before entering that second trade, ask honestly whether you can sit on it overnight. If the answer is no, use settled funds or skip the trade.
Keep a trade log. Write down each sale, note when proceeds settle, and flag which purchases are funded by unsettled cash. Two minutes of bookkeeping makes the violation pattern visible before you trigger it. Traders who get caught are almost always the ones who lost track of which dollars were settled.
Switching to a Margin Account
The structural fix is a margin account. The broker extends short-term credit that bridges the settlement gap, so you can sell Stock A and immediately buy and sell Stock B without waiting on anything. The settlement timing issue stops existing as a constraint.
The costs are real. Brokers charge interest on margin balances, calculated daily on the amount borrowed, and rates are tiered so smaller balances pay higher rates. For brief intraday holds settled by market close, interest may be minimal, but overnight positions accumulate. FINRA requires at least $2,000 in account equity before you can trade on margin at all.6FINRA.org. Know What Triggers a Margin Call
The bigger risk is forced liquidation. If your equity drops below maintenance requirements, the broker issues a margin call for additional funds. FINRA sets the regulatory floor at 25% of the market value of long positions, but most brokers impose stricter house requirements, often 30% to 40%.6FINRA.org. Know What Triggers a Margin Call Brokers can raise those thresholds without notice and can sell your positions to satisfy the call without waiting for you to deposit funds.
Limited Margin in an IRA
If you trade actively inside a retirement account, limited margin sits between the two options. Traditional, Roth, SEP, rollover, and SIMPLE IRAs can qualify, and the feature lets you trade with unsettled proceeds without triggering good faith violations.7Fidelity Investments. What Is Limited Margin Trading?
Limited margin does not let you borrow against your holdings the way a standard margin account does. There is no leverage and no margin interest. It removes the settlement timing restriction and nothing else. Some brokerages require $25,000 in equity to activate limited margin in an IRA.7Fidelity Investments. What Is Limited Margin Trading? If you are already doing enough volume in a retirement account to worry about settlement violations, it is worth enabling.
The Pattern Day Trader Rule Comes With Margin
Moving to a margin account solves the settlement problem but exposes you to a different one. If you execute four or more day trades within five business days, and those trades represent more than 6% of your total activity in the margin account during that period, you are classified as a pattern day trader.8FINRA.org. Day Trading
Once flagged, you must maintain at least $25,000 in equity at all times. Drop below that level and you cannot day trade until the balance is restored. Exceed your day-trading buying power and the broker issues a special margin call: you have five business days to deposit funds, and failure to meet it restricts you to cash-only trading for 90 days.8FINRA.org. Day Trading The $25,000 threshold prices many smaller accounts out of margin day trading, which is exactly why cash-account discipline around good faith violations matters so much at that size.