Free riding happens when you buy a stock and sell it before the purchase has officially settled. In a cash account, you must have fully settled funds to buy a security. If you sell the stock to cover the cost before the settlement period ends, you have violated the rule.
In 2026, the landscape of stock settlement has shifted dramatically with the implementation of the T+1 settlement cycle. This change has made free riding easier to avoid for many traders, but it remains a critical rule to understand. If you are getting a cash account restriction notice on IBKR, this guide will explain exactly why it happened, how the new T+1 rule affects you, and what steps you can take to resolve it.
About this guide: I'm Lawrence, the writer behind supa.is. Between February and May 2026 I've published 150+ articles on supa.is across crypto and brokerage tooling — including 30+ Interactive Brokers-specific guides (recent examples: IBKR Account Setup, IBKR Paper Trading, IBKR Tax Lots). The most-repeated reader question across that IBKR archive is exactly how to avoid free riding violations and cash account restrictions, which is why I'm publishing this standardized guide instead of answering one-off.
What Exactly Is a Free Riding Violation?
Free riding is a FINRA (Financial Industry Regulatory Authority) rule that applies to cash accounts in the United States. The rule states that you cannot buy a security and then sell it before the purchase has settled.
In plain English, you must have the full amount of settled cash in your account to buy a stock. If you deposit money, buy a stock, and then sell that stock before the deposit has settled, you have "free ridden." You essentially used unsettled funds to make a trade, which is prohibited.
When IBKR detects a free riding violation, they will place a restriction on your cash account. Depending on the severity and frequency, this can result in:
* A 90-day restriction on buying on margin (if applicable). * A requirement to maintain a minimum cash balance. * A forced liquidation of your positions. * In severe cases, the account may be restricted from trading entirely until the funds settle.The Game Changer: T+1 Settlement in 2026
For years, the standard settlement time for US equities was T+2 (Trade date plus 2 business days). This meant if you bought a stock on Monday, the cash wouldn't settle until Wednesday. If you sold it on Tuesday, you had free ridden.
In May 2024, the US stock market officially shifted to T+1 settlement. This means trades now settle the next business day. If you buy a stock on Monday, it settles on Tuesday.
This change has drastically reduced the frequency of free riding violations. You now have a 24-hour window (excluding weekends and holidays) to sell a stock without violating the rule. However, it is crucial to remember that T+1 does not mean "instant." If you deposit money into your IBKR cash account on Friday, it will not settle until Monday. If you try to buy a stock on Friday using that newly deposited cash, and sell it on Monday morning, you have still free ridden.
How to Check Your Settled Cash on IBKR
To avoid free riding, you must know the difference between your "Available Cash" and your "Settled Cash." Available cash might include funds that are still in the process of settling.
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Open an Interactive Brokers Account →On the IBKR Client Portal, you can check your settled cash in a few ways:
- Account Window: Log in to your Client Portal. Go to the "Account" tab. Under the "Cash and Margins" section, look at the "Settled Cash" line. This is the amount of money you can safely use to buy stocks without risking a free ride.
- IBKR Mobile App: Open the app and tap on your account summary. The settled cash balance will be listed alongside your buying power.
Common Scenarios That Trigger Free Riding
Even with T+1, free riding is still a common issue for new IBKR users. Here are the most common scenarios:
The "Deposit and Trade" Mistake
You deposit $1,000 into your cash account on Monday morning. By Monday afternoon, the money shows up in your "Available Cash." You immediately buy $1,000 worth of Apple (AAPL) stock. On Tuesday, the stock is up, and you sell it to lock in the profit. Why it's a violation: The $1,000 you deposited on Monday did not settle until Tuesday. When you sold the stock on Tuesday, you were using unsettled funds to cover the trade. You free rode.The "Weekend" Trap
You deposit money on Friday. The settlement time is T+1, so the money should settle on Monday. You buy a stock on Monday morning, and sell it on Monday afternoon. Why it's a violation: While the trade settles on Monday, the *deposit* also settles on Monday. However, the timing of the settlement can sometimes lag depending on the bank transfer method (e.g., ACH vs. Wire). If the deposit hasn't fully cleared by the time you execute the sell order, you will get a violation. It is safest to wait until Tuesday morning to trade funds deposited on Friday.The "Dividend" Free Ride
You own a stock in your cash account. The stock goes ex-dividend, and you receive a dividend payment. You immediately use that dividend cash to buy another stock. Why it's a violation: Dividend payments take time to settle. Just like a deposit, the dividend cash is "available" but not "settled." If you buy a stock with unsettled dividend cash and sell it before the dividend settles, you have free ridden.How to Fix a Free Riding Violation on IBKR
If you have already received a notice of a free riding violation from Interactive Brokers, don't panic. The account is usually not closed, but you must take action to resolve it.
First, read the notice. IBKR will send you a notification via the Client Portal and email. The notice will specify the exact trade that caused the violation and the duration of the restriction.
The fastest way to resolve it is to deposit cash into your account and let it settle. Once the funds are settled, the restriction will typically be lifted. If you are under a 90-day restriction, you must maintain a minimum cash balance (often $2,000 or more, depending on the violation) for the duration of the restriction.
If you believe the violation was a mistake, or if you need clarification on the specific rule that was broken, you can contact IBKR support through the Client Portal under the "Contact Us" section. They are generally helpful and can explain the exact mechanics of your violation.
Cash Account vs. Margin Account: Which Should You Choose?
If you are a frequent trader, a cash account might be the wrong choice for you. The strict settlement rules of a cash account are designed for long-term investors who buy and hold. If you like to trade actively, a margin account is almost always the better option.
A margin account allows you to trade with unsettled funds. You can buy a stock on Monday and sell it on Monday without any free riding violation. The trade-off is that you are borrowing money from IBKR to make the trade, which means you will pay interest on the margin loan. However, if you sell the stock before the end of the day, the interest is often negligible (or zero, depending on the account size and promotions).
If you are currently on a cash account and keep hitting free riding violations, consider switching to a margin account. You can do this by logging into your Client Portal, going to the "Account" tab, and selecting "Change Account Type."
Note: Steps below are reconstructed from official docs (IBKR Account Setup). Verify each step against the current UI before relying on it.
How to Avoid Free Riding in the Future
Prevention is always better than cure. To ensure you never get a free riding violation on your IBKR cash account, always wait until your deposits and dividends have fully settled before using the cash to buy stocks. Check the "Settled Cash" line in your Account Window. If you need to trade immediately after depositing, a wire transfer is your best bet since they settle faster than ACH transfers. If you are going to trade actively, keep a buffer of settled cash in your account so you have fully settled funds to cover your trades even if new deposits are still settling. And if you are an active trader, consider switching to a margin account—it eliminates the settlement friction entirely, allowing you to trade with unsettled funds.
FAQ
What is the penalty for a free riding violation?
The penalty depends on the severity. For a first-time offense, you might just get a warning. For subsequent offenses, IBKR may place a 90-day restriction on your account, requiring you to maintain a minimum cash balance. In extreme cases, the account may be restricted from trading entirely until the funds settle.How long does it take for a free riding restriction to be lifted?
If you are under a 90-day restriction, you must maintain the required minimum cash balance for 90 days. Once the 90 days are up, the restriction is automatically lifted. If you deposit settled funds to cover the violation immediately, the restriction may be lifted sooner.Can I trade options in a cash account without free riding?
Yes, but the same rules apply. If you buy an option and sell it before the purchase has settled, you have free ridden. Options settle on T+1, just like stocks.Does T+1 settlement mean I can trade instantly?
No. T+1 means your trade settles the next business day. If you deposit money on Friday, it settles on Monday. If you buy a stock on Monday and sell it on Monday, you have free ridden because the deposit hasn't settled yet.Is free riding illegal?
Free riding is not a criminal offense, but it is a violation of FINRA rules. FINRA requires brokers to enforce these rules to protect the integrity of the market. If you free ride, your broker (IBKR) is required to restrict your account.Risk Warning
Risk Warning: Trading stocks and options involves substantial risk of loss. Never invest more than you can afford to lose. This is not financial advice. Always do your own research and consult with a licensed financial advisor before making investment decisions.