T+1 Settlement: Why Sold Stock Cash Is Not Yours to Withdraw Yet

Trade date is not settlement date

A trade is an agreement. Settlement is the delivery of what was agreed. The price is fixed on the trade date; the cash and the shares move on the settlement date, and the gap between them is the window in which neither side has everything.

For US securities, that window was two business days for years. The SEC shortened it: the standard cycle went “from two business days after the trade date (T+2) to one (T+1)”, and the release states that “the compliance date for the final rules is May 28, 2024.” The same release describes the scope as “most broker-dealer transactions in securities” — a phrase worth reading literally, because the exceptions sit at the edges of the market rather than in the middle of it.

FINRA states the current position from the investor’s side in one sentence: “The current settlement time for most equity trades is T+1, or the next business day.”

That is the whole change. The consequences are not in the number of days; they are in what a cash account is allowed to do while the number is running.

What Regulation T actually requires

The rule that governs a US cash account is Regulation T, and the operative section is 12 CFR 220.8. Its opening permission is narrow. A broker may buy or sell for a customer in a cash account if “there are sufficient funds in the account”, or if the broker “accepts in good faith the customer’s agreement that the customer will promptly make full cash payment for the security or asset before selling it and does not contemplate selling it prior to making such payment.”

Read the second clause twice, because it contains two conditions rather than one. The customer must agree to pay in full, and the customer must not intend to sell before paying. An account that buys first and hopes the sale of the same position will fund the purchase is outside the permission the rule grants, even if the cash arrives in time.

The timing requirement is in paragraph (b). A broker “shall obtain full cash payment for customer purchases” within one payment period of the purchase date. Before the 2024 change, that period was two business days; with the cycle shortened, it is one. The payment period is not a grace period for the customer’s convenience — it is the deadline the broker is held to.

Unsettled funds: buying power is not cash

Brokers show two different numbers, and they are not the same number:

The middle row is where most confusion lives. A broker is not doing anything improper by letting a customer trade with unsettled proceeds; that is a normal cash-account behaviour. What the arrangement does not do is make the proceeds settled. The distinction surfaces when the customer sells the newly bought position before the original proceeds arrive.

A second, quieter distinction: settled cash and cleared deposits are not identical either. A deposit can be settled at the broker and still subject to a hold, and a hold is a broker policy rather than a regulatory cycle. Reading the account’s own “settled funds” line is more reliable than reading “funds available to trade”.

The two sequences that restrict an account

FINRA describes both failure modes directly.

Free-riding. “Buying and selling the same security in a cash account before paying for it is known as ‘free-riding,’” and FINRA describes it as “a violation of the Federal Reserve’s Regulation T that can lead to strict account restrictions.” The sequence is: buy, never fund the purchase, sell the same security to cover it. The violation is not that the customer lost money; it is that the broker extended credit without a margin agreement.

Good faith violation. A customer can also incur a good faith violation “if you purchase a security with cash from a transaction that hasn’t settled yet” and then “sell the security before the proceeds used to fund the purchase have settled.” Nothing is overdrawn here and no credit is extended. The problem is that the purchase rested on a payment that had not yet happened, and the resale removed the only source of that payment.

Why the shortened cycle changed the failure mode

Shortening the cycle from T+2 to T+1 did not change the rules about free-riding or good faith violations. It changed how much room a customer has to make a mistake inside them.

Under T+2, a purchase funded by unsettled proceeds had two business days before the broker’s payment deadline arrived. Under T+1, the same sequence has one. The violation is the same violation; the window in which it can be created, noticed and cured is half as long. That is a mechanical consequence of the calendar, and it is the reason the operational side of the change mattered more than the investor-facing summary suggested.

Where the crypto analogy breaks

A trader who moves between a brokerage account and a crypto exchange usually carries one intuition across: that a balance shown on screen is a settled balance.

On a crypto venue, the balance in the account is an entry in the venue’s own ledger. A trade between two customers changes two entries and settles immediately by the venue’s definition. A withdrawal is a separate event, which then waits for a blockchain transaction to reach whatever finality that chain offers. Those are two different clocks, and neither is a T+1 cycle: the internal trade is instant, and the on-chain leg is as fast or as slow as the network is.

A brokerage cash account is the opposite arrangement. The internal ledger is deliberately not final until settlement, and the withdrawal restriction follows from that. The two systems are not more or less advanced than each other; they are built to answer different questions. A crypto venue answers “did the trade happen”, a brokerage cash account answers “has the money arrived”.

The check worth making before you sell to fund a buy

The practical rule is a sequence, not a threshold:

1. Read the account’s settled cash, not its buying power.
2. If the purchase depends on proceeds from a sale, check whether those proceeds have settled.
3. If they have not, either wait, or fund the purchase from settled cash, or use an account type that is designed to bridge the gap.
4. Do not sell the newly bought position before the funding proceeds settle.

None of this is investment advice, and none of it changes the market risk of the position itself. It is bookkeeping — the kind that decides whether an account keeps its unrestricted status, which is a far more expensive thing to lose than a day of interest.

Risk note. The settlement cycle, the Regulation T requirements and the violation categories in this article were read from the SEC’s 2023 release, FINRA’s investor guidance and the published text of 12 CFR 220.8 on 2026-10-27. Rules, broker policies and payment periods change; check the current rule text and your broker’s own disclosure before relying on a number. Nothing here is investment, tax or legal advice.