01

Start with the question your balance cannot answer

You sell a US stock and immediately see the transaction in your brokerage account. Before using the proceeds, answer a narrower question: which funds will pay for the next purchase, and when will those funds settle? A completed sale, an account balance and a payment obligation describe different parts of the same sequence. Reading them as interchangeable can obscure an otherwise straightforward cash-account problem.

This lesson builds a manual worksheet for ordinary stock transactions in a cash account. It does not recommend frequent trading or tell you whether a particular stock is attractive. Its purpose is to help you reconstruct the money trail, identify a missing fact and ask your broker a precise question. Keep the investment decision and the account-funding decision on separate lines; a strong company thesis cannot resolve an unpaid purchase.

02

Put two dates beside every transaction

The SEC’s investor bulletin describes settlement as the transfer of securities to the buyer and cash to the seller. For most covered US transactions, the standard cycle became one business day after the trade date on May 28, 2024. This is the meaning of T+1. The SEC notes exceptions, so verify the treatment of your particular instrument rather than applying the stock convention to every asset.

Create a row with the security, buy or sell, quantity, execution price, trade date, settlement date and net amount shown on the confirmation. Use the actual confirmation rather than the date on which you first submitted an order. Record any charges separately so the cash figure reconciles with the document. For an unfilled order, do not invent an executed transaction.

In a hypothetical ordinary week with no relevant holidays, a Monday stock trade normally settles Tuesday. The useful habit is to copy the confirmed settlement date into the worksheet. A business-day convention is not a promise of settlement exactly twenty-four hours after execution. If your calendar and confirmation disagree, leave the difference visible and ask the broker to explain it before relying on either interpretation.

03

Add a funding reference, not just a running total

Next to each purchase, add a funding-source field. It might identify cash already confirmed as settled or the proceeds of a specific earlier sale. Give each transaction a short reference, such as Sale A or Purchase B. The purpose is to connect an obligation to the money intended to satisfy it, rather than treating every positive number on the account screen as the same resource.

For a simple invented example, start with $2,400 of settled cash and no other activity. Purchase 30 shares of fictional Harbor at $60 each, ignoring fees solely for this exercise. The purchase costs $1,800, leaving $600 of the starting settled cash uncommitted. Write the multiplication and subtraction in the worksheet. Do not describe the full $2,400 as still available for a second purchase after assigning $1,800 to the first.

Now set a second planned purchase at $900. The worksheet exposes a $300 funding gap against the remaining starting cash. This is a budgeting comparison, not a ruling about what a particular brokerage system will accept. The next task is to identify and verify another funding source. An anticipated profit on Harbor is not an additional deposit in this example.

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04

Follow a sale-funded purchase through the timeline

FINRA’s June 2026 guidance says a cash-account good faith violation can arise when a security is bought with unsettled sale proceeds and then sold before those funding proceeds settle. Its guidance also confirms T+1 as the current settlement period for most equity trades. The key research task is therefore to follow the funding transaction, not simply count how many trades occurred.

Consider a separate hypothetical account with no settled cash and a fully paid holding called Cedar. On Monday, Cedar is sold for $3,200. Later Monday, the investor buys $3,200 of another fictional stock, Elm, intending to fund it with the Cedar proceeds. Assume both transactions use the ordinary T+1 convention and Tuesday is a relevant business day. Place Cedar’s Tuesday settlement date directly beside Elm’s funding reference.

Before proposing a Monday sale of Elm, examine that connection. The Cedar proceeds have not yet settled under the example’s assumptions. The unresolved issue is how Elm has been fully paid for, not whether its quoted price has risen. Preserve the sequence in the worksheet and obtain the broker’s explanation of the account treatment. Do not treat the appearance of a completed order as confirmation that every later transaction is permissible.

05

Distinguish a payment source from a hoped-for exit

Fidelity’s March 2026 educational guide distinguishes good faith violations from freeriding. It describes freeriding as purchasing securities and using proceeds from selling those same securities to pay for the purchase. The guide also illustrates a cash liquidation problem: selling a different holding too late to provide settled funds when an earlier purchase is due. These are different funding sequences, even when the final arithmetic looks positive.

To test your own worksheet, temporarily hide every future sale you have merely planned. Can you still identify the verified funding for each purchase? If the answer is no, mark the row unresolved. This exercise does not determine a legal classification; it reveals where your explanation depends on a transaction that has not happened or on money whose status you have not checked.

Then restore the planned transactions in a separate scenario column. Label their prices and dates as assumptions. A projected $500 gain may improve a hypothetical ending balance, but it does not document the funding of an earlier obligation. Keeping the scenario outside the historical transaction rows prevents a favorable forecast from silently rewriting what actually occurred.

06

Turn an unclear screen into a specific broker question

Save the confirmation and note the time at which you read the account balances. Copy the displayed labels exactly. If one field suggests funds are available while another shows a pending transaction, do not rename either field to make the numbers agree. Your worksheet should preserve the evidence before interpreting it. Avoid sending account credentials or complete account numbers when requesting ordinary guidance.

A useful question is concrete: “Purchase B is intended to be funded by Sale A. The confirmation gives Sale A this settlement date. Which funds currently pay for Purchase B, and what limitation would apply if I sold B before that date?” Include the relevant transaction references through the broker’s secure support channel. This asks for an explanation of a sequence instead of a general assurance that the account looks fine.

Record the response date, the explanation and any action the broker requests. If the answer changes an assumption, update the worksheet while retaining the original note. The output should let you explain why a transaction is funded, which document supports that conclusion and which uncertainty remains. A copied balance without its label or timestamp is much harder to reconcile later.

07

Use a final reconciliation before closing the worksheet

Review the worksheet in three passes. First, match each historical row to a confirmation and distinguish executed trades from plans. Second, check the arithmetic using the documented net amounts and any charges. Third, trace each purchase to its funding reference and compare the relevant settlement dates. A mismatch belongs in an open-question column, not in a balancing adjustment invented to force the total to work.

For the Harbor exercise, the documented assumptions should reproduce $1,800 of purchase cost, $600 remaining from starting cash and a $300 gap against the additional $900 plan. For the Cedar and Elm exercise, the crucial output is a dated funding link rather than an expected trading gain. These examples are separate accounts; combining them would introduce cash that the second scenario never had.

Finally, write one sentence explaining what would change your conclusion. It could be a corrected confirmation or a broker clarification identifying previously unrecognized settled funds. That makes the worksheet useful when new evidence arrives. The finished result is a traceable account-funding explanation, alongside the separate research needed to decide whether owning the stock makes sense.

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ORIGINAL SOURCES & FURTHER READING
  1. SEC Investor.gov: T+1 settlement investor bulletin ↗
  2. FINRA: Frequent Intraday Trading, June 2026 ↗
  3. Fidelity: Avoiding cash account trading violations, March 2026 ↗

Research and education, not personalized investment advice. Facts and examples should be read in the context of their stated periods. Follow the original disclosures for the complete record.