Moving brokers: reconcile shares, cash and acquisition records

A completed transfer needs more than a matching total

After moving a US stock account to a new brokerage, seeing familiar tickers on the screen is reassuring. It does not answer every reconciliation question. Check the securities delivered, cash movements and acquisition records separately before treating the migration as finished. This article provides a manual worksheet for an ordinary brokerage transfer; it does not select a broker or determine the tax consequences of a particular transaction.

The central question is practical: can you explain every position and balance using dated records from both firms? A total account value is a weak starting point because prices may change between screenshots. A share count tied to an identified security, a documented cash entry and a supported acquisition record give you more useful evidence. Keep those checks separate so that one completed item does not conceal another unresolved item.

Define what is actually moving

DTCC describes ACATS as a service that automates and standardizes transfers between participating financial institutions. Its supported assets include equities and cash. That infrastructure description is not a promise that every holding will be accepted by your chosen destination.

The SEC's transfer bulletin advises initiating the request with the receiving firm, using information that matches the existing account, and asking about fees, restrictions and assets that cannot move. It identifies fractional shares among the assets that may be nontransferable. Its practical implication is to obtain a holding-by-holding answer before submission instead of discovering exceptions afterward.

Create a transfer instruction summary in your own records. State whether you requested the entire account or selected positions, identify both accounts, and list the intended securities and quantities. Keep the firm's acknowledgement beside that summary. If a representative changes the proposed treatment of a holding, record the new instruction and its confirmation. A conversation about what might happen is different evidence from an accepted instruction.

Build the departure snapshot

Before starting, save a dated position list, recent statements, transaction history and available acquisition records. Use the documents as a baseline rather than relying on memory of the portfolio. For each holding, your worksheet can contain the security identifier, share class, quantity, expected destination and an exception column. Keep account identifiers in your private records rather than a public research note.

Record cash separately, including its currency. Add a short list of transactions or payments that you expect to investigate during the move. This is an organizational step, not a forecast that every pending item will arrive on a particular day. Ask the firms how they will handle your specific account and retain the answer.

The SEC also recommends comparing the new firm's first statement with the old firm's last statement. For an active account, supplement that comparison with intervening transactions. Otherwise, a legitimate transaction between the two statement dates could look like an unexplained transfer discrepancy. Use consistent cutoffs and retain the original documents even after your worksheet is reconciled.

Reconcile quantities before market values

Consider a hypothetical investor moving 120 shares of one US company and $800 in cash. The departure screenshot uses a $50 share price, producing $6,000 of stock value and a $6,800 total. At the destination, the same 120 shares are shown at $52, producing $6,240 of stock value. With unchanged cash, the total is $7,040.

The $240 difference equals 120 multiplied by the $2 price change. It does not represent additional shares delivered or an unexplained cash credit. This example deliberately assumes no fees, trades, distributions or other adjustments. Real records need those entries added separately.

Reverse the problem to test your method. If only 119 shares arrive, a higher market price might still produce a reassuring account total. The worksheet should flag the missing share regardless of the displayed value. Ask whether it is pending, excluded by instruction, or genuinely unreconciled. Do not label it lost without evidence, and do not mark it resolved because the market value increased.

Track residual cash as a separate open item

FINRA Rule 11870 addresses residual credit positions after a whole-account transfer. Where the relevant automated capability exists, paragraph (m)(3) requires its use for residual cash and securities. Paragraph (n)(2) separately requires transfer of credit balances arising during at least six months after a whole-account transfer, within ten business days after those balances accrue. These provisions concern the specified whole-account circumstances; they do not establish one universal timeline for every partial or unusual transfer.

For your worksheet, give each expected follow-up item its own row: description, amount if known, evidence, firm contacted and current status. Do not combine an expected credit with cash already received. An expectation supported by a document is still different from a posted transaction.

If a cash difference remains, ask the firms to identify the actual debit or credit rather than supplying your own explanation. A fee should have a fee record; a payment should have a payment entry. Once an item posts, attach that record and update the row. Preserve the investigation trail so that a later statement can be checked without restarting the entire exercise.

Check acquisition records independently

The IRS's 2026 Form 1099-B instructions describe a separate transfer statement for specified securities, generally due to the receiving broker within 15 days after transfer settlement. The required information includes security identification, units, adjusted basis and original acquisition date, with exceptions including reduced information requirements for noncovered securities. These are reporting instructions with defined scope and exceptions, not a guarantee about when a brokerage app will display a completed cost-basis screen.

For a hypothetical record check, suppose the 120 shares consist of 70 shares acquired at $40 and 50 at $55. Assume no commissions or basis adjustments. The two lots have costs of $2,800 and $2,750, totaling $5,550. If the receiving records show only the first lot, matching the 120-share position does not resolve the missing acquisition detail.

Compare the underlying lot records and request clarification from the receiving firm. Avoid replacing missing information with the market price on arrival merely to fill an empty field. The example is a simplified arithmetic exercise, not a calculation of your actual tax basis. Gifts, inherited positions, adjustments and noncovered holdings require their applicable records and treatment.

Use an exception log to decide when you are done

A useful exception log answers four questions: what differs, which document supports the expected result, who is investigating, and what evidence will close the item? Give each discrepancy a reference number from your own worksheet. When contacting a firm, describe the specific security, quantity or cash entry and the dates being compared through its secure channel.

For example, write that a particular lot is absent from the destination's acquisition history while the total position quantity matches. That description directs attention to the record problem without claiming the assets themselves failed to arrive. For a cash issue, identify the expected entry and the latest statement that still lacks it. Precision makes follow-up more useful than asking only whether the transfer is complete.

Your completion decision should rest on reconciled positions, explained cash differences and adequate acquisition records, with any remaining exceptions explicitly documented. If one part is unresolved, keep it open and obtain a concrete next step. A transfer status label is helpful operational information; your own evidence log should show what was actually checked and when.

Keep revisions visible: preserve the original entry, add the correction, and identify the document that justified it. If the two firms give conflicting explanations, send each the same dated discrepancy summary and ask them to reconcile the difference. Do not solve a disagreement by silently changing your expected quantity. This small discipline makes it possible to distinguish a corrected instruction from a corrected delivery and to explain the final result months later.