Investment Income & Stock Sales
Having accounts at several brokerage firms does not automatically make your tax return complicated. But when those accounts contain stock sales, investment income, transferred securities, wash sales, missing cost basis, or employee stock compensation, preparing the return can require more than simply entering a few year-end totals.
The goal is to make sure the tax information from each brokerage account is complete and that transactions requiring additional attention are properly reflected on your individual income tax return.
Are Multiple Brokerage Accounts a Tax Problem?
Usually, no. There is nothing unusual about maintaining investment accounts at more than one brokerage firm.
What matters for tax preparation is the activity inside those accounts. Three brokerage accounts containing ordinary investments and a modest number of properly reported transactions may be straightforward. A single account containing hundreds of transactions, missing basis, stock compensation, or other adjustments can be considerably more involved.
What Tax Documents Do Brokerage Accounts Produce?
Brokerage firms commonly provide a consolidated tax statement containing several different tax forms. Depending on your investments and activity, your brokerage package may include:
Form 1099-B
Reports sales of stocks and other securities, including proceeds and, when applicable, cost basis and other transaction information.
Form 1099-DIV
Reports dividends, including qualified dividends, capital gain distributions, and certain other distributions.
Form 1099-INT
Reports taxable and certain tax-exempt interest received through the brokerage account.
Supplemental Statements
Brokerage packages can contain additional information needed to understand adjustments, investment expenses, foreign taxes, transaction details, and other items.
What Can Make Multiple Brokerage Accounts More Complicated?
The number of accounts is only one part of the picture. These issues can require additional review when preparing the individual return.
Some securities may not have basis reported to the IRS, requiring basis to be established from other records.
Selling an investment at a loss and acquiring substantially identical securities within the wash-sale period can affect the deductible loss and basis.
Securities transferred between brokerage firms can create questions when acquisition dates or historical basis information do not transfer cleanly.
RSUs, ESPPs, and stock options can require coordination between brokerage reporting and compensation already reported through payroll.
Hundreds or thousands of sales can require more reconciliation than a small number of ordinary investment transactions.
Options, publicly traded partnerships, foreign investments, and other specialized holdings can introduce additional reporting.
Cost Basis Is One of the Most Important Numbers
When an investment is sold, calculating the gain or loss generally requires both the proceeds from the sale and the investment's adjusted cost basis.
For many covered securities, the broker reports basis information on Form 1099-B. But not every investment is a covered security, and brokerage statements can sometimes show transactions for which basis was not reported to the IRS.
When basis is missing, additional records may be needed to determine the correct gain or loss rather than assuming that the investment had zero cost.
Covered vs. Noncovered Securities
A covered security is generally one for which the broker is required to report applicable cost-basis information to the IRS. Many stocks acquired after the cost-basis reporting rules took effect fall into this category.
For a noncovered security, basis may not have been reported to the IRS. The taxpayer still needs to determine and report the correct basis when the investment is sold.
Wash Sales Can Cross Brokerage Accounts
A wash sale can occur when securities are sold at a loss and substantially identical stock or securities are acquired within the applicable period around the sale.
Brokerage reporting does not necessarily identify every wash sale that can exist across all of your accounts. A broker's required Form 1099-B reporting is generally focused on specified transactions involving securities within the same account.
If you sell an investment at a loss in one brokerage account and purchase substantially identical securities through another account, the transaction may therefore require additional review even when neither year-end statement clearly identifies the cross-account issue.
Brokerage Accounts Containing RSUs, ESPPs or Stock Options
Employee stock compensation deserves particular attention because some income associated with the shares may already have been included in your wages.
When those shares are later sold through a brokerage account, reviewing the transaction history and available stock-plan information can help determine whether the basis shown on the brokerage statement properly reflects the relevant compensation and acquisition information.
How Stock Sales Reach Your Individual Tax Return
Sales of capital assets are generally reported through Form 8949 and Schedule D when those forms are required. Transactions are categorized based on factors such as holding period and whether basis was reported to the IRS.
Adjustments may also be required when information reported by the broker does not produce the correct tax result. This is one reason the complete brokerage statement can be more useful than providing only a summary of total proceeds and gains.
Multiple Accounts Do Not Automatically Mean a Complex Return
TaxReturn.cpa does not treat the mere existence of several ordinary brokerage accounts as a reason by itself to make a return more complicated.
What matters is the underlying activity: transaction volume, basis information, adjustments, wash sales, stock compensation, specialized investments, and other facts that affect the work required to prepare the return correctly.
What Should You Provide?
Provide the complete year-end tax package from each brokerage firm, including all pages and supplemental statements.
If a statement shows missing basis, transferred securities, or other transactions requiring additional information, historical brokerage statements, trade confirmations, or other records may also be necessary.
For employer stock plans, provide relevant stock-plan statements and transaction information in addition to your Form W-2 and brokerage tax documents.
Common Issues We Look For
Missing Basis
Sales reported without basis may require additional records before the gain or loss can be determined.
Cross-Account Wash Sales
Activity across different accounts can create issues that may not be apparent from reviewing each brokerage statement in isolation.
Transferred Investments
Moving securities between brokers can sometimes result in incomplete historical basis or acquisition information.
Stock Compensation
Employer stock transactions may require coordination between the W-2, stock-plan records, and brokerage reporting.
Corrected Statements
Brokerage firms sometimes issue corrected consolidated tax statements, particularly when investment information changes after the original statement was produced.
Large Capital Gains
Significant investment gains can affect the overall tax calculation and may interact with estimated taxes and other tax provisions.
Related Investment Tax Resources
Frequently Asked Questions
Is it a problem to have several brokerage accounts?
No. Multiple brokerage accounts are common. The tax complexity depends more on the investments and transactions inside the accounts than on the number of brokerage firms you use.
Do I need to provide every page of my brokerage statement?
Yes. Provide the complete consolidated tax statement and supplemental pages from each brokerage firm. Information needed for the return can appear outside the summary pages.
What if my brokerage statement does not show cost basis?
Additional records may be needed to establish the correct basis. Missing basis should not automatically be treated as zero merely because it does not appear on Form 1099-B.
Can a wash sale involve two different brokerage accounts?
Yes. Transactions involving substantially identical securities in different accounts can require wash-sale consideration even when a broker does not identify the cross-account transaction on Form 1099-B.
Do multiple brokerage accounts automatically require your highest preparation level?
No. Several ordinary brokerage accounts can still be relatively straightforward. The appropriate preparation level depends on the actual investment activity and other items on the return.
Have Multiple Brokerage Accounts or Investment Sales?
TaxReturn.cpa provides CPA-led individual tax preparation for returns involving investment income, stock sales, RSUs and other stock compensation, K-1s, business ownership, rental property, and other areas of tax complexity. See your preparation price and current production availability online.
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