Form 1099-B Tax Year 2023 Filing Checklist
Year-Specific Context
Form 1099-B for tax year 2023 reports broker and barter exchange proceeds under rules applicable to tax year 2023 transactions. No stimulus reconciliation, Affordable Care Act shared responsibility payments, or American Rescue Plan Act expansions apply to Form 1099-B reporting.
Tax Cuts and Jobs Act rules governing capital gain treatment, wash sale disallowance, and basis reporting remain in effect for 2023. No material redesigns or line restructuring occurred for this form in 2023 versus 2022, maintaining consistency in reporting requirements and box designations.
Barter exchange reportable transactions for 2023 are reported in Box 14 at fair market value. Regulated futures contracts, foreign currency contracts, and Section 1256 option contracts closed during 2023 are reported in boxes 10 through 13 and must be carried to Form 6781, not Schedule D, for special tax treatment under Internal Revenue Code Section 1256.
Ten-Step Compliance Checklist
Step 1: Verify Receipt and Accuracy
Obtain Copy B from your broker or barter exchange by the February 15, 2024, deadline. Confirm your name, taxpayer identification number, mailing address, and account number match your records. Copy B shows only the last four digits of your identification number for privacy protection, though your complete number appears on Copy A filed with the IRS.
If any information is incorrect, request a corrected Form 1099-B from the payer before filing your 2023 return. Verify the FATCA filing requirement checkbox if marked, as you may have a separate filing requirement under Chapter 4 requiring Form 8938 for 2023.
Step 2: Gather Supporting Documents
Collect all brokerage statements for 2023 showing trade dates, acquisition dates, proceeds, and cost basis for each transaction listed on Form 1099-B. For non-covered securities, including stock purchased before 2011, most mutual fund shares purchased before 2012, debt acquired before 2014, or options granted or acquired before 2014, obtain records confirming the security type. When Box 5 is checked, indicating a non-covered status, basis reporting to the IRS may not apply, and you must determine the basis from your own records.
Retain documentation for any barter exchange transactions showing the fair market value of property, services, or trade credits received during 2023.
Step 3: Identify Transaction Classification
Review the applicable checkbox in the Form 8949 notation on your Copy B. Determine whether each transaction is a short-term gain or loss for securities held one year or less, or a long-term gain or loss for securities held more than one year. For 2023, transactions involving collectibles are marked with the code C in Box 1f. Collectibles are subject to a maximum 28 percent tax rate under Internal Revenue Code Section 1(h).
Check Box 8 for the Qualified Opportunity Fund checkbox indicating special treatment under Internal Revenue Code Section 1400Z-2. Confirm whether the ordinary income box in Box 2 is checked, which means the gain may be taxed as ordinary income rather than a capital gain, per Publication 550 or Publication 1212 rules for 2023.
Step 4: Address Wash Sale Losses
Review Box 1g for amounts disallowed due to wash sales for the 2023 tax year. If Box 1g shows a disallowed amount, you cannot deduct that loss on your tax return. A wash sale occurs when you sell a security at a loss and then purchase the same or substantially identical security within 30 days before or after the sale. Add the disallowed loss to the basis of the replacement security, as per the 2023 Schedule D and Form 8949 instructions.
Obtain your broker’s statement showing which subsequent purchases are identified as replacement securities. Brokers identify wash sales within a single account but cannot track them across multiple accounts or between different brokers, requiring you to review all trading activity.
Step 5: Verify Basis Reporting
For covered securities with Box 5 unchecked, your broker reports the cost or adjusted basis in Box 1e to the IRS and confirms the transaction classification as short-term or long-term in Box 2. The Schedule D instructions identify specific situations where you may report certain transactions directly on Schedule D without Form 8949, though most taxpayers must use Form 8949 for detailed reporting.
For non-covered securities with Box 5 checked, Box 1e may be blank, and you must report the cost basis yourself on Form 8949 using your purchase records. Maintain comprehensive documentation, including purchase confirmations, account statements, and records of all corporate actions that affect the basis.
Step 6: Report Backup Withholding
Check Box 4 for federal backup withholding. Backup withholding typically occurs at a 24 percent rate in 2023 when you fail to furnish a valid taxpayer identification number to the payer. Include any Box 4 amount as federal income tax withheld on your 2023 Form 1040. Report backup withholding on the appropriate line for federal tax withheld.
Do not attach Copy B of Form 1099-B to your return. Keep Copy B with your records. The IRS receives Copy A directly from the broker.
Step 7: Report Section 1256 Contracts
Review boxes 10 through 13 if you held regulated futures contracts, foreign currency contracts, or Section 1256 option contracts during 2023. Do not report these amounts on Form 8949 or Schedule D. Box 10 shows profit or loss realized on contracts closed in 2023. Box 11 shows the year-end adjustment for contracts that were open on December 31, 2022.
Box 12 shows unrealized profit or loss on contracts still open on December 31, 2023. Box 13 shows the aggregate profit or loss calculated from boxes 10, 11, and 12. Carry the Box 13 total to Form 6781 for the 2023 tax year. These contracts receive special tax treatment under Internal Revenue Code Section 1256, with 60 percent classified as long-term and 40 percent as short-term, regardless of the actual holding period.
Step 8: Report Barter Exchange Transactions
Check Box 14 for proceeds from barter exchanges. When Box 14 shows an amount, it indicates that you received cash, the fair market value of property or services, or the fair market value of trade credits or scrip credited to your account. All amounts in Box 14 are treated as ordinary income for 2023, as per Publication 525.
Include Box 14 proceeds on Schedule 1 of Form 1040 on the line for other income, unless the transaction qualifies for a specific exclusion under the 2023 tax law. Bartering income is taxable even when no cash changes hands.
Step 9: Complete Form 8949 and Schedule D
Transcribe all transactions from Form 1099-B, except those in boxes 10 through 13, to Form 8949. Match the applicable Form 8949 checkbox indicated on your Copy B. Part I of Form 8949 reports short-term transactions using checkboxes A, B, or C. Part II reports long-term transactions using checkboxes D, E, or F.
For each transaction, enter the description from Box 1a, acquisition date from Box 1b or your records, sale date from Box 1c, proceeds from Box 1d, cost basis from Box 1e or your records, and any adjustments from boxes 1f or 1g.
Aggregate short-term gains and losses in Part I. Aggregate long-term gains and losses in Part II. Transfer totals from Form 8949 to Schedule D, Part I for short-term and Part II for long-term transactions for 2023. Do not report noncovered securities with Box 5 checked using the broker’s basis if not provided. Report your own basis from purchase records.
Step 10: File Complete Return
Prepare Form 8949 and Schedule D, reporting all capital transactions. Prepare Form 6781 for regulated futures, foreign currency, and Section 1256 option contracts. Do not attach Copy B of Form 1099-B to your Form 1040. Keep Copy B with your tax records for at least three years.
Sign and date your Form 1040 according to the 2023 instructions. File your complete return by April 15, 2024, or request an extension before that date. Consult the IRS "Where to File" page to find the correct mailing addresses based on your state and filing status.
Key Form Features for 2023
Basis Adjustments for Options
For securities acquired through the exercise of non-compensatory options granted or acquired on or after January 1, 2014, a basis adjustment for the option premium is mandatory. Brokers must include the option premium in the basis reported in Box 1e. For non-compensatory options granted or acquired before January 1, 2014, basis adjustment remains permitted but not required.
Brokers may adjust the basis for option premiums paid on older options, but they have discretion. Compensatory options do not include option-related amounts in the basis because those amounts are already reported as compensation on Form W-2.
Section 1256 Contract Treatment
Section 1256 contracts reported in boxes 10 through 13 receive special tax treatment. These contracts include regulated futures contracts, foreign currency contracts, and specific options. The aggregate profit or loss shown in Box 13 must be reported on Form 6781, where it receives an automatic 60 percent long-term and 40 percent short-term classification regardless of how long you actually held the contracts. This favorable tax treatment applies under Internal Revenue Code Section 1256 and differs significantly from standard capital gain holding period rules.
Collectibles and Qualified Opportunity Funds
Collectibles are identified by code C in Box 1f. When this code appears, the transaction involves art, antiques, stamps, coins, precious metals, or other collectibles subject to a maximum 28 percent long-term capital gains rate under Internal Revenue Code Section 1(h). This rate is higher than the preferential rates applied to most long-term capital gains.
A checkbox in Box 8 identifies Qualified Opportunity Fund investments. These investments may qualify for deferral of gain recognition and basis step-up under Internal Revenue Code Section 1400Z-2, providing significant tax benefits for qualified investments in designated opportunity zones.
Noncovered Security Obligations
When Box 5 is checked, indicating non-covered securities, the broker is not required to report the basis in Box 1e, codes in Box 1f, wash sale adjustments in Box 1g, or holding period classification in Box 2. You bear full responsibility for determining and reporting on an accurate basis the holding period and character of gain or loss.
Maintain comprehensive purchase documentation, including confirmation statements, monthly account statements showing acquisition dates and amounts paid, and records of all corporate actions such as stock splits, mergers, and dividend reinvestments that affect basis calculations.
This checklist provides comprehensive guidance for accurately reporting 2023 Form 1099-B transactions, ensuring compliance with IRS requirements and proper treatment of capital gains, losses, and derivative contracts under current tax law.
Need Help With Your Tax Filing?
If you’re missing tax documents or want to ensure the numbers you enter match IRS records, we can help.
We offer:
● Full IRS transcript retrieval (Wage & Income + Account)
● Professional tax form review
● Preparation & filing support
● Tax relief options if you owe the IRS
Call now before filing: (888) 260-9441
Fast transcript pull available
This checklist is for educational purposes only and does not constitute tax or legal advice. Always review official IRS instructions and consult a qualified professional for guidance.
