Glossary term

Form 1099-B - Broker and Barter Exchange Proceeds

Form 1099-B reports proceeds from broker and barter exchange transactions, often from sales of securities.

Updated

May 22, 2026

Read time

2 min read

What Is Form 1099-B?

Form 1099-B, Proceeds From Broker and Barter Exchange Transactions, is an IRS information return used to report certain sales or exchanges handled by brokers and barter exchanges. Investors commonly receive it after selling stocks, bonds, mutual funds, ETFs, options, or other reportable securities.

The form helps taxpayers and the IRS track proceeds, cost basis information when available, holding period, wash sale adjustments, and other details used to report capital gains and losses.

Key Takeaways

  • Form 1099-B reports proceeds from broker and barter exchange transactions.
  • Investors often receive it after selling securities.
  • The form may include cost basis and holding-period information.
  • Taxpayers use it with Form 8949 and Schedule D when reporting capital gains and losses.
  • The taxpayer remains responsible for accurate reporting even if the form is incomplete or wrong.

How Form 1099-B Works

A broker or barter exchange files Form 1099-B with the IRS and sends a copy to the taxpayer. The form may show the date acquired, date sold, proceeds, cost or other basis, whether basis was reported to the IRS, and certain adjustments.

Covered securities generally have basis reporting requirements, while noncovered securities may not. If basis is missing or incorrect, the taxpayer may need records such as trade confirmations, prior statements, transfer documents, or purchase records.

Tax software often imports Form 1099-B data, but imported data should still be reviewed. Wash sales, inherited assets, gifts, employee stock transactions, options, return of capital, and transferred accounts can require adjustments.

Common Form 1099-B Items

Item

What it means

Why it matters

Proceeds

Gross amount from sale or exchange

Starting point for gain or loss

Cost basis

Reported investment cost

Reduces taxable gain

Date acquired/sold

Holding period dates

Short-term vs. long-term treatment

Wash sale adjustment

Disallowed loss amount

Changes reported gain or loss

Limits and Misunderstandings

Form 1099-B does not automatically calculate the correct tax result in every case. Basis can be missing, transferred incorrectly, adjusted by corporate actions, or affected by wash sales and special rules.

It also reports proceeds, not necessarily taxable profit. A sale with high proceeds may produce a small gain or even a loss depending on basis and adjustments.

This entry is educational, not tax advice. Securities tax reporting can depend on account type, basis method, holding period, wash sale rules, and state tax treatment.

The Bottom Line

Form 1099-B is the core broker reporting form for many investment sales. It is useful, but taxpayers should reconcile it with their own records before reporting capital gains and losses.

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