Investment Taxes

Direct answer: Investment taxes fall into two main categories: capital gains tax on profits from selling assets, and income tax on dividends and interest. The rate depends on whether gains are short-term (held one year or less, taxed as ordinary income) or long-term (held more than one year, taxed at preferential rates of 0%, 15%, or 20%). Dividends qualify for the same lower rates if they meet IRS holding-period requirements; otherwise they are taxed as ordinary income. This section covers both categories in full: how the rates work, how to evaluate tax impact before selling, and the common mistakes that turn avoidable tax bills into permanent losses.

By Swoopr Editorial Team

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About This Section

This section covers investment taxes from two angles: capital gains (how profits from selling assets are taxed) and dividend taxation (how distributions from stocks and funds are taxed). Each topic is covered in a five-part cluster: a definition and context guide, a decision framework, a key alternatives and tradeoffs guide, a risks and failure modes guide, and a worked example with portfolio context.

Tax rules change. All rates and thresholds in these guides reflect the U.S. tax code as of the 2025 tax year. Content in this section does not constitute personalized tax advice; consult a qualified tax professional for guidance specific to your situation.

Every Guide in This Cluster

Ten guides across two investment-tax topics. Each link goes to a complete article covering the topic from definition through worked example.

Frequently Asked Questions

What is the difference between short-term and long-term capital gains tax?

Short-term capital gains apply to assets held one year or less and are taxed at ordinary income tax rates, which can reach 37% for high earners. Long-term capital gains apply to assets held more than one year and are taxed at preferential rates of 0%, 15%, or 20% depending on taxable income. The break-even holding period is exactly one day past the one-year mark, making it the most straightforward tax-planning threshold for investors. High-income taxpayers may also owe the 3.8% net investment income tax on top of either rate.

How are qualified dividends taxed differently from ordinary dividends?

Qualified dividends meet three IRS requirements: they must be paid by a U.S. corporation or a qualifying foreign corporation, the investor must have held the underlying stock for more than 60 days during the 121-day period beginning 60 days before the ex-dividend date, and the dividend must not be specifically excluded from qualification. Dividends that qualify are taxed at the same lower rates as long-term capital gains (0%, 15%, or 20%). Ordinary dividends, including most REIT distributions, bond interest, and dividends that fail the holding-period test, are taxed at ordinary income rates.

What is the wash-sale rule and how does it affect tax-loss harvesting?

The wash-sale rule (IRC Section 1091) disallows a loss deduction when the investor buys a substantially identical security within 30 days before or after the sale that generated the loss. The disallowed loss is not gone permanently: it is added to the cost basis of the replacement position, deferring the tax benefit until that replacement is eventually sold. For tax-loss harvesting to work correctly, investors must wait 31 days before repurchasing the same security, or substitute a similar but not substantially identical fund. The rule applies to stocks, ETFs, options, and mutual funds; it does not apply to cryptocurrency under current IRS guidance.

References

This guide describes the general framework for U.S. investment taxation based on publicly available IRS guidance as of the 2026 tax year. Key sources include:

Tax rates, thresholds, and rules can change. Verify current figures with the IRS or a qualified tax professional before making investment decisions. Nothing on this page is personalized investment, tax, or legal advice.