Capital Gains Tax — What Is It?

Quick Answer

Capital gains tax is a levy on profits from selling investments — stocks, bonds, funds, real estate, and other assets. It applies to gains such as stock and ETF sales, dividends, bond interest, fund distributions, and crypto sales, with the rate varying by country, holding period, and income level. The US distinguishes short-term (up to 37%) from long-term rates (0%, 15%, or 20%); the UK and Canada use their own brackets and allowances. It matters because it directly reduces net investment returns, and tax-advantaged accounts, loss harvesting, and long-term holding can legally lower the burden. This is educational information, not tax advice.

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What is Capital Gains Tax?

Capital gains tax is a levy on profits from selling investments — stocks, bonds, funds, real estate, and other assets. The tax rate varies by country, holding period, and sometimes income level.

What's Subject to Capital Gains Tax?

• Stock and ETF sales — difference between sale and purchase price
• Dividends — often taxed as ordinary income or at special rates
• Bond interest — may be taxed as ordinary income
• Mutual fund distributions — capital gains and dividend distributions
• Cryptocurrency sales — treated as property in most jurisdictions

Capital Gains Tax in Major Countries

United States

• Short-term (≤1 year): Ordinary income tax rates (up to 37%)
• Long-term (>1 year): 0%, 15%, or 20% depending on income
• Tax-advantaged accounts: 401(k), IRA, Roth IRA defer or eliminate taxes

United Kingdom

• Basic rate: 10% (18% for property)
• Higher rate: 20% (28% for property)
• Annual allowance: £6,000 tax-free (2023/24)
• ISA: £20,000 annual limit, tax-free growth

Canada

• Inclusion rate: 50% of capital gains count as taxable income
• Effective rate: Depends on marginal tax rate (varies by province)
• Principal residence: Exempt from capital gains tax

How to Minimize Capital Gains Tax

1. Use Tax-Advantaged Accounts

• 401(k)/IRA (US): Tax-deferred growth
• Roth IRA (US): Tax-free withdrawals in retirement
• ISA (UK): Tax-free growth and withdrawals
• TFSA (Canada): Tax-free savings account

2. Tax Loss Harvesting

Sell losing investments to offset gains. In US, up to $3,000 excess losses can offset ordinary income, with remainder carried forward.

3. Hold for Long-Term Rates

Many countries offer preferential rates for long-term holdings (typically >1 year).

4. Donate Appreciated Assets

Donate directly to charity instead of selling — avoid capital gains and get charitable deduction.

5. Time Your Sales

Spread sales across tax years to stay in lower tax brackets or use annual allowances.

International Tax Treaties

Many countries have tax treaties preventing double taxation. However, US citizens abroad often face complex reporting requirements regardless of residence.

How Freenance can help

Freenance tracks portfolio gains and losses, making tax planning easier. You can see which positions are profitable or at a loss, helping make informed decisions about tax loss harvesting and timing of sales.

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FAQ

What is the capital gains tax rate in Poland?

In Poland, capital gains from securities, derivatives, and most investment instruments are taxed at a flat 19% rate, commonly called "Belka tax". The tax applies to net gains (proceeds minus cost basis and eligible expenses) and is settled annually via the PIT-38 form.

Does Poland reward long-term holding with lower rates?

No. Unlike the US or UK, Poland applies the same 19% rate regardless of holding period for shares, ETFs, and bonds in a regular brokerage account. Preferential treatment is available only through tax-advantaged accounts like IKE and IKZE, subject to statutory conditions.

How is cost basis calculated for the same security bought at different prices?

Polish brokers generally apply the FIFO (First In, First Out) method — the earliest purchased lots are considered sold first. This convention determines the cost basis and therefore the taxable gain or loss on each sale.

Can losses offset gains in Poland?

Yes. Capital losses can offset capital gains from the same source category, and unused losses can typically be carried forward for up to 5 consecutive tax years, with a limit of 50% of the loss deducted per year (or the full amount up to PLN 5,000). Always confirm current rules with a tax advisor.

Is this article tax advice?

No. This content is educational and based on general rules as of 2026. Tax law changes frequently and individual situations differ. For personal decisions, consult a licensed tax advisor or doradca podatkowy.