Capital Gain
Quick Answer
A capital gain is the increase in value realised when a capital asset is sold or otherwise disposed of for more than its relevant cost or adjusted basis. Capital gains can arise from assets such as shares, bonds, property or other investments, although the legal and tax treatment varies by jurisdiction and asset type.
How does a Capital Gain work?
A capital gain generally arises when the amount received from disposing of an asset exceeds the amount used as its relevant cost basis.
A simplified calculation is:
Capital Gain = Sale Proceeds − Cost Basis
Suppose an investor buys an asset for:
$5,000
and later sells it for:
$6,500
The simplified capital gain is:
$6,500 − $5,000 = $1,500
In practice, the calculation can be more complex because the asset's adjusted basis may include or exclude certain costs or adjustments.
For example, the IRS notes that the basis of stocks and bonds generally includes the purchase price plus certain acquisition costs such as commissions or transfer fees.
Key features of a Capital Gain
Several concepts are important:
Gain results from an increase in value: The disposal value exceeds the relevant basis.
Realisation usually matters: A rise in value while an asset is still held is normally described as an unrealised gain rather than a realised capital gain.
Cost basis matters: The original purchase price may need to be adjusted for relevant costs or other events.
Capital losses are the opposite: A capital loss occurs when an asset is disposed of for less than its relevant basis.
Holding periods may matter for taxation: Some jurisdictions distinguish between short-term and long-term capital gains.
Tax treatment varies: Capital-gains rules depend on the country, taxpayer, instrument and circumstances.
For example, U.S. tax rules generally distinguish capital gains as short-term or long-term according to the holding period, but those rules should not be assumed to apply globally.
Simple Capital Gain example
Suppose an investor buys:
100 shares at $40 per share
Initial investment:
100 × $40 = $4,000
Later, the shares are sold at:
$52 per share
Sale proceeds:
100 × $52 = $5,200
Ignoring fees, taxes and other adjustments:
Capital Gain = $5,200 − $4,000
Capital Gain = $1,200
The percentage gain based on the original investment is:
$1,200 ÷ $4,000 × 100 = 30%
If the shares had risen to $52 but had not yet been sold, the $1,200 increase would commonly be described as an unrealised gain rather than a realised capital gain.
This example is illustrative only and does not represent actual FxGrow instruments, prices, tax treatment or investment returns.
Potential benefits and uses
Capital gain is an important concept when evaluating investment performance.
It may be used to:
measure gains from asset disposals;
compare purchase and sale values;
calculate investment returns;
distinguish realised from unrealised performance;
calculate net capital gains or losses where applicable;
assess potential tax consequences under relevant local rules.
Capital gains should also be considered separately from other forms of investment return.
For example, a shareholder may receive:
capital appreciation from an increase in share price; and
dividend income from distributions made by the company.
Both can contribute to total investment return, but they are different concepts.
Risks, limitations and common misconceptions
A common misconception is that any increase in an asset's market price is automatically a realised capital gain.
It is not.
If an asset rises from $50 to $70 while it remains owned, the holder has an unrealised gain of $20 per unit. The gain generally becomes realised when the asset is sold or otherwise disposed of, subject to the rules applying to that asset and jurisdiction.
Another misconception is that:
Capital Gain = Selling Price − Original Purchase Price
is always the complete calculation.
The relevant calculation may use an adjusted basis, which can differ from the original purchase price because of transaction costs, improvements, corporate actions, depreciation or other applicable adjustments.
Capital gain should also not be confused with income generally. Depending on the jurisdiction, capital gains, interest, dividends, business income and trading income may be classified or taxed differently.
Finally, there is no single global capital-gains tax rule. Rates, exemptions, holding-period rules and classifications can differ substantially between countries and taxpayer circumstances. This glossary entry therefore explains the financial concept rather than providing tax advice.