Capital Gains Tax Guide 2026: Rates, Allowances and How to Report a Gain

Most people encounter capital gains tax at one of three moments in their financial life: when they sell a property that is not their main home, when they sell shares or investments that have gone up in value, or when they are handed a bill from a tax authority they were not expecting. The last scenario is the most common — not because the rules are hidden, but because capital gains tax sits outside the payroll system and therefore outside most people's day-to-day awareness of how tax works.

Unlike income tax, which gets deducted automatically before you receive your wage, capital gains tax is almost never collected at source. You receive the full proceeds of a sale, the money sits in your account, and the tax liability appears later — sometimes much later, depending on when the reporting deadline falls. This gap between receiving money and owing tax on it is where people get into trouble. The funds get spent, the reporting deadline is missed, or the gain simply goes undeclared because it did not feel like income in the usual sense.

This guide covers how capital gains tax works in the USA, UK, Canada, Australia, and Germany. It explains what counts as a capital gain, what rates apply, what exemptions and annual allowances exist, how to calculate the gain correctly, and how to report it. The worked examples throughout use real 2025 figures. Before you sell anything significant — shares, a second property, cryptocurrency, or a business — read this first.

What Is a Capital Gain and What Is Not

A capital gain arises when you sell or dispose of a capital asset for more than you paid for it. The gain is the difference between the proceeds and the cost — and it is the gain, not the full sale proceeds, that is taxed. This distinction matters more than it sounds. Someone who sells shares for $50,000 that they originally bought for $38,000 has a $12,000 gain. The $38,000 is not taxed — it is simply a return of their own money. Only the $12,000 profit is assessed.

The definition of "disposal" is broader than most people assume. A disposal is not just an outright sale — it also includes gifting an asset to someone other than a spouse, exchanging one asset for another (including swapping one cryptocurrency for another), receiving insurance compensation for an asset that is destroyed, and in some jurisdictions, transferring an asset into or out of a trust. In each case, a capital gains calculation is required even if no cash changes hands at market value.

Assets that commonly give rise to capital gains include shares and funds held outside tax-advantaged accounts, second properties and investment properties (but generally not the main family home), business assets including goodwill on the sale of a business, cryptocurrency, collectibles including art and jewellery above a certain value, and foreign currency held as an investment. Assets that are typically not subject to capital gains tax include your primary residence (with some limits), personal possessions below a specific value threshold, vehicles (in most countries), government bonds in certain jurisdictions, and assets held in tax-exempt wrappers such as an ISA in the UK, a TFSA in Canada, a Roth IRA in the USA, or a superannuation fund in Australia.

Capital Gains Tax Rates: USA, UK, Canada, Australia, Germany

The single most important variable in capital gains tax — more important than the rate itself — is how long you held the asset. Most countries apply a preferential rate to gains on assets held for longer than a minimum period, typically one year. Assets sold quickly are taxed at higher rates, often equivalent to ordinary income tax rates. The logic is that longer-term investment is treated as more economically productive than short-term trading, and the tax system reflects this through rate differentiation.

Canada's system is the most misunderstood in this list. Canada has no separate CGT rate — gains are not taxed at a distinct percentage. Instead, a portion of the gain (the "inclusion rate") is added to your regular income and taxed at whatever marginal rate applies to your total income for the year. For most individuals, 50% of a capital gain is included in income and 50% is permanently exempt. For gains above $250,000 in a single year, a 66.67% inclusion rate applies to the excess above that threshold following the June 2024 federal budget changes. The practical tax rate on a capital gain in Canada therefore depends entirely on the taxpayer's other income and marginal rate for that year.

Germany's treatment of real estate versus financial assets is the starkest contrast in this comparison. Sell shares in Germany after holding them for 20 years — you still pay 25% Abgeltungsteuer on the gain. Sell a rental property you have owned for 10 years and one day — you pay nothing. The 10-year Spekulationsfrist (speculation period) for private real estate is one of the most generous CGT exemptions available to investors in any developed economy, and it drives a significant amount of long-term property investment behaviour in Germany.

How to Calculate Your Capital Gain Correctly

The starting point is straightforward: proceeds minus cost equals gain. But both "proceeds" and "cost" have specific definitions in tax law that differ from the face-value numbers, and getting them wrong — in either direction — creates either an overpayment or an underpayment that can trigger an inquiry.

Proceeds are the amount you actually received for the asset, after deducting any selling costs directly incurred in the disposal — estate agent fees, solicitor fees on a property sale, broker commissions, and auction fees. These costs reduce the proceeds figure (or alternatively are added to the cost base, depending on the country's methodology — the end result is the same).

Cost — called the "cost basis" in the USA, "base cost" in the UK, or "cost base" in Australia — is what you originally paid for the asset plus any costs directly associated with acquiring it (purchase commissions, stamp duty, legal fees) plus any capital expenditure that enhanced the asset (a home extension on an investment property, for example). For inherited assets, the cost base is typically the market value at the date of inheritance, not the price the deceased originally paid. For gifted assets, the rules vary significantly by country.

For shares bought at different times and prices, calculating cost basis becomes more complex. Each country has its own methodology for matching sales to specific lots. In the USA, you can generally choose which lot you are selling — FIFO (first in, first out), specific identification, or average cost for mutual funds. Choosing specific identification and selecting the highest-cost lot reduces the gain on each sale and is legal. In the UK, HMRC uses a specific pooling system where all shares of the same class are treated as a single pool with an average cost, with additional rules for shares bought within 30 days of a sale (the "bed and breakfast" rule). Australia also uses a pooling approach but permits specific identification in many cases.

The Main Residence Exemption: When Selling Your Home Is Tax-Free

The sale of a primary residence is exempt from capital gains tax in every country covered here — but the conditions and limits of that exemption differ, and exceeding them produces a tax bill that surprises many homeowners who assumed the exemption was unconditional.

In the USA, the Primary Residence Exclusion allows a single filer to exclude up to $250,000 of gain on the sale of a home, and a married couple filing jointly to exclude up to $500,000. To qualify, you must have owned the home and used it as your primary residence for at least two of the five years immediately preceding the sale. These two years do not need to be consecutive. The exclusion can only be used once every two years. Gains above the threshold are taxable as long-term capital gains if the home was owned for more than 12 months, which is nearly always the case when the exclusion applies.

In the UK, Private Residence Relief (PRR) fully exempts gains on the sale of your main home for periods it was your actual primary residence. The final nine months of ownership always qualify for relief even if you were not living there — allowing people who have moved into a new home before selling the old one to retain the exemption for that overlap period. Where you have let the property or used part of it for business at any point, a proportion of the gain may not qualify for relief. Gains on any element that does not qualify are subject to the 24% rate for higher rate taxpayers.

In Australia, the Main Residence Exemption fully exempts gains on the sale of your primary home. The exemption is lost proportionally if the property was used to produce income at any point during ownership — renting out a room, or using a home office for which business deductions were claimed, both reduce the exemption. A property that was rented out for several years before becoming the primary home will have a taxable portion of any gain calculated based on the ratio of income-producing time to total ownership time.

In Germany, the primary residence is exempt from CGT under the Spekulationsfrist rules regardless of holding period, as long as the seller lived in the property in the year of sale and the two preceding years. An investment property that later became a primary residence requires careful calculation of which periods are covered by the exemption and which are not.

In Canada, the Principal Residence Exemption exempts the full gain on a property designated as your principal residence for each year of ownership. Only one property per family unit (not per person) can be designated for any given tax year — which becomes relevant for families who own a cottage or vacation property alongside their main home.

Crypto, NFTs, and Digital Assets: How Capital Gains Tax Applies

Every major tax authority in the countries covered here treats cryptocurrency as a capital asset, not currency. This has been the established position in the USA since IRS Notice 2014-21, in the UK since HMRC guidance issued in 2018, and similarly in Canada, Australia, and Germany. The capital gains implications are the same as for shares: when you sell, exchange, or spend cryptocurrency, a disposal has occurred, and a gain or loss is calculated from that disposal.

The event that trips people up most often is the exchange of one cryptocurrency for another. Swapping Bitcoin for Ethereum is a disposal of the Bitcoin at its market value on the date of the swap, followed by an acquisition of Ethereum at that same market value. A taxable gain or loss arises on the Bitcoin disposed of, even though no fiat currency was received. Every swap, every purchase using crypto, and every NFT minted from crypto involves a disposal calculation. In the USA, this generates a capital gains event each time. In the UK, the same HMRC pooling rules that apply to shares apply to each specific cryptocurrency held.

Staking rewards, mining income, and airdrops are typically treated as ordinary income in the year received (at market value on date of receipt), with a subsequent capital gain or loss calculated when those coins are eventually sold based on that receipt value as the cost base. The UK, USA, and Australia have all issued specific guidance on staking income. Germany has additional nuance: cryptocurrency held for more than one year is fully exempt from CGT under the same Spekulationsfrist rules that apply to private assets — making long-term holding in Germany significantly more attractive than in any other country in this comparison.

Capital Losses: How to Use Them to Reduce Your Tax Bill

When you sell an asset for less than you paid for it, you have a capital loss. Capital losses are not just an unfortunate outcome — they are a tax planning tool. In every country covered here, capital losses offset capital gains, reducing or eliminating the tax you would otherwise owe in the same year. Understanding how losses work prevents you from leaving a significant deduction unclaimed.

In the USA, capital losses first offset gains of the same type — short-term losses against short-term gains, long-term losses against long-term gains. Any net loss remaining offsets the other type. If total capital losses exceed total capital gains for the year, up to $3,000 of net capital loss can be deducted against ordinary income (wages, freelance income, etc.). Any remaining loss is carried forward to future tax years with no expiry. The carried-forward loss retains its character — long-term remains long-term — and offsets future gains.

In the UK, capital losses in the current year are set against gains before the £3,000 annual exemption is applied. This is important: you cannot choose to save a loss for a future year if you have gains in the current year — losses must be set against current-year gains first. Losses that exceed current-year gains can be carried forward indefinitely and set against future gains. Losses must be claimed within four years of the end of the tax year in which the disposal occurred.

In Australia, capital losses can only offset capital gains — they cannot reduce ordinary income. Net capital losses are carried forward indefinitely. One important rule: when a carried-forward loss is used against a future gain that qualifies for the 50% discount, the loss is applied to the full gain before the 50% discount is calculated, not after. This means a $20,000 carried-forward loss offsets $20,000 of gain, reducing a $30,000 discountable gain to $10,000, which is then halved to $5,000 of assessable income — not applied against the already-discounted $15,000 figure.

How to Report Capital Gains: Country-by-Country Steps

1. USA — Schedule D and Form 8949. All capital gains and losses are reported on Form 8949, which lists each disposal individually with acquisition date, sale date, proceeds, cost basis, and resulting gain or loss. The totals from Form 8949 flow onto Schedule D, which is then attached to your Form 1040. Your broker will issue a Form 1099-B showing proceeds and in many cases the cost basis for shares sold. Always verify broker-reported cost basis figures — they are frequently incorrect, particularly for shares acquired through dividend reinvestment plans or employee stock plans. The net long-term gain from Schedule D determines which long-term CGT rate (0%, 15%, or 20%) applies based on your total taxable income.
2. UK — Capital Gains summary pages in Self Assessment. UK residents report CGT through the Capital Gains Summary pages of their Self Assessment return. Property sales must additionally be reported using the 60-day reporting service — a separate online return filed within 60 days of completion of the disposal, with a preliminary CGT payment due at the same time. This 60-day rule applies from 27 October 2021 and catches many property sellers off guard. Failing to file within 60 days triggers an automatic £100 penalty, with further penalties for extended delay. The Self Assessment return reconciles the 60-day payment against the final liability.
3. Canada — Schedule 3 of the T1 return. Capital gains and losses are reported on Schedule 3 of the T1 personal income tax return. List each disposal separately with the description of property, proceeds, adjusted cost base, and outlays and expenses. The net taxable capital gain (after applying the inclusion rate) is transferred to line 12700 of the T1 main return and added to total income. Capital gains on the sale of a principal residence require Form T2091 to designate the property and claim the exemption.
4. Australia — Capital gains section of the Individual tax return (myTax). Capital gains are reported in the Capital gains section of the myTax online return or paper tax return. You report the total current-year capital gains, prior-year net capital loss offset, discount amount claimed, and net capital gain. The ATO pre-fills share disposal data from broker reports for many listed securities — verify this against your own records before accepting. For property sales, no pre-filling occurs and all calculations are the taxpayer's responsibility. The net capital gain flows into total income and is taxed at marginal rates.
5. Germany — Anlage KAP in the Einkommensteuererklärung. Investment income including capital gains from financial assets is reported on Anlage KAP. For most investors, the flat 25% Abgeltungsteuer is withheld by the German bank or broker at source and the tax obligation is discharged automatically — no separate reporting is required unless you want to apply the Sparer-Pauschbetrag that was not claimed at source, or if your marginal income tax rate is below 25% (in which case you can elect to have the gain taxed at your lower marginal rate instead). For private real estate disposals within the 10-year Spekulationsfrist, gains are reported as sonstige Einkünfte (other income) on Anlage SO and taxed at full marginal income tax rates.

Tax-Efficient Ways to Hold Investments and Reduce Capital Gains

The most effective way to manage capital gains tax is to hold appreciating assets inside tax-exempt wrappers wherever possible. Each country provides at least one account structure specifically designed to shelter investment growth from CGT — and in most cases, these wrappers are significantly underused relative to what is available.

In the USA, a Roth IRA allows investments to grow entirely tax-free, with qualified withdrawals in retirement also tax-free. Contributions are made from after-tax income. There is no capital gains tax on sales within the account at any point. The 2025 contribution limit is $7,000 per year ($8,000 if aged 50 or over). A Traditional IRA or 401(k) defers income tax on contributions and growth until withdrawal — gains within the account are not subject to CGT but withdrawals are taxed as ordinary income. For taxable brokerage accounts, the strategy of holding assets for more than 12 months to access long-term CGT rates, and harvesting losses to offset gains before year-end, reduces effective CGT rates significantly.

In the UK, the Stocks and Shares ISA is the primary CGT shelter. Up to £20,000 per year can be invested, and all growth, dividends, and gains within an ISA are permanently free of income tax and CGT regardless of how long the money stays invested or how much it grows. There is no CGT on disposal of ISA holdings. Assets held outside an ISA can be transferred in (using a bed-and-ISA transaction) — though the transfer is treated as a disposal and may itself generate a gain. The annual £3,000 CGT exemption can absorb small gains from non-ISA holdings.

In Canada, the Tax-Free Savings Account (TFSA) shelters all investment growth and withdrawals from both income tax and CGT permanently. The 2025 contribution limit is $7,000. Unlike an RRSP, TFSA contributions are not deductible but all gains, dividends, and growth are tax-free with no tax on withdrawal. For large investment portfolios, the question of whether to hold growth assets in a TFSA or an RRSP depends on expected marginal tax rates at retirement.

In Australia, superannuation offers the most powerful investment CGT shelter in this comparison. Within a super fund, the CGT rate on assets held for more than 12 months is 10% (not the full individual marginal rate), and assets in the retirement phase of a super fund are entirely exempt from CGT. Voluntary contributions to super are generally taxed at 15% on entry (concessional contributions) but growth within the fund is sheltered from personal marginal rates.

In Germany, the €1,000 Sparer-Pauschbetrag shelters the first €1,000 of investment income (including capital gains from financial assets) per person per year. Beyond this, the 25% flat rate applies without exception for financial assets. The primary planning strategy is the 10-year holding rule for real estate, which creates a powerful incentive for patient property investors to hold through the Spekulationsfrist before selling.

Frequently Asked Questions About Capital Gains Tax

If I give shares to my spouse or partner, do I pay capital gains tax?

In most countries, transfers between spouses or civil partners are treated as occurring at no gain and no loss — meaning CGT is deferred until the receiving spouse eventually sells the asset. In the USA, spousal transfers are generally CGT-free. In the UK, transfers between spouses are at no gain/no loss and the receiving spouse inherits the original cost basis. In Australia, the same principle applies. The practical use of this rule is asset sharing before disposal: transferring appreciated assets to a lower-income spouse allows the gain to be realised at a lower marginal rate or against the other person's unused annual exemption.

Do I pay capital gains tax if I sell shares at a loss?

No — a capital loss does not generate a tax liability. In fact, it creates a tax asset. The loss can be offset against gains in the same year or carried forward to reduce future gains. In the USA, if your total capital losses exceed your gains for the year, up to $3,000 of the net loss reduces your ordinary income. Deliberately selling assets at a loss before year-end to offset realised gains is called tax-loss harvesting and is a legitimate, widely used planning technique. In the UK, losses must be claimed within four years of the tax year of disposal — unclaimed losses expire.

What is the Net Investment Income Tax in the USA?

The Net Investment Income Tax (NIIT) is a 3.8% surtax on investment income — including capital gains — for higher-income US taxpayers. It applies to individuals with modified AGI above $200,000 (single) or $250,000 (married filing jointly). The 3.8% applies to the lesser of net investment income or the amount by which modified AGI exceeds the threshold. In practical terms, higher-income US investors can face a combined federal long-term CGT rate of 23.8% (20% + 3.8%) on gains above the threshold, plus applicable state income tax on top of that. California, for example, taxes capital gains as ordinary income at rates up to 13.3% — making the combined federal and state effective CGT rate for some California residents approach 37%.

How does capital gains tax interact with income tax — does a large gain push me into a higher income tax bracket?

In the USA, long-term capital gains are taxed at separate preferential rates and sit alongside ordinary income rather than being added to it for bracket purposes. However, the size of capital gains does affect which long-term CGT rate tier applies (0%, 15%, or 20%), and the NIIT threshold as described above. A large capital gain in the USA can also trigger phase-outs of certain deductions and credits that are income-tested. In Canada and Australia, capital gains (or a portion of them) are added directly to taxable income, so a large gain can push the taxpayer into a higher marginal rate band for that year. In the UK, capital gains are treated as the top slice of income for rate purposes — your income uses up the basic rate band first, and the CGT rate applied to the gain depends on how much basic rate band remains. This is explained in full in the Tax Brackets Explained guide.

I inherited shares. What is my cost basis?

Inherited assets receive a "stepped-up" cost basis in the USA — the cost basis is reset to the fair market value on the date of death, not what the deceased originally paid. If your parent bought shares for $5,000 that were worth $60,000 at their death and you sell them for $62,000, your taxable gain is $2,000, not $57,000. This step-up is one of the most valuable aspects of the US inheritance regime and significantly reduces CGT on inherited investment portfolios. In the UK, the position is similar — the recipient inherits assets at their probate value, and any subsequent gain is calculated from that value. Note that the estate itself may have paid Inheritance Tax on the value at death — but that is a separate tax from CGT and the two are independent obligations.

Does capital gains tax apply to cryptocurrency?

Yes — in every country covered here, cryptocurrency is treated as a capital asset and every disposal (sale, exchange, or use as payment) triggers a CGT calculation. Germany provides the exception for crypto held for more than one year, which is exempt from CGT under the Spekulationsfrist. The USA, UK, Canada, and Australia apply standard CGT rules — with the USA's short vs long-term distinction, the UK's pooling rules, Australia's 50% discount for assets held 12+ months, and Canada's inclusion rate all applying to crypto gains in the same way they apply to share gains. See the dedicated section above on crypto and digital assets for record-keeping guidance.