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Most portfolio allocation frameworks suggest a 5–10% allocation to gold. That figure has been produced by various investment banks, pension fund analysts, and academic studies examining gold’s contribution to portfolio risk-adjusted returns over long periods. It is a reasonable starting point - not a rule.
The right allocation depends on your age, tax position, investment time horizon, existing holdings, and what you are trying to achieve by holding gold. This guide walks through the considerations without pushing a number.
What gold actually does in a portfolio
Gold’s role in a portfolio is not to generate returns - it is to hold value during periods when other assets fall. As a portfolio component, its main properties are:
Low correlation with equities. Gold tends not to fall when stock markets fall. During the 2008 financial crisis, gold rose while equities fell 40–50%. During the 2020 COVID crash, gold initially fell briefly but recovered faster than equities. This non-correlation is what makes gold useful as a diversifier.
Currency hedge. When sterling weakens, the GBP gold price rises. UK investors who hold gold in their portfolio are partially hedged against sterling depreciation relative to USD (since gold is priced in dollars globally).
Store of value over long periods. In real (inflation-adjusted) terms, gold has maintained purchasing power over decades. It has not consistently beaten equities in real terms over long periods - equities with dividends reinvested have outperformed in most historical 20–30 year periods.
No yield. Gold produces no income. Holding gold means forgoing the dividends or interest you could earn on equities or bonds. This is the main cost of holding it.
Allocation by life stage
These are general frameworks, not advice.
| Life stage | Typical gold allocation range | Rationale |
|---|---|---|
| Under 35 (long investment horizon) | 5% or less | Long time horizon reduces need for defensive assets. Growth assets (equities) historically outperform. |
| 35–55 (mid-career, accumulation) | 5–10% | Some capital preservation value. Useful against long-term currency depreciation. |
| 55–65 (approaching retirement) | 8–15% | Reducing exposure to equity drawdown. Gold as portfolio stabiliser. |
| Retired or near-retired | 10–20% | Capital preservation priority. Reduced risk tolerance. Currency hedge for sterling spending. |
The highest allocations tend to come from investors who hold a pessimistic view of fiat currency stability or who have specific concerns about systemic risk - inflation, currency crises, or sovereign debt problems. These views are not unreasonable, but they carry their own uncertainty.
The yield cost of holding gold
This is the most honest thing to say about gold allocation, and most gold-centric sources do not say it clearly enough.
A 10% allocation to gold in a portfolio of £100,000 means £10,000 not earning a dividend, rental income, or bond coupon. At a 3% dividend yield on equities, the annual income foregone is £300. Over 20 years, compounded, this cost accumulates meaningfully.
The offsetting benefit - gold’s value if equities fall significantly - is real but unpredictable in timing. You may hold gold for 15 years before the event that justifies it. You may need it in year two.
Whether the insurance value of gold is worth the yield cost is a question each investor must answer based on their specific situation.
For UK investors: tax efficiency changes the calculation
UK investors holding Gold Sovereigns or Britannias face no CGT on gains. This meaningfully changes the portfolio mathematics compared to investors in other countries who pay CGT on all precious metals gains.
A 10% allocation in Sovereigns, growing from £10,000 to £25,000 over 10 years, produces a £15,000 gain with zero UK CGT. The equivalent gain in US equities (or taxable gold) would attract tax.
The CGT-free status does not make gold a better investment on its own merits - it removes a tax drag that would otherwise apply. But it means the after-tax case for physical gold is stronger in the UK than in most other jurisdictions.
Scenarios where a higher allocation makes sense
High equity concentration already. If your wealth is heavily in shares or property, gold’s low correlation adds genuine diversification.
Sterling exposure. If your income and spending are in sterling but you hold significant sterling assets, gold provides some protection against sterling depreciation.
Uncertainty about equity valuations. At high valuations, the expected return from equities falls. The trade-off with gold’s zero yield narrows.
Pension gap. If you are approaching retirement with insufficient pension savings and holding significant equity risk you cannot afford to lose, increasing gold allocation reduces drawdown risk.
Scenarios where a lower allocation makes sense
Long time horizon. Over 30+ years, equities have historically compounded meaningfully faster than gold. Reducing gold allocation in favour of equities has generally been rewarded over very long periods.
High income needs. If you depend on portfolio income, gold’s zero yield is a significant cost.
Already CGT-efficient. If your gold would be held in a taxable product (bars, foreign coins) and you are a higher-rate taxpayer with no CGT planning tools, the tax drag reduces gold’s attractiveness vs an ISA-wrapped equity fund.
Tax and regulation
There are no regulatory requirements or restrictions on how much gold a UK private investor can hold. Gold is not a regulated investment product.
For IHT planning, large gold positions form part of the taxable estate. This should be considered for investors with estates above the nil-rate band threshold. See the IHT guide.
This guide contains factual information only and does not constitute financial or investment advice.
How people usually decide
Investors who think carefully about this typically land somewhere in the 5–10% range - enough to provide genuine crisis-period protection without meaningfully reducing the portfolio’s long-term growth potential.
Very high allocations (25%+) tend to come from investors with strong views about currency instability or systemic financial risk. These views have been well-founded in some historical periods. Whether they apply to the current environment is genuinely uncertain.
The 5% figure is defensible for almost any investor. The question is whether to go higher. See how to buy gold in the UK for a guide to the main purchase options.
Frequently asked questions
Is 10% in gold too much? For most investors, 10% is a reasonable upper range in conventional portfolio frameworks. It provides meaningful crisis protection without excessive drag on long-term returns. Higher allocations are more opinionated views on economic outlook.
Should I hold gold in a SIPP or physically? Different trade-offs. Physical Sovereigns are CGT-free and immediately accessible. Gold in a SIPP gets pension tax relief on contributions but is locked until age 57. The SIPP beats physical for most people solely on the tax relief mathematics, unless you specifically need the accessibility.
Does gold allocation increase or decrease as markets rise? There is no consensus rule. Some investors rebalance - selling gold when it has risen to bring it back to their target allocation. Others hold their gold position as a structural baseline regardless of relative performance.