UK Capital Gains Gold Guide for Bullion Buyers

A profitable bullion sale is not always a taxable one. This UK capital gains gold guide explains the distinction that matters most to private investors: some recognised gold coins can be exempt from Capital Gains Tax (CGT), while gold bars and many overseas coins may create a taxable gain when sold.

For UK residents, the tax position should be part of the buying decision, not an afterthought at the point of sale. The right product still depends on your budget, premium, investment timeframe and resale plans, but CGT treatment can make a meaningful difference to the net proceeds you keep.

When does CGT apply to physical gold?

CGT may apply when you dispose of an asset for more than its allowable cost. A disposal does not only mean selling gold for cash. It can also include giving bullion away, exchanging it for another asset or using it to settle a debt.

For taxable gold, the basic calculation is straightforward: take the sale proceeds and deduct what you paid to acquire the item, along with eligible buying and selling costs. The result is your gain or loss. A dealer invoice, delivery charge and any separately stated selling commission can all be relevant evidence, so retain the paperwork from day one.

The tax is charged on your total taxable gains for the tax year, after allowable losses and the annual CGT exempt amount have been considered. The annual exempt amount is currently £3,000 for an individual, but tax allowances and rates can change. For non-residential assets, gains above the available allowance are generally taxed at 18% for the part falling within your unused basic rate band and 24% above it.

Your wider income matters. Two investors can make the same gain on a gold bar and pay different amounts of CGT because their taxable income puts them in different bands. This is why a large disposal near the end of a tax year deserves planning rather than a rushed decision.

UK legal tender coins and CGT exemption

The most widely used CGT planning route for physical bullion is to buy qualifying UK legal tender coins. Gold Britannias and gold Sovereigns are common examples. As sterling legal tender, they are generally exempt from CGT for UK individuals.

That exemption applies to the gain itself. If the gold price rises significantly between purchase and sale, a qualifying UK legal tender coin can normally be sold without CGT being due. It is one reason these coins are popular with investors who expect to build a position over several years.

This does not mean every coin containing gold is CGT-exempt. A South African Krugerrand, American Eagle and Canadian Maple Leaf are recognised, liquid bullion coins, but they are not UK sterling legal tender. Their gains can therefore be taxable for a UK investor. They may still be the right purchase where availability, premium or collection preference is the priority, but the difference should be understood before you buy.

Check the exact product rather than relying on its appearance or country of origin. A modern bullion Britannia and a commemorative coin can have different pricing characteristics, and older coins can carry collector value that changes the investment case. Product specifications and a clear purchase invoice are your starting point.

Sovereigns and Britannias are not identical investments

Both are practical choices for investors seeking CGT-exempt UK gold, but they serve slightly different needs. A full Sovereign contains 7.32g of fine gold, while a one-ounce Britannia contains 31.1035g. Sovereigns allow smaller, more flexible sales; Britannias usually offer a lower premium per gram at the one-ounce size.

The better option depends on how you expect to sell. If you may want to release a few thousand pounds at a time, several smaller coins can give greater control. If you are investing a larger sum and want to keep premiums tight, one-ounce coins may be more efficient. In either case, buy recognised products in good condition from a specialist dealer and keep every invoice.

Gold bars and taxable gains

Investment-grade gold bars are normally subject to CGT when sold at a gain. Their attraction is clear: larger bars can offer a low premium over the live gold price, and they are an efficient way to hold substantial value in a compact form. The trade-off is that they do not have the same CGT exemption as qualifying UK legal tender coins.

A gold bar is not automatically a poor choice because it may be taxable. The saving on premium can outweigh tax considerations for some buyers, particularly where the holding period is shorter, the anticipated gain is modest, or a buyer has unused losses or annual allowance. Bars also suit investors who value simple, high-weight exposure to the gold price.

There is a separate rule that can sometimes matter for lower-value physical assets. Gains on a chattel sold for £6,000 or less are usually exempt, and marginal relief may apply where proceeds are between £6,000 and £15,000. The detail can become complicated for coins sold as a set, multiple assets disposed of together, or transactions arranged to split what is effectively one sale. Do not assume a series of small sales will automatically remove a CGT liability.

For substantial bar holdings, treat CGT as part of the expected cost of sale and calculate the likely position before accepting a price.

Keep records that stand up to a sale

A strong record is useful whether your coins are exempt or taxable. It helps prove authenticity and provenance to a future buyer, supports an accurate gain calculation and makes it easier to identify exactly what you sold.

Keep the following together for each purchase:

• the dealer invoice, showing the item, weight, purity, date and purchase price
• proof of payment and insured delivery costs where applicable
• photographs, serial numbers and assay-card details for bars
• the sale confirmation, buy-back invoice and any selling fees

Avoid treating bullion as one undifferentiated holding. If you bought a one-ounce bar in 2021 and another in 2025, their acquisition costs may be very different. Record each item or clearly identifiable batch separately. Where holdings are mixed, inherited, gifted or sold in portions, an accountant can help establish the correct cost basis before you dispose of them.

Storage fees are not automatically allowable CGT deductions simply because the bullion was held securely. The rules on deductible expenditure are specific, so do not add costs to your calculation without checking that they qualify.

Losses, gifts and inherited bullion

A loss on taxable gold can be valuable. If you sell a taxable bar or non-UK coin for less than its allowable cost, that capital loss may be set against gains in the same tax year or carried forward against future gains, provided it is claimed correctly. A loss on a CGT-exempt Britannia or Sovereign does not create an allowable capital loss, because the corresponding gain would not have been taxable.

Gifting bullion needs particular care. Giving gold to most people can count as a disposal at market value for CGT purposes, even if no money changes hands. Transfers between spouses or civil partners are usually treated differently and may be made on a no-gain, no-loss basis. Inherited bullion generally has a cost for CGT purposes based on its market value at the date of death, rather than the amount originally paid by the person who owned it.

These are areas where professional tax advice is worthwhile, especially if the holding is valuable or forms part of estate planning.

Reporting a taxable gold gain

If you have a taxable gain after losses and your available annual exemption, it will usually need to be reported to HMRC. Many investors do this through Self Assessment, with the normal deadline of 31 January after the end of the relevant tax year. There is also a real-time CGT reporting route in some circumstances.

Do not confuse bullion with UK residential property. The accelerated property reporting deadlines that apply to certain property disposals do not normally apply to a straightforward sale of gold. Still, reporting rules can change, and a tax adviser or HMRC guidance should be checked for your precise position.

Before selling, ask for a clear buy-back price and make sure the dealer identifies the items being purchased. Bullion Store can provide recognised investment products, secure delivery and a straightforward resale route, helping investors maintain a clean paper trail from purchase through to sale.

The most practical approach is to decide what you want your gold to do before you buy it. If tax-free future gains and flexible disposal matter most, qualifying UK legal tender coins deserve close attention. If lower premiums and maximum gold weight are the priority, bars may be the better fit. Buy with the end sale in mind, keep accurate records, and take tailored advice before a disposal that could create a significant gain.