Buying gold in instalments usually means spending the same amount of money on gold every month, whatever the price. When the price is low you get more grams, and when it is high you get fewer, so your average purchase price is smoothed over time. This is known as pound-cost averaging. It does not guarantee a profit, but it reduces how much the outcome depends on the timing of any single purchase.
How pound-cost averaging works: an example
Suppose you set aside £200 a month and the price per gram moves as below. The figures are illustrative, not real prices.
| Month | Amount | Illustrative price per gram | Grams bought |
|---|---|---|---|
| 1 | £200 | £95 | 2.11g |
| 2 | £200 | £100 | 2.00g |
| 3 | £200 | £105 | 1.90g |
| Total | £600 | average £100 | 6.01g |
The average market price over the three months is £100, but your average cost is about £99.80 per gram (£600 / 6.01g). That is because a fixed sum buys more grams when the price is lower. The difference is small, and if the price only rises, a single purchase at the start would have done better. The real benefits are discipline and a lower risk of putting everything in at a peak.
Fixed sum or fixed weight?
There are two ways to buy regularly. With the first you spend the same number of pounds each month – that is true pound-cost averaging. With the second you buy the same weight each month, for example one 2g bar or one Sovereign. Then the amount you spend varies with the price, and your average cost equals the average market price, without the effect shown above. A fixed sum is easier to budget for but needs a dealer that sells fractional amounts, or a mix of saved cash and purchases.
Option 1: a small bar or coin every month
The simplest approach is to buy a 1g, 2g or 5g bar, or a small coin, every month. The catch is the premium: small items cost noticeably more per gram than a 1oz or 100g bar, and dealers buy them back at a bigger discount. Compare the price per gram of a small bar with live UK gold prices to see the gap.
- Pro: every purchase is physical gold you hold.
- Con: higher premium, and possibly delivery costs every month.
Option 2: Sovereigns on a schedule
Many UK buyers accumulate full Sovereigns, each containing about 7.32g of fine gold, one at a time. They are widely traded and HMRC treats them as UK legal tender, so gains on them are exempt from Capital Gains Tax. Britannias are also exempt but come in larger sizes, so they suit a less frequent schedule. Premiums on single coins vary, so compare dealers before each purchase.
Option 3: save the cash and buy less often
Instead of buying every month, you can save the money and buy a larger bar or coin every three or six months. You keep part of the averaging effect and pay a lower premium.
- Pro: lower cost per gram and fewer delivery charges.
- Con: fewer purchase points, and the temptation to spend the saved cash on something else.
Option 4: a dealer savings plan
Some dealers offer plans where you pay a monthly sum and are credited with the matching weight of gold, stored by the dealer or built up into a whole bar. Before you sign up, check:
- Whether the gold is allocated and held in your name, or whether you only have a claim on the dealer.
- The fees for buying, storage and withdrawal.
- How and when you can take physical delivery, and in what sizes.
- What happens to your gold if the dealer goes out of business.
- Whether you can pause or close the plan without a penalty.
Physical gold schemes are generally not covered by the FSCS, so the answers to these questions matter. If the terms are not written down clearly, treat that as a warning sign.
What if “instalments” means credit?
Sometimes “buying in instalments” means using a loan, a credit card or a buy-now-pay-later service. Interest and fees are then added to the price of the gold. Gold pays no interest or dividends, so its price has to cover both the dealer’s spread and the cost of borrowing before the purchase shows a gain. Compare the APR with how long you expect to hold the gold.
Practical tips for regular buying
- Pick a fixed day each month and stick to it regardless of the news. That is the whole point of the method.
- Track your average price per gram in a simple spreadsheet: date, amount, grams, dealer.
- Keep every invoice. For bars, they prove your purchase cost if you later need to work out a gain.
- Compare prices on the UK bullion dealers page before each purchase. The cheapest dealer can change from month to month.
- As your holding grows, think about storage: a home safe, a safe deposit box or a vault.
- The gold calculator shows how many grams a given sum buys at today’s price.
VAT and Capital Gains Tax
Investment gold is exempt from VAT whether you buy it all at once or bit by bit. For CGT, Sovereigns and Britannias are exempt as UK legal tender. Gold bars are chargeable assets: gains above the annual exempt amount (£3,000 for 2025–26) are taxed at 18% or 24% depending on your income. With many small purchases, the cost of each one counts towards your total cost, so keep the records together. Check current figures on gov.uk.
Regular buying does not mean you have to sell in instalments. Larger bars and standard coins are usually bought back closer to the gold price than small bars.
Bottom line
Pound-cost averaging means buying for the same amount at regular intervals, so a lower price buys more grams. It does not guarantee a profit, and in a steadily rising market it can underperform a single early purchase. Small monthly bars carry higher premiums, Sovereigns are CGT-exempt while bars are not, and dealer savings plans add dealer risk and fees that should be checked in the contract.
Sources: GOV.UK – CGT rates and allowances · HMRC Capital Gains Manual CG78305 · World Gold Council – Gold Demand Trends
This is general information, not tax or investment advice.
Frequently asked questions
What is pound-cost averaging with gold?
Buying gold for the same amount of money at regular intervals, for example monthly. A lower price buys more grams and a higher price buys fewer, which smooths your average purchase price.
Is it worth buying a 1g gold bar every month?
Small bars carry a higher price per gram. Alternatives include buying a Sovereign on a schedule or saving the cash and buying a larger bar every few months.
Does pound-cost averaging guarantee a profit?
No. It only smooths your average purchase price. If the price rises steadily, a single purchase at the start would have done better.
Are monthly Sovereign purchases subject to Capital Gains Tax?
No. HMRC treats Sovereigns as UK legal tender, so gains on them are exempt from CGT. Gold bars are chargeable assets.
