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The gold-silver ratio is the number of ounces of silver needed to buy one ounce of gold. At current prices of approximately £3,800/oz for gold and £27/oz for silver, the ratio is approximately 140:1 — meaning one ounce of gold buys 140 ounces of silver.
The ratio fluctuates continuously with the two prices and is used by some investors to identify periods when one metal is relatively cheap or expensive compared to the other.
At a glance
| Period | Approximate ratio | Context |
|---|---|---|
| Ancient world | ~12:1 to 16:1 | Fixed by monetary authorities |
| Gold standard era | ~15:1 to 20:1 | Fixed ratios common |
| Post-WW2 average | ~40:1 to 60:1 | Silver demonetised |
| 2011 low | ~32:1 | Both metals at highs |
| March 2020 (COVID) | ~125:1 | Silver crashed with equities |
| Early 2026 | ~140:1 | Gold near record, silver lagging |
| 20th/21st century average | ~55–65:1 | Rough historical mean |
What the ratio measures — and what it doesn’t
The ratio measures relative price only. It says nothing about whether either metal is cheap or expensive in absolute terms — only how they are valued relative to each other.
A ratio of 140:1 means silver is historically cheap relative to gold. It does not tell you:
- Whether silver will rise to bring the ratio down
- Whether gold will fall to bring the ratio down
- Whether the current ratio is sustainable indefinitely
The ratio can stay at elevated levels for years. It can compress dramatically in months. The 2020 ratio of 125:1 compressed to around 65:1 within 12 months as silver surged — but only after a sharp initial selloff, and the compression required a specific macroeconomic catalyst (pandemic stimulus and industrial recovery).
Why the ratio fluctuates
Gold and silver share some drivers — real interest rates, dollar strength, geopolitical risk — but also differ in important ways.
Silver has substantial industrial demand: approximately 50–60% of silver demand comes from industrial applications (electronics, solar panels, medical uses). During economic recessions, industrial demand falls, silver underperforms gold, and the ratio rises. During economic recoveries, industrial demand recovers and silver can outperform, compressing the ratio.
Gold has more investment demand: central bank buying, ETF flows, and long-term store-of-value investment support gold independently of economic cycles. Silver’s investment market is smaller and less sustained.
Supply is asymmetric: gold mine supply grows at approximately 1–2% per year and is explicitly targeted. Silver is largely produced as a by-product of copper, lead, and zinc mining — supply is less responsive to silver prices specifically.
These differences mean the ratio is not mean-reverting in a predictable way. It reflects structural economic differences between the metals, not just short-term sentiment.
How investors use the ratio
Some investors use the ratio as a tactical allocation signal:
High ratio (silver cheap relative to gold): May consider switching a portion of gold holdings into silver, expecting ratio compression. The historical precedent is that very high ratios (above 80–90:1) have been followed by periods of silver outperformance over one to three years in several historical cycles.
Low ratio (silver expensive relative to gold): May consider switching from silver back into gold, locking in relative gains from ratio compression.
The logic is straightforward. The practical execution is complicated — particularly for UK investors.
The UK complication: VAT and CGT
This is where the gold-silver ratio strategy runs into real friction for UK investors.
VAT on silver: If you sell gold Sovereigns (CGT-exempt, no VAT) and buy Silver Britannias, you pay 20% VAT on the silver purchase. That VAT is an immediate 20% cost of the switch that the ratio must overcome to break even. If the ratio is 140:1 and you switch from gold to silver, the ratio would need to compress to approximately 112:1 (a 20% move) before you have recovered the VAT cost in relative terms.
CGT on gold: Gold Sovereigns and Britannias are CGT-exempt — selling them triggers no tax. This is actually an advantage: switching out of gold is tax-free. The friction is entirely on the silver entry side (20% VAT).
CGT on silver exit: If you bought Silver Britannias (CGT-exempt), selling them when the ratio is low is also tax-free. If you bought foreign silver (Maples, Philharmonics), selling at a profit triggers CGT.
The cleanest ratio trade for UK investors:
- Hold Gold Sovereigns (CGT-free exit)
- Switch to Silver Britannias (20% VAT cost on entry, CGT-free exit)
- Switch back when ratio compresses (CGT-free exit on Britannias)
The 20% VAT hurdle on each silver entry makes this a trade that only makes sense if the expected ratio compression is substantial — not a small tactical adjustment.
The ETC route: Holding gold and silver through ETCs avoids the VAT issue entirely (ETCs are financial instruments, no VAT applies). Switching between a gold ETC and a silver ETC inside an ISA is also CGT-free. This is a cleaner vehicle for ratio trading than physical metal for most UK investors.
The ratio as a long-term signal
For long-term physical precious metals investors rather than tactical traders, the ratio is a useful background indicator rather than a trading trigger.
At historically elevated ratios (above 80:1), the case for adding some silver exposure to a predominantly gold portfolio has a reasonable historical basis — silver has, over several historical cycles, delivered higher percentage returns from extreme ratio highs.
At more moderate ratios (40–60:1), the relative valuation argument weakens. Gold’s structural advantages for UK investors — VAT-free, clear CGT-exempt coins, deeper dealer market, central bank demand support — reassert.
Ratio history: key reference points
| Date | Gold price (GBP) | Silver price (GBP) | Ratio | Context |
|---|---|---|---|---|
| Jan 2000 | ~£185/oz | ~£3.40/oz | ~54:1 | Both metals low |
| Sep 2011 | ~£1,180/oz | ~£36/oz | ~33:1 | Both metals near highs |
| Dec 2015 | ~£770/oz | ~£10.20/oz | ~75:1 | Gold bear market low |
| Mar 2020 | ~£1,450/oz | ~£11.50/oz | ~126:1 | COVID panic |
| Aug 2020 | ~£1,600/oz | ~£24/oz | ~67:1 | Silver surge |
| Early 2026 | ~£3,800/oz | ~£27/oz | ~140:1 | Gold record, silver lagging |
The ratio’s current level of approximately 140:1 is the highest in modern market history, reflecting gold’s exceptional run driven by central bank buying and geopolitical demand while silver’s industrial demand base has not kept pace.
How people usually decide
Investors who pay close attention to the ratio tend to use it as one input among several, not as a sole signal:
- A ratio above 80:1 flags silver as historically cheap and increases their willingness to add silver to a predominantly gold portfolio
- A ratio below 50:1 flags silver as historically expensive relative to gold and may lead them to reduce silver and increase gold
For most long-term UK physical metal investors, the ratio is less actionable than it appears because of the VAT cost of any switch involving silver. The ETC route removes this friction but introduces counterparty risk and removes physical ownership.
See silver vs gold for UK investors for the broader comparison of the two metals.
Tax and regulation
Switching between gold and silver — in either direction — using physical metal involves:
- Selling gold Sovereigns/Britannias: CGT-exempt. No tax event.
- Buying silver Britannias: 20% VAT on purchase. Non-recoverable.
- Selling silver Britannias: CGT-exempt if Royal Mint legal tender.
- Selling foreign silver (Maples etc.): CGT applies on gains above £3,000.
For ETC-based ratio trades inside an ISA: no VAT, no CGT on any switch.
This guide contains factual information only and does not constitute financial or investment advice.
Frequently asked questions
What is the gold-silver ratio? The gold-silver ratio is the number of ounces of silver required to buy one ounce of gold. If gold is £3,800/oz and silver is £27/oz, the ratio is 140:1. The ratio fluctuates continuously and is used by some investors as a relative value signal between the two metals.
What is a normal gold-silver ratio? There is no fixed “normal” ratio. Historically, ancient economies often pegged it at around 15:1 to 16:1. In modern markets (post-1971 float), the ratio has ranged from approximately 32:1 to over 125:1. The 20th/21st century average is often cited at around 55–65:1.
Should I switch from gold to silver when the ratio is high? High ratio = silver is relatively cheap vs gold. Some investors switch from gold into silver expecting the ratio to revert towards historical averages. For UK investors, this carries a 20% VAT cost on the silver purchase that significantly reduces the financial case. The ratio must compress substantially to overcome the VAT drag.
What is the gold-silver ratio right now? At current prices (gold approximately £3,800/oz, silver approximately £27/oz), the ratio is approximately 140:1 — historically elevated. Check live prices for the current figure.