An Analysis of Why Gold Is Becoming a Defensive Currency for African Central Banks

Introduction

Global economic uncertainty has spiked in 2025, driven by renewed U.S. trade wars, interest-rate divergences, and geopolitical tensions. U.S. President Trump’s threat of steep tariffs on Europe and elsewhere – effectively “weaponizing” the dollar has unsettled markets. In mid-March 2025, for example, gold surged to historic highs as investors fled into safe havens amid news of Trump’s tariffs, giving a temporary boost to commodity-linked currencies like South Africa’s rand. Across emerging markets, Federal Reserve policies and fiscal strains have widened growth and rate gaps, putting extra pressure on fragile local currencies. In this context, where the dollar’s dominance and U.S. policy are viewed with growing distrust, many African central banks are rebuilding gold reserves as a hedge against foreign-exchange shocks.

Gold’s appeal lies in its unique reserve attributes: it is a stable, liquid store of value with no counterparty risk. As one analysis puts it, “gold remains a critical asset for central banks globally due to its stability, liquidity, and consistent returns”. World Gold Council (WGC) surveys find that 95% of monetary authorities expect gold holdings to rise in the next year. Central banks bought record amounts of gold in 2023–2024 (over 1,000 tonnes each year), nearly doubling the decade’s average. In 2024, central banks worldwide held about 36,000 tonnes of gold – close to a six-decade high – as 66% of them increased bullion to diversify and roughly 20% did so as a geopolitical hedge. Emerging-market banks in particular have been most aggressive. For example, in May 2025, the World Gold Council reported big purchases by Kazakhstan (+7t) and Turkey (+6t), as well as gains by Poland and even Ghana (+1t). Surveyed officials explicitly cite “trade protectionism” and “currency shocks” as reasons to add gold.

These global trends echo loudly in Africa. Analysts note that gold reserves “act as a safeguard against currency volatility” and signal credibility to investors. In economies prone to sudden FX swings, central banks see bullion as insurance. According to African Leadership Magazine, “Africa’s central banks increasingly turn to gold to secure economic resilience, enhance monetary sovereignty, and build investor confidence” in today’s unstable climate. Gold’s long-term value retention makes it a powerful “financial anchor” for nations wary of any single foreign-currency peg. A World Gold Council survey underscores this shift: 76% of central bankers now project that gold will make up a larger share of reserves over five years, while 73% expect the dollar’s share to shrink. In short, policymakers worldwide – and especially in the Global South – are interpreting U.S. policy moves as a wake-up call to reduce over-dependence on the greenback.

African Gold Reserves on the Rise

Africa’s largest gold reserves tend to be in North African countries (Algeria, Libya, Egypt), but sub-Saharan nations are accelerating their accumulation. Business Insider Africa reports that Algeria holds ~174 t, Libya ~147 t, and Egypt ~128 t as of Q1 2025. Ghana – Africa’s top gold producer – leads in Sub-Saharan holdings with ~31.0 t. In recent years, Ghana’s central bank has embarked on an aggressive “Gold for Reserves” policy, boosting official stock from under 9 t in mid-2023 to ~33 t by June 2025. Mauritania, Kenya, and others have added more modest amounts to diversify away from foreign currency. The message is clear: even resource-rich exporters (like Ghana) are hoarding bullion not just for revenue, but as reserve backing to insulate their cedi. Smaller economies – facing narrow export bases – likewise treat gold as a buffer rather than a mere windfall.

According to Business Insider Africa, many African central banks now see gold as part of sovereign risk management. Gold reserves “strengthen monetary sovereignty and reduce reliance on foreign currencies,” enhancing credibility in international markets. This thinking dovetails with global patterns: emerging markets, collectively, plan to increase gold holdings faster than advanced economies. One WGC survey found nearly half of Global South central banks intend to grow gold reserves in the coming year, versus only one-fifth of advanced economies. These banks point to trade wars and sanctions as prime motivators – doubts about the dollar’s safe-haven status have prompted them to “shift their reserves towards gold at a much faster rate than advanced economies”.

Nigeria: Fortifying the Naira

Nigeria’s naira has been among Africa’s weakest currencies, driven down by inflation, import dependence, and FX shortages. At times, the naira has plummeted over 20% in a month, and even aggressive rate hikes by the Central Bank of Nigeria (CBN) have struggled to halt declines. Such volatility has led legislators to push new policy frameworks: in July 2024, a Nigerian senator proposed a Gold Reserve Bill to formalize gold’s role in monetary policy. The draft legislation would make the CBN the “off-taker” of all domestic gold and target a minimum of 30% of reserves in bullion. Its stated aim is to use gold “as a financial anchor, providing a secure foundation for currency value and overall economic health”, thus “mitigating inflation and deflation risks” and stabilizing the naira. Though still under consideration, this bill underscores how Nigeria’s policymakers are eyeing gold as a tool to shore up credibility.

Meanwhile, on the ground, the CBN is quietly expanding its bullion holdings. In its 2024 audited accounts, the bank disclosed that gold reserves jumped in value from ₦1.28 trillion to ₦2.77 trillion (about $6.2 billion) between end-2023 and end-2024. (The quantity of gold held – ~687,400 troy ounces – was unchanged; the entire increase came from higher prices.) Importantly, gold’s share of Nigeria’s total reserves rose from ~4.3% to ~5.1% in one year. As one analysis noted, this “signals a deliberate diversification away from traditional currency reserves, providing a hedge against dollar volatility and global financial risks”. In other words, Abuja sees gold as one way to buttress its reserves when the U.S. dollar is unpredictable.

Traders and businesses in Nigeria have long felt the pinch of dollar shortages and rate swings. One foreign exchange researcher observed that even savvy importers have given up on dodgy naira/dollar markets – some transact in Chinese yuan or cryptocurrencies – just to avoid the naira’s roller coaster. This de-dollarization from below – ordinary companies and entrepreneurs finding alternatives to the USD – reflects the scale of mistrust in the formal FX system. In this environment, policymakers argue that beefing up gold stockpiles will help “backstop” the naira and keep inflation expectations in check.

Ghana: Using Gold to Anchor Recovery

Ghana presents a case of a country turning its natural advantage into monetary insurance. After defaulting on its debt in 2023, Ghana entered an IMF program and urgently needed foreign exchange. Gold exports – already Africa’s largest – became a lifeline. By mid-2025, Ghana’s gold exports had surged over 75% year-on-year, creating a large trade surplus that bolstered reserves to about $11.1 billion (enough for 4.8 months of imports). The cedi appreciated roughly 40% in 2025, making it one of the world’s best-performing currencies that year.

Bank of Ghana Governor Johnson Asiama has explicitly linked gold to stability. Since May 2023, the BoG has purchased local gold on the market (via the Gold Board) and added it to reserves. Its total gold stock shot from 8.78 t in 2023 to 32.99 t by June 2025. In June alone, it bought 0.83 t – the largest monthly increase of 2025. Asiama explains that formalizing small-scale gold exports into reserve accumulation “directly translates to reserve growth and monetary stability”. In BoG’s words, gold serves as a “safe-haven asset and a hedge against currency depreciation” amid global turmoil – precisely what dollar and euro reserves cannot guarantee in volatile times.

Analysts see Ghana’s moves as aimed at insulation. By bulking up gold, the central bank avoids having all its eggs in one basket. The June 2025 jump to 33 tons of gold “signals to investors, multilateral lenders, and credit rating agencies that Ghana remains committed to building a resilient macroeconomic framework,” one report noted. It also keeps value in the domestic mining sector: buying Ghanaian-mined gold means less pressure on FX markets to pay for imports. To lock in gains, Ghana is even exploring hedging future gold prices to protect its reserve build-up. All told, Ghana exemplifies how a developing country can leverage its gold output as a buffer and a signal of prudent management.

South Africa: Gold Prices Bolster the Rand and Reserves

South Africa has long been a major gold miner, though its central bank holds relatively modest bullion reserves by African standards. Still, the South African rand – often called a “commodity-backed currency” – naturally reacts to gold’s fortunes. In March 2025, for example, gold’s rapid rally (to ~$3,500/oz) helped lift the rand about 0.7% against the dollar, even while domestic political uncertainty was dampening confidence. One market analyst observed that the rand’s strength that week was “more to do with the record gold price and strong commodity prices” than any local factor. In other words, even an asset like the rand benefits indirectly from safe-haven flows into gold and mining stocks.

Behind the scenes, rising gold prices also inflate the value of South Africa’s reserves. By April 2025, the SARB reported that higher bullion prices had effectively added about R19.4 billion (~$1 billion) to its reserves in just one month. The Bank’s statement made clear that this was “mainly driven by a […] higher gold price” (up 9% in March). Overall, South Africa’s gold reserves grew in value by some $2 billion in 2025 amid “mounting US policy uncertainty”. Thus, even without active new purchases, South Africa is accruing benefits simply by being a gold exporter. Policymakers treat the windfall conservatively, but it does give some extra breathing room as global trade tensions roil markets.

It is notable, however, that unlike Ghana or Nigeria, the SARB has not signaled an aggressive new gold-accumulation campaign. South Africa’s strategy remains focused on traditional foreign-exchange management, even as it watches prices. But the recent episode underlines a broader point: in a world of “weaponized” dollars, even commodity economies find that higher gold prices can shore up their currency and reserves.

The Global South and the De-Dollarization Trend

Beyond individual countries, the turn toward gold reflects a deeper shift. Surveys show roughly half of central banks in the “Global South” (emerging markets and developing economies) plan to expand gold reserves in the next year. In contrast, only about 21% of advanced economies intend to do so. Respondents cite geopolitical instability and rising trade protectionism – in part due to U.S. tariffs – as chief reasons. Indeed, one anonymous official told the WGC that recent U.S. tariff policies may “reduce interest in USD and USD-denominated assets as a reserve currency”. They foresee a gradual but steady “de-dollarization” even if the dollar’s institutional advantages remain strong.

Many analysts argue that Africa’s gold drive is ultimately a symptom of mistrust in the existing dollar-based system. When traders in Nigeria or Ghana find it hard to get dollars at reasonable rates, or fear sanctions risk, the appeal of alternatives grows. The gold trend dovetails with other “de-dollarization” efforts: currency swaps with China, talk of new trade currencies, even experiments with digital tokens (Zimbabwe’s gold-backed token, for example). But gold is the oldest form of diversification: it requires no new technology or alliance. As one report put it, central banks are sharpening “active reserve management,” with 44% now handling gold separately from other assets.

In sum, Africa’s central banks are turning to gold as both insurance and signaling. Insurance because gold can cushion shocks – a 20% jump in bullion value can instantly relieve pressures that might otherwise crash a currency. Signaling because each tonne of gold amassed tells markets that a country is breaking from the dollar-only playbook. It suggests an acknowledgement that past fixes – IMF bailouts, dollar borrowing – may not be enough for the next crisis. By contrast, gold requires no one’s good graces and cannot be unfriended or sanctioned.