Tanzania’s gold sector has emerged as the country’s top foreign exchange earner, surpassing tourism in 2020, but its economic potential continues to be undermined by widespread smuggling and illicit financial flows. Investigations show that despite the gold boom, billions of shillings are lost annually as a result of illegal exports orchestrated by complex transnational networks. These criminal operations, often involving powerful local families with ties to Kenya, South Africa, and India, are costing the country vast revenues that could otherwise fund critical infrastructure and social programmes.
Artisanal and small-scale mining remains a significant part of the industry, contributing around 20 tonnes of gold each year. Yet nearly 90 percent of this output is believed to be trafficked across borders without passing through formal channels. The Parliamentary Committee on Energy and Minerals confirmed that most of the gold mined by small-scale miners evades official markets, resulting in tax losses and regulatory failure. The allure of higher prices offered by smugglers—sometimes 20 to 30 percent above official rates—continues to draw miners away from legal buyers, especially in regions like Geita and Shinyanga where daily earnings can be as low as $3.
Official figures illustrate the scale of the problem. A 2022 report from the Tanzania Minerals Audit Agency and UN Comtrade estimated that the country loses about 30 percent of its gold to smuggling annually, representing over $1 billion in missed revenue. Trade anomalies further underscore the crisis: in 2017, Dubai reported importing $8.5 billion worth of Tanzanian gold, while Tanzania’s own records showed only $1.9 billion—suggesting that a vast quantity had bypassed legal oversight. Swissaid later reported that in 2020 alone, $1.3 billion worth of Tanzanian gold was smuggled to Dubai.
The routes used for smuggling are varied and increasingly innovative. Gold has been discovered hidden in toothpaste tubes, electronics, dried fish, and other everyday items, smuggled through weakly policed borders with Kenya and Uganda. In one high-profile case in 2023, over 430 kilograms of gold worth $38 million were seized at Julius Nyerere International Airport, while 543 kilograms were intercepted in Nairobi two years earlier.
The government has introduced several reforms aimed at stemming the tide. These include electronic tax stamps, designated mineral trading centres, and strengthened enforcement at airports and ports. Over 120 trading centres now operate across Tanzania, helping increase formal gold exports by 27 percent in 2018. But challenges remain. Nearly a third of these centres are underutilised, and only a fraction—around five percent—of the estimated 1.5 million artisanal miners are formally registered.
Corruption further complicates enforcement. According to a 2023 survey by Transparency International Tanzania, more than a quarter of miners admitted to bribing officials to bypass checkpoints. Meanwhile, international scrutiny has mounted. A Swiss refinery was fined in 2023 for sourcing illicit Tanzanian gold, and reports of surging black-market prices in mining towns have added pressure on authorities.
The smuggling issue is not limited to gold. The illicit trade in tanzanite and copper is also on the rise. Norwegian Church Aid estimated that up to $300 million worth of tanzanite is smuggled out of the country each year, often routed through Kenya or India. In one case from 2024, nearly 16 kilograms of gold valued at $1.4 million were discovered hidden in a shipping container at Dar es Salaam Port. In another instance, 58 kilograms of gold disguised as dried fish were intercepted—further evidence of a deeply entrenched and highly sophisticated illegal trade.
The late President John Magufuli spearheaded efforts to curb malpractice in the mining sector. In 2017, a landmark case against Acacia Mining resulted in a $190 billion tax demand for allegedly conducting 17 years of undeclared operations. More recently, the Ministry of Minerals under Anthony Mavunde has outlined an ambitious plan to formalise trade, enforce border controls, and crack down on smuggling. This includes equipping resident mining officers, enhancing special task forces, deploying digital tracking tools, and mandating exclusive sales to licensed dealers.
Technological solutions such as blockchain mineral tracking and electronic tags are being introduced to improve traceability. Authorities also aim to expand domestic gold markets and streamline licensing processes for small-scale miners. The Geological Survey of Tanzania has been tasked with monitoring production and ensuring accurate reporting from mineral right holders.
However, systemic issues remain. Complex corporate structures, shell companies, and offshore tax havens are routinely used by both local and multinational entities to obscure earnings and reduce taxable income. Experts argue that even large mining firms under-declare exports and engage in transfer pricing—selling gold to subsidiaries at artificially low prices to avoid tax obligations. The result is a parallel economy that drains the country’s resources and undermines national development.
Silas Olan’g of the Natural Resource Governance Institute has pointed out that oversight of artisanal and small-scale miners is still weak, allowing smugglers to flourish. He insists that instilling integrity within gold market centres and placing trustworthy officials in charge is key to eliminating illicit trade. Similarly, Dr Peter Kafumu, former Mineral Commissioner, blames ineffective law enforcement and regulatory weaknesses for enabling the problem to persist.
The international community has also weighed in. The African Union has called for harmonised mineral trade policies to combat cross-border smuggling, and the United Nations Office on Drugs and Crime estimates that 30 to 40 percent of Tanzania’s gold is still trafficked illegally. Global Financial Integrity and UNCTAD have urged Tanzania to strengthen its customs systems and invest in transparency-driven solutions.
The World Bank warned in 2022 that the shadow gold economy is distorting local markets and diverting both labour and capital from regulated sectors. Meanwhile, the Sealing the Gaps report from 2020 highlighted that illicit financial flows have already cost Tanzania millions—particularly alarming given that gold accounts for 90 percent of the nation’s mineral exports.
Addressing this crisis is no longer just an economic imperative—it is a national necessity. The losses inflicted by illicit financial flows reach far beyond state coffers, affecting community livelihoods, eroding public trust, and undermining efforts to build a resilient and equitable economy. Tanzania’s challenge now lies not just in extracting its wealth, but in securing it.
