Uganda's mining royalties, tested for leakage

The Mining and Minerals Act 2022 sets royalties on gross value, provides for a state free-carry interest in large-scale operations, and sits alongside export levies designed to encourage domestic refining. On paper the package is competitive with regional peers.

Charging royalties on gross value rather than net profit is a deliberate design choice with real trade-offs. It is far simpler to administer and harder for an operator to erode through cost allocation, but it also means the state collects the same rate whether the operator is running a thin or a fat margin, which can bite hardest in exactly the periods when an operator can least afford it.

Leakage happens at three points: undeclared artisanal production that never enters the formal chain, valuation disputes on assay and purity at the point of export, and re-export flow that arrives already refined and attracts little domestic charge.

Raising headline rates addresses none of those. Sampling assays independently, publishing receipts against export volumes and auditing refinery inputs address all three.

The assay dispute point deserves more attention than it usually gets. Royalty and levy calculations depend on an agreed valuation of the parcel, and where the exporter's own assay is the only figure available, there is a structural incentive to understate purity or weight at the point of declaration. Independent, government-run assay capability at major export points is one of the cheaper reforms available relative to its likely revenue impact, yet it remains under-resourced across the region.

For a licensed operator the fiscal terms are workable and, at current prices, comfortably so. The genuine risk is regime instability driven by a public perception that the sector under-contributes. Operators that can evidence their own payments are best insulated from that pressure.

Tanzania's royalty regime, tightened significantly after its 2017 mining law reforms, is often cited by Ugandan policymakers as the more aggressive comparator, and it did succeed in raising headline receipts, though at the cost of a period of strained relations with foreign investors that took years to repair. The Democratic Republic of Congo's 2018 mining code similarly raised royalties on strategic minerals and introduced a windfall tax on excess profits, with mixed results on actual collection given weaker enforcement capacity.

Uganda's current framing, competitive headline rates combined with a focus on collection mechanics rather than rate increases, is closer to the approach recommended by most multilateral fiscal advisers for a jurisdiction still building administrative capacity. Whether that restraint survives a period of politically visible export growth without a matching rise in visible receipts is the open question this coverage keeps returning to.