Government take: royalties, taxes and state stakes

What it is

Minerals in the ground usually belong to the state. A company that mines them pays for that right, through several channels at once:

• a government royalty on what it produces,
• income tax on its profit,
• other levies such as withholding tax on dividends, import duties and windfall taxes,
• and in many countries, a free-carried interest that gives the state a share of the project without paying for it.

Added together, these are the government take. In a study, they are the difference between the pre-tax NPV and the after-tax NPV, plus whatever the state's equity stake takes.

Government royalties

A government royalty is set by law, applies to every mine of that type in the country, and is paid from the first tonne sold. It is a tax, not a financing: it is separate from the private royalties that companies sell to raise money, and both can apply to the same mine.

Rates and the base they are charged on vary widely by country, by metal and sometimes by mine size. Many countries charge a different rate for gold, base metals and bulk commodities.

Income tax and other levies

The mine then pays corporate income tax on profit after royalties, operating costs and depreciation of its capital spending. Points that matter for the model:

• Depreciation rules: how fast capex can be written off. Fast write-offs defer tax and raise NPV.
• Loss carry-forward: whether early losses can be used against later profit, and for how long.
• Ring-fencing: whether costs from one project can be set against profit from another.
• Withholding tax: a further tax when dividends or interest leave the country.
• Windfall or resource-rent taxes: extra tax on profits above a threshold, usually when prices are high.

State equity stakes

Many mining codes give the state a share of each mining licence, often a free-carried share that the company pays for. The state then takes its share of dividends. Some codes let the state buy a further stake at a set price. In both cases investors own less than 100% of the cash flow.

A worked example

An invented copper mine, in one typical year:

The same deposit in a country with a 5% royalty, 35% tax and a 15% free carry would leave investors noticeably less, every year, for the whole life of the mine. That is why two identical deposits can have very different values.

Why the type of royalty matters

Suppose the copper price falls 20% and NSR drops to $400 million. The cash margin halves to $100 million.

• A 3% NSR royalty still takes $12 million: 12% of the margin, up from 7.5%.
• A profit-based royalty falls with the margin.

Royalties on revenue hurt most when prices are low, and can turn a marginal mine unprofitable. Lenders test this in their downside cases.

Why it changes over time

Fiscal terms are set by governments and can be changed by them. Higher prices often bring new taxes, higher royalties or demands for a larger state stake. Some mines negotiate a stability agreement that fixes their terms for a period. See fiscal regime and stability for how that risk enters a valuation.

All figures are invented for illustration. Rates and rules vary by country and change over time. This is educational material, not investment or tax advice.