Mining companies operating in Ontario may be subject to several forms of taxation, including Ontario mining tax and federal and provincial corporate income tax. This article provides an overview of what Ontario mining tax is, how it’s calculated, what tax exemptions exist, and more.
What Is The Ontario Mining Tax?
Ontario mining tax applies to profits earned from extracting mineral substances from Ontario mines and selling those substances; it is separate from corporate tax.
The tax generally applies at the mine-operator level. Depending on the structure of the project, an operator may include members of a partnership or joint venture.
This makes project structure important. Mining participants should understand which entity is considered the operator, how revenues and expenses are allocated, and how associated corporations or joint ventures may affect available deductions.
Ontario Mining Tax Rates
Ontario currently applies mining tax rates of:
- 10% of taxable profit from a non-remote mine; and
- 5% of taxable profit from a remote mine.
The tax generally applies to annual profit exceeding a $500,000 deduction. Associated corporations must share this deduction, and it may be prorated in some circumstances.
Whether a mine qualifies as remote depends on legislative criteria and should be confirmed before relying on the reduced rate.
How Is Mining Profit Calculated?
Mining profit for tax purposes is not necessarily the same as the net income shown on a company’s financial statements.
The calculation generally starts with revenue from mineral production and applies the deductions and adjustments permitted under Ontario mining tax law. These may include operating expenses, exploration and development costs, capital-related deductions, processing allowances, reclamation costs, prior-year mining losses, and certain related-party transactions.
Ontario also provides a processing allowance for qualifying processing assets used in Canada. Depending on the assets and their location, the allowance may range from 8% to 20% of eligible capital cost.
Because the classification and timing of expenses can affect the final tax calculation, mining companies should maintain detailed records connecting expenditures to the applicable mine, activity, asset, and taxation year.
Tax Exemptions For New Mines
A new Ontario mine may qualify for a mining tax exemption covering up to $10 million of profit during its exemption period.
The exemption period is generally:
- three years for a new non-remote mine; and
- ten years for a new remote mine.
Certain major expansions of existing non-remote mines may also qualify.
These exemptions apply specifically to Ontario mining tax. Other obligations, including corporate income tax, payroll taxes, sales tax, and municipal charges, may still apply.
Corporate Income Tax And Other Taxes
Mining companies operating through a permanent establishment in Ontario are generally subject to both federal and Ontario corporate income tax.
Ontario’s general corporate income tax rate is 11.5%. Certain qualifying income from manufacturing, processing, mining, logging, farming, or fishing activities may be eligible for a provincial credit that effectively reduces the Ontario rate to 10%.
Depending on the project, mining businesses may also face HST, Employer Health Tax, CPP and EI obligations, workers’ compensation premiums, property taxes, fuel or excise taxes, and mineral land taxes or Crown royalties.
Tax Incentives For Mineral Exploration
Tax incentives can also affect how exploration-stage mining companies raise capital.
Flow-through shares allow qualifying resource corporations to renounce certain Canadian exploration or development expenses to investors, who may then claim eligible deductions.
Eligible Ontario residents who purchase qualifying flow-through shares may also qualify for the Ontario Focused Flow-Through Share Tax Credit, equal to 5% of eligible Ontario exploration expenses.
Federal incentives may include the 15% Mineral Exploration Tax Credit and the 30% Critical Mineral Exploration Tax Credit for qualifying expenditures. Eligibility requirements and program timelines can change, so current rules should be confirmed when financing is structured.
Common Mining Tax Issues
Mining tax problems can arise when operators:
- Treat mining tax and corporate income tax as the same regime;
- Assume a mine qualifies for the remote rate;
- Incorrectly allocate the $500,000 deduction among associated corporations;
- Inadequately document exploration, development, or processing expenses;
- Misallocate revenues or costs within a joint venture or partnership; or
- Rely on outdated tax-credit or filing requirements.
Addressing tax issues early can help mining companies structure agreements, financing, and project operations more effectively.
Get Mining Tax Advice From Licata Law Professional Corporation
Tax treatment can affect mining agreements, joint ventures, investment structures, project development, and financing.
Licata Law Professional Corporation provides mining legal services in Ontario. Contact the firm to discuss whether its current services and jurisdictional scope are a fit for your mining project.
This article provides general information only and is not legal, tax, accounting, or investment advice.
FAQs About Mining Taxation In Ontario
Who has to pay mining tax in Ontario?
Operators earning profits from qualifying minerals extracted from Ontario mines may be subject to Ontario mining tax. Members of partnerships and joint ventures may also qualify as operators.
What is the difference between Ontario mining tax & corporate income tax?
Ontario mining tax applies specifically to mining profit, while corporate income tax applies more broadly to a corporation’s taxable income. A mining company may be subject to both.
Are exploration & development costs deductible?
Certain qualifying exploration and development expenses may be deductible or otherwise recognized for tax purposes. Their treatment depends on the type, timing, location, and purpose of the expenditure.