Investors Guide to Flow-Through Investing
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A Timeline of Key Milestones
Canada's flow-through share program has evolved over eight decades from a simple wartime tax credit into a sophisticated financing mechanism for mineral exploration. This timeline traces the major legislative, regulatory, and market milestones drawn from the Accilent Capital Scrivener project, including research PDFs and internal documents.
Origins & Early Tax Incentives (1942–1971)
| Year |
Milestone |
| 1942 |
First tax credits introduced for resource exploration and development expenditures. |
| 1947 |
Exploration and development costs become fully deductible for mining and petroleum corporations. |
| 1954 |
Expenses-for-shares transaction formally recognized in income tax law (Section 83A); restricted to principal-business corporations. |
Expansion & Reform (1972–1985)
| Year |
Milestone |
| 1972 |
Tax reform extends flow-through transactions to individuals and non-principal-business corporations. |
| 1974 |
Canadian Exploration and Development Expense (CEDE) split into Canadian Exploration Expense (CEE) and Canadian Development Expense (CDE). |
| 1976 |
CEE deduction rate increased to 100% for all taxpayers; shares deemed inventory at nil cost. |
| 1979 |
Canadian Oil and Gas Property Expense (COGPE) separated from CDE. |
| 1981 |
Proceeds from sale of flow-through shares taxed as capital gains rather than income. |
| 1983 |
Large limited partnerships become major vehicles for flow-through share investing. |
| 1985 |
Look-Back Rule introduced, allowing investors to deduct CEE from previous year's taxable income. |
Modern Regime & Peak (1986–1994)
| Year |
Milestone |
| 1986 |
Current flow-through share regime introduced; the term "flow-through share" first appears in legislation. Companies can renounce eligible expenses directly to investors. |
| 1987 |
Flow-through share investing peaks at $1.1 billion in renunciations. Major federal tax reform reduces personal rates and broadens prescribed share rules. |
| 1988 |
Canadian Exploration and Development Incentive Program (CEDIP) rate reduced; Canadian Exploration Incentive Program (CEIP) announced. |
| 1989 |
CEIP becomes effective for mining. Federal budget terminates certain incentive provisions. |
| 1990 |
Federal budget terminates CEIP. |
| 1994 |
Department of Finance publishes "Flow-Through Shares: An Evaluation Report" covering 1983–1991. |
METC Era (1996–2021)
| Year |
Milestone |
| 1996 |
Look-Back Rule limit extended from 60 days to one full year. |
| 2000 |
Mineral Exploration Tax Credit (METC) announced in the Fall Economic Statement (15% non-refundable credit on eligible flow-through share investments). |
| 2001 |
METC legislation (Bill C-22) receives Royal Assent on June 14. |
Critical Minerals & Policy Shifts (2022–Present)
| Year |
Milestone |
| 2022 |
Budget 2022 introduces the Critical Mineral Exploration Tax Credit (CMETC) at 30%, effective April 7. Fossil fuel phase-out for flow-through shares announced. |
| 2023 |
Fossil fuel phase-out takes effect March 31; oil, gas, and coal exploration expenses can no longer be renounced through flow-through shares. |
| 2024 |
METC extended by one year (to March 31, 2025). Budget proposes expansion of the Critical Minerals list. |
Compiled from: 1994 Evaluation Report (Dept. of Finance), and 1987 Flow-Through Share Financing paper.
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