The CRA offers special tax benefits for purchasing flow through shares, which you should take advantage of to save tax. Flow-through shares are shares in mining, oil and gas, and renewable energy companies whose main business is exploration and development.
These companies transfer, or "flow-through", their resource expenses to the owners of flow-through shares, instead of deducting these expenses themselves. An owner of flow-through shares can deduct the transferred resource expenses on his/her personal tax return. Usually, the resource expenses transferred are the same the amount as the cost of your investment in the flow-through shares.
For example, assume that you reside in Ontario, Canada and have purchased $10,000 of flow through shares in a mining company. Further assume that the mining company transfers resource expenses to you in the amount of $3,000 in the first year, $4,000 in the second year and $3,000 in the third year. As a result, your taxes payable will be reduced by $4,640 (i.e. $10,000 x 46.4% tax rate) over a 3 year period. In addition, you will be entitled to Federal and Ontario tax credits for $1,500 and $500 respectively. The total tax benefits alone amount to $6,640!
Even if the flow through shares don't increase in value, you'll end up with $16,640 (i.e. $10,000 + $6,640), which represents a 66% return on investment.
Note that the prices of flow-through shares can be very volatile, so it's important that you consult with a financial advisor before purchasing such shares.