A tax-efficient mutual fund structure
Because of their potential tax advantages, corporate class funds can be a particularly attractive option for non-registered (taxable) accounts. The key difference between a corporate class mutual fund and a regular mutual fund is that a corporate class fund is part of a larger corporation that holds a number of individual funds. As a shareholder of this corporation, you own shares of the corporate class mutual funds, rather than units (as with a regular mutual fund).
The main benefit of corporate class funds is that the corporation has the flexibility to shift gains and expenses from one fund to the others. This can help ensure that no single fund is saddled with an undue tax burden.