A TFSA is an account that provides tax benefits for saving. Investment income, including capital gains and dividends, earning in a TFSA is not taxed in most cases, even when withdrawn. TFSA with substantial gain could be taxed. Contributions to a TFSA are not deductible for income tax purposes, unlike contributions to a Registered Retirement Savings Plan (RRSP). A TFSA may contain cash and/or other investments such as mutual funds, certain stocks, bonds or guaranteed investment certificates (GICs).