A TFSA is a new way for residents of Canada to set money aside, tax-free, throughout their lifetimes. Contributions to a TFSA and the interest on money borrowed to invest in a TFSA are not tax deductible. The income generated in the TFSA is tax-free when withdrawn. The maximum amount...
The WITB is a refundable tax credit intended to provide tax relief for eligible working low income individuals and families who are already in the workforce and to encourage other Canadians to enter the workforce.
There are federal and provincial refundable tax credits which are payable to you even if you have no earnings and have paid no tax. This includes the Working Income Tax Benefit.
losses in an RRSP cannot be claimed as a deduction. However, because you have a lower amount of funds for withdrawal from, you will be taxed less.