Even if your business income is low, be sure to claim all your business-related expenses. Any business loss can be carried back 3 years or forward 20 years. Those earlier or later returns can then be reassessed to include the business loss, and you could get an additional refund.
Why should you consider buying into an RRSP’s (Registered Retirement Savings Plan)?
It is a great way to save on taxes!
Remember, this program is a tax deferral program, meaning that when you withdraw the funds at a later date, it is expected that you will be in a lower tax bracket. Once your money is in the plan, it can grow and grow (thank you compound interest!), and again, you will only pay tax on the funds as you withdraw them.