You pay CPP every year but depending on what your taxable income is there is minimum at which no CPP is payable. Yes you pay both parts but there is also relief where part of it is taken off at another part on the form. You do not pay EI ever unless you elect to do this and apply for it. Most do not as the only time you can use it is for mat leaves or similar not times of no income.

You can incur a loss on your business based on expenditures especially in the first year and that brings your income down to a negative number so you then operate with a taxable income of zero throughout the form. Your business use of home expenses can not be used to bring you down past zero so you do carry those over to the next year. There is a way to carry them over. Alternately anything not needed to bring your income down to zero in the first year can be saved and applied to another year - basically what is happening is that anything you buy before you open are your personal purchases. At the time you open your daycare you in effect sell those items to your daycare at cost so that they become a daycare deduction. If you didn't need all of the items for the first year " sell" them to yourself for the second year and claim anything that was not needed for the first year.

I do my book keeping and tax prep myself but have had a lot of advice along the way.