What a relief to learn something about HST filing for my online business. I was supposed to file my late June PST tax for my online business and I was asked to call the HST department instead.
Then I learned that I don't have to file a monthly HST Tax unless my business is making about $30,000.00 per year which is obviously not aaplicable for my online business.
So all I have to do is file my business income tax together with my personal income tax return. I just have to print the T2124 which I can get at www.cra.gc.ca and file it together with my personal income tax return form at the end of the year.