Hi there,
We're glad to have you join the QuickBooks family! I'd be happy to assist you with figuring out why only 1 month of income is showing on your HST return.
It's important to make sure your taxes are correct in QBO. Sage uses 2 accounts (4 in Québec) to track Sales Tax and post-migration steps to consolidate sales tax into the single GST/HST Payable account in QuickBooks are required. Please follow the steps given in this video which shows you how to clean up the sales tax. Here's the link to the video: Clean up sales tax.
There's an insightful article from our Community which I encourage you to check out. The article has more info on what happens when you convert your data. Check it out here: Post conversion checks for getting started with QuickBooks Online. Let me know if this helps. In case you have other questions, feel free to contact our support team using this link here.
