Yes, taxomate supports amazon.ca! By connecting amazon.ca with taxomate, you can easily compile all of your Amazon Amazon transactions into one invoice for easy matching with payments you receive from Amazon in your accounting system (e.g., QuickBooks, Xero, Wave).
We recently released a tool to assist Amazon.ca sellers with dividing up their sales and taxes by province. Our system allows you to map by the Canadian provincial jurisdiction designated by the Amazon sales tax system.
If you are willing to help us test this feature, you will have FREE access to the length of our public beta. Please contact us using the the chat button on the bottom right if you are interesting in testing.