What documents and receipts do I need when using Webfile?
You should have all the tax documents you would normally need to prepare your tax return manually on paper or with a commercial software. This includes your information slips and all receipts you intend to submit. If, however, you begin preparing your tax return with Webfile then realize that you are missing certain information, you can always quit and come back later to finish preparing your return. Webfile always saves your data as you proceed through its tax preparation sequence.