File information returns electronically (tax slips and summaries)

Important Notice: Update to XML File Validation

Effective October 20, a new validation has been introduced. To prevent your submission from being rejected, please remove all optional fields without values from your XML file.

When and how to file, original, amended and canceled information slips electronically (for example, T4, T4A, T5, and other type of returns), including how to use Web Forms.

Filing electronically lets you:

• Get confirmation within minutes
• File securely
• Make changes
• Allow another authorized source, such as a tax preparer, to file for you
• Send returns for the previous ten years