Security requires a partnership between two parties; in this case, the Canada Revenue Agency and you, the electronic filer.
We permit only approved participants to electronically file income tax returns.
Personal and financial information must be transmitted to us in an encrypted format. Encryption is a way of encoding information before it is transmitted over the Internet. This ensures that no unauthorized party can alter or view the data.
We also ensure that all personal and financial information is stored securely in our computers. We use state-of-the-art encryption technology and sophisticated security techniques to protect this site at all times.
We have made every possible effort to ensure the safety and integrity of transactions on our Web site. However, the Internet is a public network and, as a result, is outside our control.
If you want to transmit your clients' returns electronically, you must first register or renew on an annual basis your participation in EFILE with the CRA. Once the application or the renewal has been accepted, a confirmation page will display an EFILE number and password. These two pieces of identification make up an electronic signature required to access our confidential areas and services.
You also have to use approved security protocols to access our site. Data from your computer must be encrypted before being sent. This changes your data into a format that can be safely transmitted over the Internet. Once the data is encrypted, it cannot be read until it reaches its destination and is decrypted, using an encryption key.
In simple terms, the information from your tax return is broken down into small packages of information called packets, and Transport Layer Security (TLS) encrypts each packet. These encrypted packets are sent into the Internet separately, like pieces of a puzzle, each individually addressed. Once they've all reached the safety of our secure Web server, they're reassembled and decrypted.
As an electronic filer, you can help ensure your clients' income tax information remains confidential: