For Canadian digital nomads without a Canadian address, using a P.O. box for filing taxes is a viable option. The Canada Revenue Agency (CRA) allows individuals to use a P.O. box as a mailing address for tax-related correspondence. This can be particularly useful for digital nomads who do not have a fixed residential address in Canada. When filing your taxes, you can provide a P.O. box address for the CRA to send any necessary documents or communications. It's important to ensure that the P.O. box is regularly checked so that you don't miss any important tax notices or updates from the CRA[1].

Citations: [1] https://www.canada.ca/en/revenue-agency/corporate/contact-information/where-mail-your-paper-t1-return.html

Using a friend or family member’s address for tax purposes is also a practical solution. The Canada Revenue Agency (CRA) allows individuals to use an alternative address, such as a friend’s or relative’s, for receiving tax-related correspondence. This can be beneficial for digital nomads who do not have a permanent residence in Canada. By using a friend’s address, you ensure that you receive important documents and communications from the CRA in a timely manner. It is crucial to choose someone reliable who will promptly inform you of any mail received on your behalf.

Citations: [1] https://www.canada.ca/en/revenue-agency/corporate/contact-information/where-mail-your-paper-t1-return.html