Second, in connection with certification of tax return platforms such as UFile and H&R Block, the Canada Revenue Agency has to make sure that they are not entitled to disclose personal information provided by a taxpayer.
The analysis I have done of the contract offered by UFile clearly tells me that the platform is authorized to disclose all pixels of a taxpayer's information to Google, Meta, and so on, when the taxpayer buys the online software. If a client wants to refuse to allow their information to be transmitted, they must inform UFile. However, nobody is aware of this licensing contract, and nobody is going to ask that this be removed.
In the United States it is the exact opposite. Third parties such as the online platforms are not entitled to disclose information other than with the express permission of the taxpayer.