I'm surprised not everyone knows about this already.
The government hates cash because it's hard for them to track and they want full details on how you earn and use your money. It's not just about taxes but that's one aspect. They want control, obviously.
You aren't going to get in trouble for depositing $10k or more but the government will get flagged that you did. Truthfully, if you're using a bank especially in Canada then the government is tracking you or could if they wanted to.
Use crypto as much as you can.
If you have cash, it's better to use it for your daily spending.
