I have been in crypto 14 months now and yet to cash out any profits but I am just wondering when I do so how the tax works? Do I have to pay that straight away or do I have months after cashing out to pay the taxes on my profits?

At the moment I am just under break even, if my portfolio was to 2x in the coming months for example and I decide to cash out what I put into the market and leave the profit. How does that work?

I want to be ready for when the time comes to cash out and understand how and when I need to pay the taxes.