Awsome post and a good question

Can you now just keep your money in crypto and use one of the Credit cards like TenX to withdraw money?

After all, no one knows how much crypto you really have, obviously this would only work to a set price point you can just go out and start buying mansions and Lambo without the government asked where the hell did you get all that cash from without paying any tax on it.

you could claim it as gambling winning as they are tax-free in the UK is you wanted to be really sneaky about it you could use a TenX credit card to top up a gambling site like Bet365 and then withdraw the cash into your bank as winning, or use their bet365 debit card to withdraw the cash

You may get away with this on smaller amount, but you know what the government are like and you could face a hefty fine and even jail for tax evasion if they think you are on the fly