Get a wallet that calculates fiat price at time of calculation and gives capital gain/loss. coinos.io does it for every transaction and supports Lightning + Liquid.
Discussion
There is also a threshold, I think it's $1000 in Canada. So if you can keep your food budget to < $999 per month. I think you're in the clear. Probably want to check with a tax accountant but they aren't necessarily up on the Bitcoin exemptions either.
I am US Latam based, I’ll look more into to. Thanks! 🙏