Canada

Giving it only to the poor, it is a charity intended to help people who are unable to support themselves.

It's also close to what we have now. If we start picking and choosing it just comes back to the current system. Wealth needs redistribution of massive orders to have an equitable society. Isn't it wild that MSFT is one of the richest companies because they ripped off Xerox in the 80s? They're not Canadian, but bad actors are rewarded far too frequently under our current system.

So let's also remove all tax deductions too, maybe carve out a system we find neccessary for society but take the tax off applied at purchase. If we feel they are needed so the product is cheaper from the consumer (ie. pharmacy drugs, textbooks, tuition, etc.), maybe even put the burden on the seller to collect the taxes at the end of the tax period. If they sell 100 textbooks at $200, and we give them to the students at like $180, then maybe the seller can recoup the difference quarterly during their tax time. This would make doing taxes easier for consumer, easier to audit for CRA as instead of potentially everyone having textbooks and having to validate you just need to make sure textbook sellers are claiming the textbook rebates.

To go even further (which I think could be necessary with rich people getting play money under UBI, or they'd squirrel it away), be done with church tax-exempt status, non-profits, donations, investment losses as reducing tax burden, otherwise it's very easy to screw the system. If you feel strongly for a non-profit, then donate! I wouldn't discourage that. But the tingly feeling you get in your heart should be it's own reward, we shouldn't have had a financial incentive. It makes the whole thing perverse IMO.