How to register eldorado.gg income? Please advise

Hello,

Question about what to do with VMI? Everyone advises to ignore it, says that no one catches and will not catch…. Really

Underage brother buys Minecraft stuff with crypto on Discord. They are sold through eldorado.gg (Lithuanian company), but asked for my passport and personal code for registration (I guess according to the DAC7 directive).

The average price of a product is about 10 euros, about 50-100 products per month. About 20% profit margin.

But suddenly I realized that it is my responsibility to declare VMI and pay taxes. The problem is that there is only Eldorado sales documentation, and there is no (and will not be) purchase documentation, so justifying 80% of income as expenses can be difficult. But if you pay individual activity taxes (with the 30% rule) without writing off the expenses, you will not get any profit from the activity (with individual activities it is like about 22-25% de facto taxes)

But the guy is a businessman, you don’t want to restrict his activities, I would say let him learn to do business, but you don’t want to get into trouble

Thoughts? What to do? Close account and activity? Accept ~100% de facto profit tax (with current margin)?