Does your country tax gambling winnings and if so do you declare it yourself or does the gambling operator withhold the taxes on your behalf?
I think it makes sense that casinos or other gambling platforms are taxed because they are running a business, but gambling winnings are not really an income because it is not a job.
besides most gamblers gamble secretly anyway so why would they want to file it on their tax fees.
If you are gambling in grey areas, obviously even if you won a huge amount, taxing is never their thing. But if you gamble on big and reputable casinos, and you are making big winnings, expect that your winning funds will be immediately lessen since tax is applied, but small winnings are not actually required to be taxed, only those who have exceeded the target amount.