That's not how gambling taxes work. You can't claim unlimited losses. Filing as a professional gambler allows you to net your wins and losses, usually defined a

That's not how gambling taxes work. You can't claim unlimited losses. Filing as a professional gambler allows you to net your wins and losses, usually defined as a session of play. If winning is so volatile that you have frequent winning years and significant losing years, then yes it could be a problem since you can't report negative income. I've only heard of winning players having negative years when accepting risk beyond what their bankroll and access to games year-round can over (for example, high high stakes games are not that common).