Determining the appropriate bankroll size to earn a consistent monthly income of $2,000 playing online tournament poker depends on several factors, including your skill level, the stakes you're playing, your win rate, and the variance associated with tournament play. To calculate your bankroll requirements, you should consider the average buy-ins of the tournaments you plan to play. A common guideline is to have 100 to 200 buy-ins for the stakes you're playing. Your win rate, which is the average amount you earn from tournaments per buy-in, is a critical factor. Professional players typically have win rates between 10% to 20% of their buy-ins. Let's assume a conservative win rate of 10%. To calculate your required bankroll, you can use the formula: Bankroll = Monthly Income Goal / Win Rate. Bankroll = $2,000 / 0.10 (10% win rate) = $20,000. So, based on these estimates, to consistently earn $2,000 per month with a 10% win rate and an average buy-in of $10, you would ideally want a bankroll of around $20,000. It's also important to note that tournament poker can have significant variance due to the large field sizes and the fact that only a small percentage of players cash in each tournament. This makes proper bankroll management even more critical to handle downswings.