A feat tax is an informal term for a feat which provides a static bonus to a frequently used character statistic, particularly attack rolls or defense, that may otherwise scale at an unsatisfactory rate as the character gains levels. Consequently, some players consider it highly disadvantageous not to take the feat. Dungeon masters who share this opinion may institute house rules to grant such feats for free, or ban them from play, or a combination of the two. Others believe math holes can be overcome with player strategy and leader roles instead of feats.