How do you know when to add height in a jumping program?

Knowing when to add height in a jumping program requires honest assessment of specific readiness indicators rather than following a predetermined timeline or responding to the temptation to progress faster than the horse and rider's genuine development supports. The primary height increase readiness indicators are: the horse jumping the current height confidently and consistently — not merely on good days or with specific supportive conditions, but reliably across different fences, different locations in the arena, and different approaches — over enough repetitions that the confidence is genuinely established rather than superficially present. Confidence is the non-negotiable prerequisite because a horse that is not genuinely confident at the current height will carry that lack of confidence into the next height, where the additional difficulty amplifies rather than resolves the underlying issue. The quality of the jumping technique at the current height is an additional indicator: a horse that is jumping with genuine quality — good bascule, clean legs, consistent distances, smooth landings — is ready for more challenge; one that is producing technically adequate but inconsistent or effortful jumping at the current height needs more time at that height before additional demands are appropriate. The rider's position and effectiveness at the current height is equally relevant: a rider who is struggling to maintain their position or whose aids are inadequate for consistent quality at the current height will struggle more at greater heights, making rider development a parallel requirement alongside horse development. The practical guideline that most experienced trainers follow is to add height when the current height feels easy rather than when it feels manageable — the distinction between easy and manageable is the difference between genuine confidence and the suppression of uncertainty through consistent management that will resurface when height increases add additional stress.