Traditionally, the king was expected to survive from the revenues generated from the royal domain, but fiscal necessity, especially in times of war, led the kings to enact "exceptional" taxes, like the taille, upon the whole of the kingdom (the taille became permanent in 1439).
Tradicionalmente, esperábase que o rei mantivera as súas necesidades vitais a partir das rendas xeradas polo dominio real, pero as necesidades fiscais, especialmente en tempos de guerra, levaron aos reis a promulgar impostos "especiais", como a taille, sobre a totalidade do Reino (a taille fíxose permanente en 1439).