A number of items in Questions and Answers further
elaborate this law. The payment of Huqúqu’lláh is based on
the calculation of the value of the individual’s possessions. If
a person has possessions equal in value to at least nineteen
mi
thqáls of gold (Q and A 8), it is a spiritual obligation to
pay nineteen percent of the total amount, once only,
as Huqúqu’lláh (Q and A 89). Thereafter, whenever one’s
income, after all expenses have been paid, increases the
value of one’s possessions by the amount of at least nineteen
mi
thqáls of gold, one is to pay nineteen percent of this
increase, and so on for each further increase (Q and A 8, 90).