Congrua portio is a term in Catholic canon law, meaning the lowest sum proper for the yearly income of a cleric.
To be a proper income in accordance with the dignity of his state, it should likewise be sufficient to enable him to dispense moderate hospitality and almsgiving and supply himself with books, etc.
In determining the congrua, the bishop can not take into consideration emoluments that are uncertain, such as offerings at funerals or marriages, or Mass Stipends; nor what the vicar might earn by his labour; nor what he receives from his patrimony; for these are not fruits of the benefice.
Although, in speaking of the congrua, authors generally limit the question to the inferior clergy, yet all rectors of churches, hence also bishops, are entitled to it.
In many European countries, where church property has passed into the possession of the State, the civil laws have determined the congrua of the clergy more or less liberally.
The salary for rectors of churches in the United States, fixed by plenary or diocesan synods, has nothing in common with the canonical congrua.