A federal court of appeals recently upheld the constitutionality of the ministerial housing allowance. The Seventh Circuit Court of Appeals in Chicago ruled unanimously that the sixty-five year old tax provision does not violate the First Amendment clause that prohibits government establishment of religion. The decision reversed a federal judge’s 2017 opinion that invalidated the allowance as a violation of the establishment clause.

The court ruled the housing allowance is constitutional under two of the U.S. Supreme Court’s church-state precedents. The allowance, the judges said, “falls into the play between the joints of the Free Exercise Clause and the Establishment Clause: manded by the former, nor proscribed by the latter.”

Aside from the question of constitutionality, the clergy exemption raises a question that many people—whether religious or not—are likely to be wondering: Why exactly do ministers receive a tax exemption for their housing allowance?

To answer the question we must first consider how taxation of church property, including clergy housing, has historically been considered.

Since at least the time when Joseph served in Pharaoh’s Egypt, religious property has been exempt from certain forms of taxation. (Genesis 47:26) The practice continued in the Roman Empire and through medieval Europe and was part of mon law, which America adopted from England. mon law granted tax exemptions to established churches and, through the equity law tradition, to all churches. From the 15th century to the 19th century, most pastors lived in the parsonage, a house provided by the church. Housing was thus a form of non-cash payment that was exempt from taxation since the parsonage was church property.

By the early twentieth century, though, both clergy housing and taxation had changed considerably. So in 1921, Congress passed the Revenue Act, which exempted from the gross e of ministers the rental value of any “dwelling house and appurtenances thereof” provided by a church as a part of pensation. This parsonage exemption, however, applied only to ministers who lived on property owned by their church and disadvantaged ministers whose churches provided a housing allowance rather than a church-owned parsonage. In 1954, Congress amended the tax code to allow ministers to exempt a portion of their e to the extent used by the minister for housing. According to the Senate Report, the purpose of this addition was to eliminate the disparity in the tax code between ministers who lived in a church-owned parsonage and those who were given a stipend with which to secure housing.

The clergy, of course, are not the only ones to receive such an exemption. Congress included several categories of tax-free housing allowances to demonstrate a willingness to give tax breaks to classes of taxpayers who have little choice about their personal living space, such as members of the military, members of the Peace Corps, members of the Foreign Service, etc. As Peter J. Reilly explains,

Whether the employer provides a cash allowance or a home, each benefit serves the same purpose; that is, often the employer’s needs affect the living space needs of its employees. Many times, these classes of employees frequently relocate, thus preventing them from settling down and hindering long term close friendships. Further, the employers frequently require them to use their homes to conduct employer business. Additionally, the employee’s place of service may not be desirable. These employees must reside where their employer requires and must frequently use their residence for employer business. Some employees sacrifice amenities that most citizens take for granted, such as long term stability in one locale and privacy.

The constitutionality of the parsonage exemption would be difficult to challenge since it has been encoded in statutory law for over almost a hundred years. That is why critics of clergy exemptions have focused on the housing allowance.

The obvious counter might appear to be for churches to simply buy a parsonage and directly provide housing for their ministers. But this ignores the fact there may be theological reasons based on church polity for not providing a parsonage. As Justin Butterfield, Hiram Sasser, and Reed Smith explain in an article for The Texas Review of Law and Politics, a “congregation’s choice to offer a housing allowance rather than allow the minister to live in a church-owned dwelling is not one of mere accounting or convenience, but rather one rich with theological and ecclesiastical underpinnings.”

The parsonage exemption, for instance, provides a preference for institutional churches whose ecclesiastical properties are owned by a central governing body (e.g., Roman Catholic). Smaller, independent, local churches often have less money to provide a parsonage. It also presents a bias in favor of wealthy, established churches over younger congregations and church startups. For instance, how could a congregation that can’t even afford a church building afford to buy a parsonage?

Because of this reality, the courts cannot allow the parsonage exemption and exclude the housing exemption without showing preference for certain religious groups over others.

Both the parsonage and pastor housing exemption are part of a legal tradition that serve to prevent the entanglement of the state in ecclesiological concerns. That’s an ideal even atheists should support.