S. 987 authorizes $108 million over 5 years without sufficient oversight of the taxpayers' money. According to the Congressional Research Service, there is no available, confirmed figure on how much taxpayer funding is already being used to fight child marriage in developing countries and this bill does not address that issue.

In contrast, Ranking Member Ros-Lehtinen has introduced H.R. 6521, which would result in no more than $1 million in potential costs, while making it clear that child marriage is a violation of human rights and that its prevention should be a goal of US foreign policy; requiring the creation of a multi-year strategy; requiring a comprehensive assessment of what the United States is already doing and funding in the effort to fight child marriage; and requiring that the practice of child marriage in other countries be reported each year as part of the annual Human Rights Report.

There are also concerns that funding will be directed to NGOs that promote and perform abortion and efforts to combat child marriage could be usurped as a way to overturn pro-life laws.