Opinion of the Court
associated with a national system of taxation. We noted that “[t]he obligation to pay the social security tax initially is not fundamentally different from the obligation to pay income taxes.” 455 U. S., at 260. Based on that premise, we explained that it was untenable to allow individuals to seek exemptions from taxes based on religious objections to particular Government expenditures: “If, for example, a religious adherent believes war is a sin, and if a certain percentage of the federal budget can be identified as devoted to war-related activities, such individuals would have a similarly valid claim to be exempt from paying that percentage of the income tax.” Ibid. We observed that “[t]he tax system could not function if denominations were allowed to challenge the tax system because tax payments were spent in a manner that violates their religious belief.” Ibid.; see O Centro, 546 U. S., at 435.
Lee was a free-exercise, not a RFRA, case, but if the issue in Lee were analyzed under the RFRA framework, the fundamental point would be that there simply is no less restrictive alternative to the categorical requirement to pay taxes. Because of the enormous variety of government expenditures funded by tax dollars, allowing taxpayers to withhold a portion of their tax obligations on religious grounds would lead to chaos. Recognizing exemptions from the contraceptive mandate is very different. ACA does not create a large national pool of tax revenue for use in purchasing healthcare coverage. Rather, individual employers like the plaintiffs purchase insurance for their own employees. And contrary to the principal dissent’s characterization, the employers’ contributions do not necessarily funnel into “undifferentiated funds.” Post, at 23. The accommodation established by HHS requires issuers to have a mechanism by which to “segregate premium revenue collected from the eligible organization from the monies used to provide payments for contraceptive services.” 45 CFR §147.131(c)(2)(ii).
