This bill amends the Internal Revenue Code to establish a new federal tax credit for individuals making charitable contributions to eligible charter school organizations. Taxpayers can claim a credit equal to 75 percent of qualified contributions , with an annual cap set at the greater of $5,000 or 10 percent of their adjusted gross income. This credit cannot be combined with a charitable deduction for the same donation, and any unused credit may be carried forward for up to five years. An organization qualifies as an eligible charter school organization if it is a 501(c)(3) public charity that is either a charter management organization or a charter school. These organizations must meet specific criteria, such as having received a federal grant for high-quality charter school replication or expansion, or being ranked in the top 10 percent for student performance in their state. They are also required to maintain separate accounts for these contributions and undergo annual independent financial and compliance audits. To ensure proper use of funds, the bill mandates that eligible organizations expend 100 percent of qualified contributions within a defined period, allowing for administrative expenses and a carryover; failure to meet these requirements will disqualify subsequent contributions for the tax credit. The program is subject to a nationwide volume cap of $5 billion in tax credits annually, beginning in 2026, allocated with an initial $10 million per state and the remainder nationally on a first-come, first-serve basis. The Secretary of the Treasury is tasked with tracking credit usage in real-time and can increase the nationwide cap if demand is high. Additionally, the bill emphasizes the organizational and parental autonomy of eligible charter school organizations, ensuring their participation does not subject them to governmental control.