The Revitalizing Investment, Savings, and Entrepreneurship Act (RISE Act) would cap the federal tax rate on adjusted net capital gains at 15 percent. The bill amends the Internal Revenue Code so that, for taxable years beginning after enactment, the portion of adjusted net capital gains that exceeds the base amount taxed under the existing mechanism would be taxed at 15 percent. In effect, this change is intended to prevent capital gains from being taxed at rates higher than 15%, altering the current gradual structure of long-term capital gains tax rates. The proposal is focused specifically on capital gains and does not outline broader changes to other tax brackets or related taxes (e.g., Net Investment Income Tax), at least in the text provided. Key aspects: it modifies Section 1(h)(1) of the Code, replacing certain subparagraphs and rewriting how the tax on adjusted net capital gain is calculated, with an effective date applying to years after enactment. The bill is sponsored in the House by Mr. Hill (AR) and Mr. Steube and referred to the Ways and Means Committee.