US SB1718

Creates tax-exempt "Invest America accounts" as trusts for individual beneficiaries, with contributions limited to $5,000 per year in cash, adjusted for inflation after 2026

Restricts account investments to mutual funds or ETFs that track the S&P 500 index, with no distributions allowed until the beneficiary reaches age 18

Provides a $1,000 federal contribution to accounts for U.S. citizens born after July 4, 2026, if at least one parent is a U.S. citizen at time of birth

Taxes distributions at capital gains rates rather than ordinary income rates, and imposes a 6% excise tax on excess contributions above the annual limit

Requires Treasury Secretary to automatically establish accounts for eligible individuals who don't have one, selecting providers based on low fees and investment performance