For months, the Trump Accounts program has been a headline waiting for concrete details. Now those details are here.

On July 1, 2026, the Treasury Department announced the investment lineup for the accounts, locking in exactly where funds will go once contributions open on July 4. A day earlier, chipmaker Micron committed $250 million to the program. The IRS reports that millions of children have already been signed up before a single dollar has been deposited.

This is what a policy looks like when it stops being a slogan and starts being an account with a ticker symbol attached. Starting with the investment plumbing, Treasury states every contribution at launch will default into SPYM, a State Street S&P 500 ETF chosen for broad exposure to the U.S. stock market. This choice keeps expenses well below statutory fee limits while placing account money into a broad-market fund from day one. The agency also selected IVV, VTI, SPTM, and ITOT as additional low-cost options for parents or guardians once the account-allocation tool becomes available—but until that tool goes live, all launch contributions remain in the default fund.

The design is intentionally simple: broad-market index funds, minimal fees, and a default allocation that ensures money works instead of sitting idle. On June 30, Micron announced its $250 million investment in Trump Accounts, also known as 530A Accounts. The company described it as the largest corporate commitment of its kind and stated it expects to support up to one million children. This plan includes employee matching up to $1,000 per child under 18, one-time $250 seed deposits for children in communities where Micron operates (Idaho, New York, Virginia, California, Colorado, Minnesota, and Texas), and a broader tie-in to its over $200 billion U.S. memory manufacturing and R&D investment—which it claims will create more than 90,000 American jobs.

The key caveat is that this targeted funding applies only to Micron workers and eligible communities, not as a blanket payment to every child in the country. This detail highlights a significant divergence from Washington’s usual narratives: manufacturing jobs and equity ownership are landing in the same zip codes.

In March, the IRS reported over 4 million children had been signed up for tax-favored accounts through Form 4547 elections submitted with individual tax returns. More than one million children were covered by elections for the $1,000 federal pilot contribution created under the One Big Beautiful Bill. This pilot applies to eligible U.S. citizen children born between January 1, 2025 and December 31, 2028 with valid Social Security numbers.

Contributions from parents, relatives, friends, employers, state governments, philanthropic organizations, and individuals can begin July 4, subject to annual limits. Treasury and the IRS also addressed a practical hurdle by issuing a gift tax reporting safe harbor for certain individual donor contributions on June 29, reducing filing friction for grandparents, relatives, and friends who wish to contribute.

Putting these pieces together, the July 4 launch stops looking symbolic. The investment lineup is named, the first major corporate commitment is secured, the filing rules are streamlined, and millions of accounts are already open. Trump Accounts are no longer a promise on paper—they will be a working way for American families to start building ownership from day one.