Billionaires Michael and Susan Dell pledged $6.25 billion Tuesday to provide 25 million American children under 10 an incentive to claim the new investment accounts for children created as part of President Donald Trump’s tax and spending legislation.

The historic gift has little precedent, with few single charitable commitments in the past 25 years exceeding $1 billion, much less multiple billions. Announced on GivingTuesday, the Dells believe it’s the largest single private commitment made to U.S. children.

Its structure is also unusual. Essentially, it builds on the “ Trump Accounts " program, where the U.S. Department of the Treasury will deposit $1,000 into investment accounts set up by Treasury for American children born between Jan. 1, 2025 and Dec. 31, 2028. The Dells’ gift will use the “Trump Accounts” infrastructure to give $250 to each qualified child under 10.

Though the “Trump Accounts” became law as part of the president’s signature legislation in July, the Dells say the accounts will not launch until July 4, 2026. Michael Dell said they wanted to mark the 250th anniversary of U.S. independence.

“We want these kids to know that not only do their families care, but their communities care, their government, their country cares about them,” said Susan Dell. “And we’re all rooting for them to have a wonderful future, a bright future, and that that’s available to them.”

Under the new law, “Trump Accounts” are available to any American child under 18 with a Social Security number and their families can fund the accounts, which must be invested in an index fund that tracks the overall stock market. When the children turn 18, they can withdraw the funds to put toward their education, to buy a home or to start a business.

The Dells will put money into the accounts of children 10 and younger who live in ZIP codes with a median family income of $150,000 or less and who won’t get the $1,000 seed money from the Treasury. The Dells hope their gift will encourage families to claim the accounts and deposit more money into it, even small amounts, so it will grow over time along with the stock market.

President Trump plans to celebrate the commitment later on Tuesday and a White House spokesperson Kush Desai said the Dell’s gift will be the first of many new pledges to fund the accounts.

Through the Michael & Susan Dell Foundation, the Dell’s have reported giving $2.9 billion since 1999, with a large focus on education.

Michael Dell said they had not initially envisioned committing so much to boost the child investment accounts, but Susan Dell said over time, they decided to increase the size of their commitment.

While the funds in the Trump Accounts may help young adults whose families or employers can contribute to them over time, they won’t immediately help to diminish childhood poverty. Cuts to Medicaid, food stamps and child care that were also included in the spending package are likely to reduce the support children from low-income families receive.