chariot
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Salo Serfati and the arithmetic of giving
A tenth of his income, a spreadsheet, and a question about where the money goes. How Salo Serfati turned a personal giving practice into Chariot, then began asking what happens after a donation arrives.
Salomon Serfati
Salomon Serfati is the co-founder and CEO of Chariot, the New York fintech building payment rails for the $326 billion donor-advised fund market. Its flagship product, DAFpay, turned the clunky multi-step process of donating from a DAF into a three-click checkout button now live on over 100,000 nonprofit donation forms, from the American Cancer Society to GoFundMe, and was named one of TIME's Best Inventions of 2025. A University of Pennsylvania computer scientist and former BlackRock engineer who opened a separate 10%-of-income charity account with his first paycheck, Serfati turned a personal tithing habit into financial infrastructure for giving.