TPC estimates that economic growth from the One Big Beautiful Bill Act (OBBBA), as passed by the House, would offset less than 10 percent of its $2.3 trillion net cost. The bill’s policies, macroeconomic effects, and interest costs would increase federal debt by $3.0 trillion, or 7 percent of gross domestic product (GDP), by 2034. Within 25 years, these higher deficits would lead to a decline in GDP.