The Dreamers won’t come cheap.

Letting people who came to the US illegally as children remain in the country lawfully would cost taxpayers $25.9 billion over the next 10 years, the Congressional Budget Office estimates.

Many of those who benefited from the Obama administration’s Deferred Action for Childhood Arrivals, or DACA, program will be eliglble for Medicaid, food stamps, education funding, and other programs, the agency said in a report Friday.

The outlay would total $26.8 billion over the next decade — but the estimated 3.25 million dreamers would contribute only $0.9 billion to the tab, the CBO said.

Trump earlier this year announced plans to axe DACA, which President Barack Obama instituted as an executive order.

Trump president has urged Congress to pass legislation that would reinstate the protections.