The Social Security Administration this week sent out an email to many Americans celebrating the passage of President Donald Trump’s domestic policy bill, and touting the measure’s tax relief for seniors, in a move that analysts said strayed from the agency’s typically apolitical nature.

The Social Security Administration reportedly sent out an email claiming the policy bill “eliminates federal income taxes on Social Security benefits for most beneficiaries”—but that’s not true.

An email from the agency praised the bill, but only some recipients will see savings. Here's what the legislation means for seniors.