The Social Security Administration, or SSA, publishes an annual document called the Social Security Statistical Supplement. This contains a lot of information about the Social Security program (it's over 500 pages long),

Social Security's payment schedule is normal in April, but recipients who get Supplemental Security Income benefits will get two checks in May.

Social Security has established the 2025 payment schedule, which follows traditional benefit distribution rules. Supplemental Security Income (SSI) benefits are paid on the first day of each month. However,