The Social Security Administration is preparing Social Security and Supplemental Security Income checks for October. Here are the payment dates.

In four days, October's Supplemental Security Income payment, worth up to $943, will go out to millions of beneficiaries.

The Social Security Administration (SSA) distributes benefit payments to millions of Americans every month—but given the sheer number of beneficiaries, not everyone is paid on the same date. These benefits include retirement, disability and survivor benefits, with around $1.5 trillion expected to be paid out throughout this year.