The payment date for Supplemental Security Income is the first day of each month, according to the Social Security Administration. If the first falls on a weekend or legal holiday, payment is made on the banking day before, according to DisabilitySecrets.com.
For example, if the first falls on a Saturday, payment is made on the Friday before.
The Social Security Administration stopped mailing checks to most Supplemental Security Income and Social Security recipients in March 2013, according to the Huffington Post. Payments are now made by direct deposit, loaded to a debit card or paid through an electronic transfer account. If the funds are not deposited when they should be, the Social Security Administration recommends calling 800-772-1213 immediately.