Nundina › Discover calendars › US Social Security & SSI Payment Dates calendar › Social Security Payment: Birth Dates 21st-31st (December 2026)Social Security Payment: Birth Dates 21st-31st (December 2026)23 December 2026Social Security payment for beneficiaries born on the 21st-31st of the month (paid on the fourth Wednesday).US Social Security & SSI Payment Dates calendarMore from this calendar