What this tool does
WhenIsMyCheck applies the standard Social Security and SSI payment rules to help visitors find dates, compare groups and save a calendar. It cannot check whether an individual claim has been approved or a deposit has been issued.
Which calendars are checked
The 2026 and 2027 schedules have been compared with SSA Publication 05-10031, including holiday shifts. The full 2028 schedule is calculated from current rules and OPM observed federal holidays; it has not been independently verified against an official 2028 publication.
How the dates are calculated
- Determine the rule: SSI on the 1st, Social Security on the 3rd, or the 2nd, 3rd or 4th Wednesday.
- Move a weekend or federal holiday to the preceding business day. Include adjacent-year holidays at New Year.
- Keep schedule month and deposit month separate. SSI paid early for January can appear in the preceding December.
- Check the calculated dates against published SSA calendars before labeling a year as verified.
Individual exceptions
SSA may assign a different rule in an individual case. One-time payments, back pay, state supplements and benefit interruptions are outside this standard monthly calculator. Follow your SSA notice for your own case.
Publication and corrections
Static tables and the calculator use one date engine. Schedule pages are built from the date dataset with automated checks. The redesign and checking tools were prepared with AI assistance; no specialist qualifications are claimed. Corrections can be reported to support@whenismycheck.com. Schedule review date: October 5, 2026.