Federal holidays and weekends introduce compound calendar shifts into military banking routines. Because the Federal Reserve halts ACH processing on designated legal public holidays, the transmission pipeline shuts down completely on those dates.
Consider a cycle where the 1st of the month falls on a Monday, and that Monday happens to be an official holiday. DFAS adjusts its standard pay date back to Friday. For an Everyday Checking account holder, the deposit posts on Friday morning. For an Active Duty Checking holder, the "one business day prior" rule pushes the release back to Thursday morning.
If the 1st of the month falls on a Sunday, DFAS moves payment to Friday the 30th. Active Duty Checking accounts then post on Thursday the 29th. However, if a regular federal holiday occupies Thursday, the direct deposit releases on Wednesday. These compounding shifts explain why military pay dates frequently deviate from the apparent mid-month or end-of-month dates printed on service contracts.
