About this entitlement
What you need to know — straight from the regulation
Why BAH is prorated during a PCS
Basic Allowance for Housing (BAH) is paid at a daily equivalent rate (1/30 of the monthly rate). When a service member executes a PCS mid-month, the Defense Joint Military Pay System (DJMS) splits BAH between the losing-duty-station rate and the gaining-duty-station rate based on the actual day the member reports to the new station — not on pay-period boundaries.
BAH based on the losing duty station continues through the day before the member reports to the new duty station; the gaining-station rate begins the day the member reports (DoD FMR Vol. 7A, Chapter 26, para. 10.10.2.1 and Table 26-38).
DoD Financial Management Regulation Vol. 7A, Chapter 26, para. 10.10 & Table 26-38
How the DJMS cutoff affects when you see the change
Per the DFAS 2026 DJMS/AC processing schedules, each pay cycle has a cutoff after which transactions roll to the next payday. Mid-month pay covers the 1st–15th; on the 2026 schedule its cutoff falls between the 3rd and the 8th of the month. End-of-month pay covers the 16th through month-end; its 2026 cutoff falls between the 19th and the 24th.
If your PCS transaction is entered in DJMS after the cutoff, the prorated BAH change will appear on the following LES rather than the current one — which is why many members see the BAH split land one pay cycle after arrival.
DFAS 2026 DJMS/AC Mid-Month and End-of-Month Schedules
OCONUS transitions
When the losing or gaining duty station is OCONUS, the calculation uses Overseas Housing Allowance (OHA) in place of BAH for that leg. OHA reimburses actual rent up to a location- and grade-specific ceiling, plus a monthly Utility and Recurring Maintenance Allowance (DoD FMR Vol. 7A, Ch. 26, para. 6.1.4); members moving between OHA and BAH locations should expect both a pro-rated allowance and a transition through BAH-Transit.
DoD FMR Vol. 7A, Chapter 26 (OHA) · DTMO OHA guidance
Source & references
- Primary source
- Official DTMO 2026 BAH Rate Tables; DFAS 2026 DJMS/AC (Defense Joint Military Pay System) Mid-Month and End-of-Month Schedules — view official publication
- Regulatory reference
- DoD FMR Vol. 7A, Chapter 1, para. 3.2.1 · DoD FMR Vol. 7A, Chapter 26
- Effective date
- January 1, 2026
Military Toolkit is not affiliated with the Department of Defense, DFAS, DTMO, the Department of Veterans Affairs, or any government agency. Rates and rules on this page are pulled directly from the publications cited above. Always verify with your finance office, TMO, or the official rate page before making financial or planning decisions.