BAH Calculator

What BAH actually is

Basic Allowance for Housing is a tax-free monthly payment intended to offset the cost of off-base housing for service members not living in government quarters. It's set by the Department of Defense to cover roughly 95% of typical local housing costs (rent plus utilities) for a service member of your pay grade in your specific Military Housing Area (MHA). The remaining 5% is borne by the member out of pocket — by design, since 2015.

Three things make BAH economically distinct from a comparable civilian housing stipend: it's tax-free at both federal and state levels under 37 U.S.C. § 403, it's rate-protected against decreases in many situations, and it's paid regardless of actual rent — if you find a place that costs less than your BAH, the difference is yours to keep. That last feature is the basis of one of the most common quiet wealth-building strategies in the military.

How DoD calculates BAH — the annual housing survey

Each year, the Defense Travel Management Office (DTMO) commissions a housing cost survey for each of the ~300 Military Housing Areas in the U.S. The survey collects current rent and utility data for the housing types appropriate for each pay grade — typically a 1-bedroom apartment for E-1 to E-4, a 2-bedroom unit for E-5/E-6, a 3-bedroom single-family home for senior enlisted and field-grade officers, and a 4-bedroom for senior officers.

The data then runs through statistical adjustments to produce the published BAH rate for each rank/dependency-status/MHA combination. Survey data lags about a year — the 2026 BAH rates are based on 2025 survey data. New rates publish each January 1.

The implication: BAH rates respond to housing market changes with a one-year delay. Rapidly rising-rent markets feel undercompensated for a year; falling-rent markets see members pocket the difference until the next reset (and rate protection often shields them even then). DoD methodology details: DTMO BAH overview.

The 95% / 5% out-of-pocket structure — and why it changed

From 2005 to 2014, BAH was set to cover 100% of typical local housing costs — zero member out-of-pocket. The FY 2015 NDAA began phasing in member cost-sharing, reaching the current 5% level in 2019. The rationale was budgetary, but the practical effect was a real haircut: a service member whose BAH had previously matched local typical rent now had to either find sub-typical housing or accept a small monthly subsidy gap.

The 5% is calculated against the published target costs for your grade, not against your actual rent. For a senior NCO at a duty station with target costs of $2,400/month, the 5% is $120/month — built into the BAH rate, not deducted from your check. You see the post-haircut rate.

This matters most when comparing BAH against actual rents at high-cost duty stations. A San Diego E-6 with dependents looking at a $4,500/month rental sees BAH at ~$3,800/month — that gap reflects the 5% structural haircut plus the reality that “typical” for that grade may be a 2-bedroom unit, not the 3-bedroom they actually need.

The dependency rate gap

Service members with at least one dependent receive a higher BAH rate at the same grade and location — typically 15-30% more than the without-dependents rate, depending on grade and MHA. The structural reason is the housing-type assumption: with-dependents rates are based on a larger unit type (more bedrooms).

What counts as a dependent: a lawful spouse, biological/adopted/stepchildren under 21 (or 23 if full-time student), and certain incapacitated children. Parents who are dependent on the member for over half their support can also count, with paperwork. Common gotchas: an unmarried partner doesn't qualify regardless of how long the relationship has lasted; pregnancy alone doesn't qualify until the child is born and registered as a dependent.

For dual-military couples without children, only one member can claim BAH-with-dependents (and they'd be claiming each other) — so dual-mil pairs typically each draw the without-dependents rate at their respective duty stations, which is often the better outcome.

Rate protection — the rule that quietly costs people money

Rate protection (sometimes called “individual rate protection”) is the provision that prevents your BAH from decreasing when local rates drop. As long as you remain at the same duty station with the same dependency status, you keep the higher rate even if the published rate falls in subsequent years. Promotions still bump you up; demotions and dependency-status drops still bump you down.

When you LOSE rate protection:

• PCS to a new MHA. You're reset to the current published rate for the new location, regardless of what you were drawing before.
• Dependency status change. Divorce, last child aging out, or losing a custody arrangement can drop you to the without-dependents rate.
• Separation or retirement. BAH stops the day you separate; there's no continuation.

The strategic implication: people who PCS frequently are constantly resetting against current market rates, which can be a haircut in falling markets. People who stay long at one duty station benefit disproportionately from rate protection in falling markets and lose nothing in rising markets (their rate goes up with the new published rate). This is one of the quiet financial advantages of homesteading at a single duty station.

Partial BAH, BAH-RC/T, and OHA — the variants

The standard BAH covered above applies to most active-duty members living off base in CONUS. A few variants:

• Partial BAH — Members assigned to single-type government quarters (junior enlisted in barracks, e.g.) without dependents draw a small partial BAH rate, currently around $50/month. Designed to cover incidental housing costs not provided by quarters.
• BAH-RC/T (Reserve Component / Transit) — A non-locality-adjusted national average rate paid to Reserve and Guard members on short-tour active duty (under 30 days) and to members in transit between duty stations. Substantially lower than locality BAH at most duty stations.
• OHA (Overseas Housing Allowance) — The OCONUS equivalent of BAH. Reimburses actual rent up to a published cap based on location, grade, and dependency status, plus a separate utility/recurring maintenance allowance and a one-time move-in housing allowance. OHA is reimbursement-style (you submit your lease) rather than fixed-amount like BAH.

For most readers, the standard with-dependents or without-dependents BAH rate is the relevant one. The calculator above defaults to it.

High-BAH stations as comp leverage

The duty-station spread in BAH is enormous — at the same rank and dependency status, an E-6 can draw anywhere from ~$1,400/month at the lowest-cost CONUS MHAs to over $4,000/month at high-cost coastal stations. That's a difference of roughly $31,000/year in tax-free total compensation based purely on location.

For service members with assignment flexibility, this is real leverage. A volunteer-only assignment to a high-BAH station meaningfully bumps total comp without affecting base pay. Conversely, an involuntary assignment to a low-BAH location effectively cuts total comp until you PCS again. Career planners and detailers know this; it's often a quiet currency in negotiating future assignments.

The catch: high-BAH usually means high cost of living, so the dollars don't always go further. But because BAH is calibrated to typical local rents and you can choose to live below the median (roommates, longer commute, more efficient unit), aggressive members at high-BAH stations often net real savings. See the military-to-civilian pay calculator to convert your BAH (and base pay, BAS, and special pays) into a single civilian-equivalent salary number.

What this calculator does (and doesn't)

You select a duty location, pay grade, and dependency status — and the calculator returns the current published 2026 BAH rate, the alternate-status rate (with vs. without dependents), and an annualized total. Rates pull directly from the 2026 DoD BAH tables.

What this calculator is not: a guarantee of what you'll receive. Final BAH is set by your finance office based on your verified duty station, grade, and dependency status — not the calculator. For overseas duty (OHA), use the official DTMO BAH rate lookup for OHA-specific tools. For partial BAH and BAH-RC/T scenarios, consult your finance office directly.