The one-paragraph version
Basic Allowance for Housing is money the military pays you each month so you can rent a home near your duty station. If the military gives you a house or a barracks room, you generally do not get it. If you rent or buy on your own, you do. The amount is not the same for everyone, and it is not the same everywhere.
The three things that set your rate
First, your pay grade. The allowance is sized to the housing each rank is expected to need, so it rises as you promote, with the officer table capped at the O-7 rate. Second, your dependent status. There are exactly two columns, with dependents and without, and one dependent draws the same rate as six. Third, your location. Every year the Defense Department surveys rental costs in 366 military housing areas and rebuilds each area's table from that data.
Location is the biggest lever. In the 2026 tables, an E-5 with dependents draws $3,975 a month in San Diego, $3,663 in Honolulu, $3,132 around Washington DC, and $2,163 in Panama City. Same rank, same family, different housing markets.
Why the tax-free part matters
BAH is not subject to federal income tax, and in most states it escapes state income tax as well. That makes each BAH dollar more valuable than a base-pay dollar. Take the San Diego E-5 with-dependents rate of $3,975 a month, which is $47,700 a year (3,975 times 12). A service member in the 22 percent federal bracket would need about $61,154 in taxable pay to take home the same amount (47,700 divided by 0.78). When people compare military and civilian compensation, forgetting the tax treatment understates BAH by roughly a quarter.
What it is designed to cover
BAH is calibrated to local median rental housing costs, including utilities, for housing appropriate to each pay grade. It is an allowance toward housing, not a reimbursement of your actual rent: if your rent is lower than your BAH, you keep the difference, and if it is higher, you cover the gap. That is why shopping under your rate is one of the simplest ways to stretch military pay.
Common BAH mistakes to avoid
Mistake one is assuming the rate follows you. It follows your duty station, so after a PCS your BAH changes to the new area's table on the effective date of the move, even if your lease starts later. Mistake two is stale dependency status: members who marry, divorce, or have a child and never update their records can be paid at the wrong column for months, and overpayments get collected back from future pay. Mistake three is ignoring the January reset. The new tables can move your rate in either direction, and rate protection only helps if you were already stationed there when the new table published.
Find your number
Understanding the system is step one; your exact rate is step two. The free BAH calculator looks up the official 2026 rates by pay grade, dependents, and location, and its reverse mode shows what share of any rent your BAH covers. If you want the current year's tables in detail, read our 2026 BAH rates guide.