What Is Basic Allowance for Housing (BAH)?

Basic Allowance for Housing (BAH) is a tax-free monthly housing allowance paid to service members who do not live in government-provided housing. BAH is designed to cover approximately 95% of median local housing costs for your pay grade and dependency status. It is one of the most significant components of military compensation — often worth $1,000–$3,000+ per month depending on location.

How BAH Is Calculated

BAH is based on three factors:

  1. Duty station ZIP code — The local housing market, not where you live. Rates in high-cost areas (San Diego, Washington DC, Honolulu) are dramatically higher than rural duty stations.
  2. Pay grade — Higher-ranking service members receive higher BAH because the median housing cost data reflects the type of housing typical for that grade.
  3. Dependency status — Members with dependents (spouse, children) receive With Dependent (BAH-W) rates, which are higher than Without Dependent (BAH-S) rates.

BAH rates are set annually by DoD's Defense Travel Management Office (DTMO) using local housing cost surveys. DoD policy guarantees that rates never decrease from one year to the next — this is called "rate protection."

BAH With vs. Without Dependents

The BAH-W (with dependents) rate is typically 15–25% higher than BAH-S (without dependents) for the same grade and location. You qualify for BAH-W if you have a dependent spouse, dependent child, or other qualifying dependent. A single service member living off post receives BAH-S at the Without rate.

BAH Rate Protection

If your housing area's BAH rate drops in a given year, your personal rate is frozen at the higher amount as long as your pay grade and dependency status don't change. This is called the "hold harmless" provision. If you PCS to a new duty station, your rate resets to whatever the new area's current rate is.

Overseas Housing Allowance (OHA)

Service members stationed overseas receive Overseas Housing Allowance (OHA) instead of BAH. OHA works differently — it reimburses actual housing costs up to a ceiling, plus a utility/recurring maintenance allowance. Unlike BAH, OHA fluctuates with exchange rates and is not "rate protected."

Partial BAH

Service members living in government quarters (barracks, on-post housing) typically receive reduced or no BAH. Single junior enlisted members (E-1 to E-3) in the barracks receive only a small Partial BAH ($100–$250) rather than full BAH. Members in family housing receive no BAH.

How to Look Up Your BAH Rate

Use the official DoD BAH calculator at defensetravel.dod.mil, or use our BAH Calculator for a quick national average estimate by grade.

BAH and Taxes

BAH is completely tax-free — it is not included in your gross income for federal or state income tax purposes. This makes BAH worth significantly more than an equivalent taxable salary increase. A $2,000/month BAH allowance for a service member in the 22% federal tax bracket is equivalent to approximately $2,564/month in gross taxable pay.

What Changes Your BAH Rate?

  • Promotion — Your rate updates immediately when you promote to a new pay grade
  • PCS — Your rate changes to the new duty station's current rate
  • Gaining a dependent — Marriage or birth of a child moves you from BAH-S to BAH-W
  • Losing dependent status — Divorce or dependent age-out may move you to BAH-S
  • Annual rate adjustments — Effective January 1 each year, rates are updated based on DoD housing surveys