BAS Calculator
All enlisted grades (E-1 through E-9) receive the same rate. All officer grades (O-1 through O-10) receive the same (lower) rate.
Select the rate year. Rates are published annually by the DoD on January 1.
Use Partial Month for your first or last month of active duty, or any month where your entitlement begins or ends mid-month.
Select Your Pay Category
Choose Enlisted or Officer and your rate year to instantly see your BAS entitlement. Use Partial Month mode to prorate BAS for a month you entered or left active duty.
How to Use This Calculator
Select Your Pay Category
Choose Enlisted if you are an E-1 through E-9 in any branch, or Officer if you hold a commissioned officer grade (O-1 through O-10, including warrant officers). BAS does not differ by specific rank — all enlisted get the same rate, all officers get the same (lower) rate.
Choose the Rate Year
Select the applicable calendar year. The default is 2025 (the current rate year). Use historical years to look up past BAS entitlements for tax filing, records review, or comparison purposes. Rates are published on January 1 each year.
Select Full Month or Partial Month
For most months, select Full Month to see your standard monthly BAS. If you entered or left active duty mid-month, switch to Partial Month, select the calendar month, and enter the exact number of days you were entitled to BAS. The calculator will prorate your payment automatically.
Review Your Results and Export
Your monthly BAS, annual total, daily rate, and prorated amount (if applicable) appear in the results panel. Use the charts to compare enlisted vs. officer rates and review BAS rate history. Export to CSV or print for your records, LES verification, or financial planning.
Frequently Asked Questions
What is the BAS rate for 2025?
For 2025, the BAS rate is $460.49 per month for enlisted service members and $316.98 per month for officers. These rates took effect on January 1, 2025, representing a 1.75% increase from the 2024 rates. The rates are identical across all military branches — Army, Navy, Marine Corps, Air Force, Space Force, and Coast Guard — and do not vary by pay grade within each category. Every E-1 receives the same BAS as an E-9, and every O-1 receives the same BAS as an O-10. BAS rates are set annually by the Department of Defense based on changes in the USDA food cost index.
Does BAS increase if I have dependents?
No. BAS does not increase based on the number of dependents. BAS is designed to cover the subsistence costs of the service member only — it is explicitly not intended to feed family members. This is one of the key differences between BAS and BAH. While BAH pays a significantly higher amount for members with dependents versus without, BAS remains the same flat rate regardless of whether you are single, married, or have ten children. Family food costs are expected to be covered through a combination of base pay, the Family Subsistence Supplemental Allowance (FSSA) for lower-income military families, and commissary access.
Why do officers receive less BAS than enlisted members?
Officers receive a lower BAS rate than enlisted members — $316.98 versus $460.49 in 2025 — because military compensation was historically structured so that officers, who receive significantly higher base pay, were expected to use a portion of that base pay for their meals. The differential between enlisted and officer BAS has been maintained as a structural feature of the military pay system for decades. The officer BAS rate is approximately 69% of the enlisted rate. Despite being lower, officer BAS is still entirely tax-free and represents a meaningful component of total officer compensation, worth over $3,800 annually.
How is BAS prorated for a partial month?
BAS proration is calculated by dividing the monthly BAS rate by the total number of days in the calendar month, then multiplying by the number of days you were entitled to receive BAS. For example, if an enlisted member enters active duty on January 20, 2025, they are entitled to 12 days of BAS in January. The daily rate would be $460.49 ÷ 31 = $14.87 per day. Prorated BAS = $14.87 × 12 = $178.44. Proration applies to your first and last months of active duty service, and can also apply during certain administrative actions or changes in duty status.
Does BAS continue during deployment?
Yes, BAS generally continues during deployment. Service members deployed overseas or in a combat zone continue to receive BAS. In some deployments where government meals are provided (such as on a ship or at a base with mandatory dining facility use), the branch may assess a meal deduction against BAS — however, this can be waived in combat zones. In addition, service members in designated combat zones may qualify for Combat Zone Tax Exclusion (CZTE), which exempts their entire military pay (including base pay) from federal income tax — though BAS is already tax-free regardless of CZTE status.
Is BAS included in my Thrift Savings Plan (TSP) contribution calculation?
No. BAS is an allowance, not pay, so it is not included in the base used for Thrift Savings Plan (TSP) contribution calculations. TSP contributions are calculated as a percentage of basic pay only — BAS and BAH are excluded. This is an important distinction for service members maximizing retirement savings. Your basic pay is the taxable portion of your compensation; BAS and BAH are tax-free allowances that supplement it. When estimating your total military compensation for financial planning, you should count BAS and BAH as additional tax-free income separate from your TSP-eligible base pay.