Second Lieutenant · Ensign

O1 pay 2026: Second Lieutenant and equivalents

O1 pay in 2026 is $4,150.20 a month for a new second lieutenant or ensign, rising to $5,222.40 after 3 years. A single O-1 at Fort Carson also gets $1,959 BAH and $328.48 BAS; take-home is about $5,590.22 a month with 5% to the TSP.

Military Pay Estimator editorial teamUpdated 6 sources

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O-1 pay lookup

Monthly O-1 basic pay for any year of service, 2026 and projected 2027.

Years of service

O-1 basic pay, 0 years

$4,150.20

a month in 2026 · $49,802 a year

Per paycheck (twice a month)
$2,075.10
Per hour (2,080-hour year)
$23.94
2027 with a 6% raise (projected)
$4,399.21
Monthly increase
$249.01

Basic pay only: BAH, BAS and special pays are on top. 2027 figures apply the January 1, 2027 raise in the President’s alternative pay plan; DFAS publishes the final table in December.

Independent estimate tool. Not affiliated with DoD, DFAS or VA. Your LES, finance office or VA decision letter is the official amount.

O-1 pay chart 2026

O-1 pay has three steps: under 2 years, over 2 and over 3. Most officers are promoted to O-2 after about two years, so few stay on the higher O-1 steps.[co]

O-1 monthly basic pay by years of service, 2026
Years of serviceMonthlyYearlyProjected Jan 2027
2 or less$4,150.20$49,802$4,399.21
Over 2$4,320.00$51,840$4,579.20
Over 3$5,222.40$62,669$5,535.74

Prior-enlisted officers with more than 4 years of enlisted or warrant service are paid as O-1E once they pass 4 years: $5,222.40 a month at over 4 years, versus $5,222.40 for a regular O-1[cofe].

O-1 BAH at major bases

Housing allowance often adds as much as basic pay. 2026 BAH for an O-1 at a sample of installations[bah]:

2026 BAH for O-1, monthly
Housing areaWith dependentsWithout dependents
Colorado Springs, CO$2,376$1,959
San Antonio, TX$1,905$1,584
Fort Sill/Lawton, OK$1,272$1,167
Fort Benning, GA$1,755$1,554
Fort Rucker, AL$1,602$1,305
Patrick Sfb, FL$2,553$2,148
Gulfport, MS$1,614$1,410
Beale AFB, CA$2,994$2,496

Any other duty station: BAH calculator.

O1 take-home pay for a new officer

A single new O-1 at Fort Carson (Colorado Springs), filing single with 5% traditional TSP, takes home about $5,590.22 a month, plus a 5% government TSP contribution under BRS once matching starts. The breakdown: $4,150.20 basic pay, $1,959 BAH, $328.48 BAS, minus $291.46 federal tax, $317.49 FICA, $207.51 TSP and $31 SGLI. Change any input in the military pay estimator.

Commissioning and O1 pay

Officers are commissioned through a service academy, ROTC or officer candidate/training school. Academy cadets and ROTC cadets are paid $1,452.90 a month in 2026 before commissioning[co]. Officers get the lower officer BAS ($328.48) but generally a higher BAH than junior enlisted members at the same base. See does the military pay for college for academy and ROTC benefits.

O-1 rank titles by branch

What O-1 is called in each service
ServiceTitle
ArmySecond Lieutenant
Navy / Coast GuardEnsign
Air Force / Space ForceSecond Lieutenant
Marine CorpsSecond Lieutenant

All of them earn the same pay; see which branch pays the most for where the differences come from, and the full 2026 military pay chart for every grade.

Frequently asked questions

How much does an O1 make?

$4,150.20 a month in basic pay with under 2 years in 2026, or $49,802 a year, plus BAH and $328.48 BAS.

What is O-1E pay?

The higher rate for officers with over 4 years of prior enlisted or warrant service: $5,222.40 a month at over 4 years in 2026.

What raise will an O1 get in 2027?

6% (grades E-6 to O-3) under the President’s plan, about $4,399.21 a month for a new O-1, if Congress does not change it.

Sources

  1. Basic Pay – Officers, effective January 1, 2026 · DFAS, Feb 13, 2026
  2. BAH Rate Lookup and 2026 BAH rate files (all locations, all pay grades, ASCII) · Defense Travel Management Office (DTMO), 2026 rates, checked Nov 13, 2026
  3. Basic Allowance for Subsistence (BAS) rates · DFAS, Dec 19, 2025
  4. H. Doc. 119-189, Alternative Plan for Pay Adjustments … for Members of the Armed Forces in January 2027 · The President, via U.S. Government Publishing Office, Aug 26, 2026
  5. Publication 15-T (2026), Federal Income Tax Withholding Methods · Internal Revenue Service, 2026
  6. Basic Pay – Officers credited with over 4 years of enlisted or warrant service, effective January 1, 2026 · DFAS, Jan 12, 2026