Officer Tools · Service Obligations
ADSO Calculator
Stack your Active Duty Service Obligations — commissioning source, BRADSO, bonuses, and training commitments — to see your real separation-eligible date. The obligation most officers don't calculate until it's too late.
Why this matters
A 4-year scholarship officer who accepts BRADSO (+3 years), gets selected for Army-funded graduate school (+2 years), and completes flight training (+6 years) could have a 15-year commitment before they've turned 30. ADSOs stack consecutively — not concurrently — unless your contract specifically states otherwise.
Step 1 of 3
What is your commissioning source?
Your base ADSO begins at commissioning, not at BOLC graduation.
Common Misconceptions
What doesn't create an ADSO — and what does
Myth
“Airborne School creates an ADSO”
False. Completing the Basic Airborne Course at Fort Liberty does not generate an Active Duty Service Obligation. You will not see an ADSO in your contract for completing jump school.
No ADSOMyth
“Ranger School creates an ADSO”
False. The Ranger Course at Fort Moore does not create an ADSO. It is a leadership school. Attending does not extend your minimum service commitment.
No ADSOMyth
“Your ROTC ADSO starts at BOLC graduation”
False. Your initial ADSO begins at commissioning — the date you take the oath of office. The time spent in BOLC is counted against your ADSO, not added to it.
Starts at commissioningMyth
“Multiple ADSOs run concurrently”
False. Unless your specific contract states otherwise, ADSOs stack consecutively. Accepting BRADSO after a 4-year commissioning ADSO means 4 + 3 = 7 years minimum, not 4 years total.
Consecutive, not concurrentMyth
“You can separate as soon as your ADSO date arrives”
False. You must submit a resignation or separation packet — typically 6–12 months in advance — and it must be approved. Separation is a process, not an automatic event.
Submit packet earlySources: AR 350-100 (Army Active Duty Service Obligations), AFI 36-2011 (Air Force Commissioning Programs), MILPERSMAN 1160-030 (Navy Obligated Service), MCO 1040.43 (Marine Corps Officer Program), COMDTINST M1000.6 (Coast Guard Personnel Manual). ADSO figures are based on current published regulations; individual contracts may specify different terms. Verify your specific obligations against your signed contract and current applicable regulations. This tool is educational — not legal advice.
Frequently Asked Questions
What is an ADSO?
An Active Duty Service Obligation (ADSO) is the minimum time you owe on active duty in return for a benefit the military gave you — a commission, a scholarship, funded schooling, flight training, or a bonus. Your base ADSO starts the day you take the oath of office at commissioning, not at BOLC or training-pipeline graduation, and time spent in those schools counts against it rather than adding to it.
Do multiple ADSOs stack, or do they run at the same time?
They stack consecutively unless your specific contract states otherwise — they do not run concurrently by default. A 4-year commissioning ADSO plus BRADSO (+3 years) is 7 years minimum, not 4. That is why officers who accept several benefits can be committed well past a decade before they realize it. Use the calculator above to add up your own stack.
What obligation does my commissioning source carry?
It depends on the source. On this page the service academies — West Point, Naval Academy, Air Force Academy, and Coast Guard Academy — each carry a 5-year base ADSO. Army and Air Force ROTC scholarships carry 4 years, Navy ROTC scholarship 5 years, and OCS/OTS and non-scholarship ROTC routes carry 3 years. Marine OCC/PLC is 3 years. Pick your exact source in Step 1 to see its base figure and the governing regulation.
How much does flight or aviation training add?
Aviation carries some of the longest obligations, and they run from the award of wings — not from commissioning. Army rotary-wing initial flight training adds 6 years from award of aviator wings. Navy and Marine fixed-wing is typically 8 years from winging, and Air Force pilot obligations commonly run 10 years from undergraduate pilot training. These vary by platform and community, so confirm the number in your own training commitment agreement.
Do Airborne or Ranger School create an ADSO?
No. Airborne School and Ranger School are common misconceptions — neither generates an Active Duty Service Obligation. Schools that do add time on this page include BRADSO (+3), Army-funded civilian schooling (+2), the Special Forces Qualification Course (+3), and Navy nuclear power training (+3). When your ADSO date does arrive, separation is not automatic: you must submit a resignation or separation packet, typically 6–12 months in advance, and have it approved.