DFAS Secondary Dependency Guide: Parents, Students, Wards, and Incapacitated Children
Secondary dependency is where family reality meets DFAS paperwork. If you support a parent, parent-in-law, student age 21 or 22, ward, or incapacitated adult child, the question is not whether they need help. The question is whether the packet proves legal and financial dependency under DFAS rules.
Educational guide based on DFAS public secondary dependency information. Dependency determinations are fact-specific; use DFAS, your service processing office, legal assistance, and finance for case-specific advice. Last verified: July 8, 2026.
How to handle Secondary Dependency
Pick the correct dependent category
DFAS separates parents, incapacitated child, student age 21/22, and ward of the court. The forms and evidence differ by category.
Prove more than half support
DFAS states the sponsor must provide more than half of the claimed person's support. Income the person receives is not automatically support unless spent for support.
Use tax return or support worksheet
DFAS says a prior-year tax return showing the dependent may prove dependency, or you can use the support worksheet in the DD 137 packet.
Document legal relationship
Birth, adoption, marriage, court order, guardianship, school enrollment, medical incapacity, or in-loco-parentis proof may be required depending on the claim.
Submit to the correct processing office
DFAS warns to use the correct service processing office. Applications processed by DFAS can be submitted through AskDFAS or mail, and DFAS says they are not accepted by fax or email.
Calendar redetermination before benefits lapse
DFAS says failure to recertify can suspend benefits and create debt, and back pay may not be authorized for lapsed BAH periods.
The problems people actually search for
Can I claim my parent or parent-in-law?
Usually means: Maybe, but you need legal relationship proof and more-than-half support proof, not just moral obligation.
Move: Build a monthly support worksheet with all income, all expenses, and what you paid. Add legal relationship documents.
DFAS denied the packet for financial support.
Usually means: The packet did not prove you provided more than half of total support or did not count the dependent's own spent income correctly.
Move: Rebuild the support test with bank statements, bills, rent, medical costs, food, utilities, and dependent income spent for support.
My incapacitated child is turning 21.
Usually means: You need dependency determination before age-based eligibility collapses, and DFAS notes determinations cannot be completed more than 90 days in advance for certain timing.
Move: Start early with medical incapacity documents, dependency proof, school/age history if relevant, and ID card office/DFAS guidance.
My college student dependent is 21 or 22.
Usually means: Full-time accredited-school enrollment and unmarried status matter.
Move: Gather school certification, full-time status, tuition/support proof, and calendar term dates before eligibility changes.
BAH stopped after redetermination lapsed.
Usually means: DFAS says failure to recertify suspends benefits and may create debt or prevent back pay for the lapsed period.
Move: Submit redetermination immediately, preserve lapse notice, and ask finance/DFAS about debt and restart date.
I sent documents and never heard back.
Usually means: Wrong processing office, missing ticket tracking, mailed packet delay, or incomplete packet.
Move: Use AskDFAS where eligible, preserve ticket number, and confirm the branch-specific processing office before resubmitting.
Where people usually get stuck
The family member clearly needs help, but the packet does not prove the statutory support test.
A parent packet is built like a student packet or vice versa.
Benefits lapse and debt risk starts.
Packet is sent through a method DFAS says is not accepted.
Build the proof packet before you escalate
- Correct DD 137 category packet and instructions.
- Proof of relationship: birth, marriage, adoption, court order, guardianship, or in-loco-parentis evidence.
- Tax return claiming the dependent or completed support worksheet.
- Dependent income and expenses: Social Security, wages, rent, utilities, food, medical, insurance, transportation, and savings.
- Sponsor payments: bank statements, transfers, receipts, leases, bills paid, and recurring support evidence.
- For student/incapacitated child: school certification or medical incapacity records, age/status proof, and unmarried status evidence.
Things that make the problem worse
Who can actually fix it
DFAS / service SDC processing office
For packet status, missing documents, determination, and redetermination.
Finance office
For BAH start/stop, debt, LES impact, and pay correction after approval.
ID card office / DEERS
For USIP card and DEERS registration after dependency approval.
Legal assistance
For guardianship, court orders, adoption, in-loco-parentis, and complex family documents.
Copy/paste messages that get cleaner answers
Secondary dependency packet status
Subject: Secondary dependency packet status - [dependent type] Sponsor: [rank/name/branch] Dependent type: [parent/student/incapacitated child/ward] Submission method: [AskDFAS/mail] Ticket/tracking number: [number] Submission date: [date] Documents included: [list] Benefit affected: [BAH/ID card/travel/etc.] Please confirm packet status and whether any specific document or support-test item is missing.
Redetermination lapse / BAH stopped
Subject: Secondary dependency redetermination - BAH/benefit lapse Sponsor: [rank/name] Dependent: [relationship] Prior approval date/expiration: [date] Benefit affected: [BAH/USIP/etc.] Date benefit stopped or debt appeared: [date] Redetermination packet status: [not submitted/submitted/date] Please advise what is required to restore dependency status, whether debt was established, and the effective date rules after lapse.
Fast answers
Who can be a secondary dependent?
DFAS lists categories including parents, incapacitated child over 21, student age 21 or 22, and ward of the court, with category-specific rules.
What is the support test?
DFAS says sponsors must provide more than half of the claimed individual's total support.
What happens if redetermination lapses?
DFAS says benefits may be suspended, debt may result, and BAH back payment may not be authorized for the lapsed period.
Can I submit by email?
DFAS says secondary dependency applications are not accepted via fax or email; use AskDFAS or mail where applicable.