Back to All FAQs
eligibility
enrollment
What is DEERS and why is it important?
Verified by TRICARE.com Editorial Team
Updated 2024-12-01
AI-assisted (gemini, gpt-4o)
Quick Answer
DEERS is the Defense Enrollment Eligibility Reporting System—the database that verifies military benefits eligibility. You must be registered in DEERS to receive TRICARE coverage.
Featured Video
Key Takeaways
- DEERS registration is required for TRICARE
- Sponsors are auto-enrolled; family members need registration
- Keep information current to avoid benefit issues
- Updates require visiting a RAPIDS site with documents
Detailed Answer
DEERS (Defense Enrollment Eligibility Reporting System) is the centralized database that records information about military members and their families. Your DEERS registration determines your eligibility for:
- TRICARE healthcare benefits
- Military ID cards
- Commissary and exchange privileges
- MWR programs
Key Points About DEERS
- Sponsors (service members) are automatically enrolled
- Family members must be registered by the sponsor
- Information must be kept current for benefits to continue
- Life events (marriage, birth, divorce) require updates
How to Update DEERS
- Visit a military ID card office (RAPIDS site)
- Bring required documents (marriage certificate, birth certificate, etc.)
- Some updates can be done online at milConnect
Keeping your DEERS information current is essential—outdated information can result in denied claims and loss of benefits.
Helpful Tips
- Check your DEERS info annually
- Update within 30 days of life changes
- Keep copies of supporting documents
Related TRICARE Terms
Defense Enrollment Eligibility Reporting System(DEERS)
Database of all individuals eligible for military benefits.
Sponsor
Active duty or retired service member whose service qualifies family for benefits.
Beneficiary
Person eligible to receive TRICARE benefits.
Active Duty Family Member(ADFM)
Eligible family members of active duty service members.