TRICARE Explanation of Benefits (EOB) Guide 2026 | TRICARE.com

## Quick answer A TRICARE Explanation of Benefits (EOB) is not a bill. It is a detailed report showing how TRICARE processed a specific medical claim, including what the provider charged, what TRICARE paid, and the exact amount you are responsible for paying.

## Details Whenever you or your provider files a claim for medical services or prescriptions, TRICARE generates an EOB. This document is your primary tool for tracking your healthcare spending and ensuring you are not being overcharged by providers.

*Note: TRICARE.com is an independent reference site and is not the official TRICARE program. For official policy and to access your specific EOBs, visit TRICARE.mil or your regional contractor’s portal.*

### Key Components of a TRICARE EOB * **Total Amount Charged:** The "sticker price" the doctor or hospital billed for the service. * **Allowed Amount:** The maximum amount TRICARE agrees to pay for that specific service. If you see a "Network" provider, they cannot bill you for the difference between the charged and allowed amounts (this is called "balance billing" and is prohibited). * **Paid by TRICARE:** The actual dollar amount sent to the provider by Humana Military (East), TriWest (West), or International SOS (Overseas). * **Deductible Applied:** How much of the bill went toward satisfying your annual deductible for the 2026 plan year. * **Patient Responsibility:** The specific copayment or cost-share you owe the provider.

### Why the EOB Matters in 2026 With the T-5 contract now fully in effect, West Region beneficiaries must ensure their EOBs are issued by **TriWest Healthcare Alliance**. If you see a discrepancy—such as being billed for a service TRICARE labeled as "denied"—the EOB provides the "Reason Code" explaining why. Common reasons include missing authorizations or services deemed not medically necessary.

### Pharmacy EOBs For prescriptions, **Express Scripts** manages the EOB process. These are typically generated monthly if you have pharmacy activity. They summarize your 2026 copays (e.g., $16 for brand-name formulary drugs at retail pharmacies or $13 for generics via home delivery) and show how much the government saved you by using the military pharmacy benefit.

### How to Access Your EOB In an effort to go green, TRICARE no longer mails paper EOBs by default. You must log in to your regional contractor’s secure portal to view them: * **East Region:** HumanaMilitary.com * **West Region:** TriWest.com * **Overseas:** TRICARE-overseas.com

## Who this affects The EOB process affects almost every TRICARE beneficiary who receives care from civilian providers, including: * **Active Duty Family Members (ADFMs):** Tracking cost-shares on TRICARE Select. * **Retirees and their families:** Monitoring enrollment fees and hitting Catastrophic Caps. * **National Guard and Reserve:** Those using TRICARE Reserve Select (TRS). * **TRICARE For Life (TFL) users:** Seeing how TRICARE pays as a secondary payer to Medicare. * **Note:** Active duty service members typically do not see EOBs for care at Military Treatment Facilities (MTFs) as there is no cost-share.

## Sources * **TRICARE.mil:** [Explanation of Benefits Overview](https://www.tricare.mil/eob) * **TriWest Healthcare Alliance:** [West Region Claims Portal](https://www.triwest.com) * **Humana Military:** [East Region Beneficiary Resources](https://www.humanamilitary.com) * **Express Scripts:** [TRICARE Pharmacy Benefits](https://militaryrx.express-scripts.com/)