TRICARE Overseas retiree cost calculator

Retirees are not covered for free overseas. This turns the 2026 TRICARE Select Overseas fees into a monthly planning line and the cash float you need because most hospitals will not bill TRICARE for you.

The cash-flow problem is bigger than the cost

There is no retiree direct-billing network in Thailand and most of Asia. JUSMAG Thailand states it plainly: retirees pay 100 percent up front and file with International SOS for reimbursement. Hospitals advertising "TRICARE accepted" are almost always describing the active-duty arrangement. There are exceptions. Retirees in Bangkok report that Samitivej bills TRICARE Select Overseas directly and collects only the 25 percent cost-share, while others have paid in full for an inpatient stay at a hospital that says it direct-bills. It varies by hospital, by department and sometimes by whether the patient is the sponsor or a family member. Ask before you need it, and size the float as if the answer is no.

Where a hospital does bill directly, retirees describe it like this:

• Put your TRICARE proof-of-coverage letter from milConnect on file with the hospital's insurance desk before you need care. If you are in the VA Foreign Medical Program, give them your FMP authorization letter too.
• At each visit tell them which applies: FMP for a service-connected condition, TRICARE for everything else and for family. They prepare the paperwork and you pay only your 25 percent.
• Treat every branch as its own answer. Bangkok Hospital branches each set their own billing policy, so a yes from one, or a yes on the phone, is not a yes at the cashier. Get it in writing.
• Ask for prescriptions in writing and fill them at an outside pharmacy. Hospital pharmacies charge brand-name prices. Keep the receipt for your claim.

A hospital's international desk may genuinely help prepare the itemized bill and DD Form 2642 for your claim. That is useful, and it is not the same as billing TRICARE.

So the float matters more than the premium. It is working capital, not an expense: it comes back. But without it, one admission comes out of the month's groceries.

Ask the hospital this, in writing

Two deadlines

• Enroll in retiree TRICARE within 90 days of losing active-duty coverage or it lapses.
• Set up electronic reimbursement with the overseas contractor before you leave. Mailed checks to Thailand ended in August 2026; without a direct-deposit destination, reimbursements strand.

Want the full picture, with your own numbers?

The Military Retirement Overseas Budget Planner is an Excel workbook that runs retired pay, VA compensation, GI Bill, debts and local living costs at three VA ratings side by side, with a 36-month projection where debts fall off on schedule, the TRICARE Overseas estimator, and a loan-payoff calculator. No macros. Works in Excel and Google Sheets.

Get the workbook, $19

Prefer the reasoning over the spreadsheet? The Retire to Thailand on TRICARE and the GI Bill field guide is 19 pages for $17: the money stack, the on-campus rule, TRICARE for retirees, visa tracks, and the phase-by-phase checklist.

2026 TRICARE Select Overseas retiree figures from tricare.mil. Group A family enrollment and deductible confirmed; individual and Group B figures are estimates, verify yours. The catastrophic cap varies by group and the $3,000 figure commonly quoted applies to medically retired members and survivors.