TRS-Care vs. ACA and Medicare Options: 2027 Guide for Retirees

Most Texas educators I talk with about TRS-Care ask the same thing: "Can I find something cheaper?" Sometimes you can. But comparing premiums isn't enough, because leaving TRS-Care can be hard to reverse.

This guide compares TRS-Care vs. ACA coverage before 65 and TRS-Care Medicare Advantage vs. other Medicare options at 65 and older. I cover the 2027 premiums, who qualifies, how ACA subsidies work for retirees, and the re-entry rules to know before you opt out.

Timing matters. ACA open enrollment runs Nov. 1 through Jan. 15 in most states, and you generally need to pick a plan by Dec. 15 for coverage starting Jan. 1.

Quick Answer: Which Coverage Fits Your Situation?

Source: TRS 2027 TRS-Care Plan Highlights.

Who Qualifies for TRS-Care?

According to TRS, a service retiree needs at least 10 years of TRS service credit plus one of the following:

• The Rule of 80: your age plus years of service credit equals 80 or more, or
• 30 or more years of service credit

Service from other Texas systems under the Proportional Retirement Program doesn't count toward TRS-Care eligibility. Disability retirees have separate rules.

A Note for University Retirees

A service retiree who is eligible for health coverage through ERS, the UT System, or the Texas A&M System can't enroll in TRS-Care. That matters for many of my higher-ed readers. If you spent part of your career at a UT or A&M campus, check which retiree health program you belong to before you compare anything.

Not sure whether you meet the Rule of 80? Try my TRS Rule of 80 calculator.

The Rule to Understand First: Leaving TRS-Care Is Hard to Undo

TRS-Care gives you limited chances to enroll. If you decline at retirement or drop out later, TRS says you can come back only:

• At age 65. Your application must arrive within 31 days after the end of the month you turn 65.
• After a special enrollment event. That means an involuntary loss of other comprehensive coverage, or a new dependent through marriage, birth, adoption, or guardianship. You have 31 days and need documents.
• During a limited-time enrollment window, when TRS offers one (more on the current window below).

What This Means by Age

• Before 65, opting out is a real choice, but not a permanent one. You can still join TRS-Care at 65.
• After 65, opting out carries more risk. Your main way back is a limited-time window, and TRS isn't required to offer one.

Before 65: TRS-Care Standard vs. an ACA Plan

TRS-Care Standard in 2027

TRS-Care Standard covers retirees who aren't on Medicare. TRS says the premiums have stayed unchanged for years.

Source: TRS 2027 TRS-Care Plan Highlights. The network is Blue Cross and Blue Shield of Texas, with prescriptions through Express Scripts.

TRS-Care Standard is a high-deductible plan that TRS describes as HSA-eligible. TRS raised the 2027 deductible to $1,750, the IRS minimum for an HSA-eligible plan in 2027. That means you may be able to keep contributing to an HSA until you enroll in Medicare.

How ACA Subsidies Work for Retirees

ACA premium tax credits are based on income, not savings. For 2027 coverage, the credit generally ends at 400% of the federal poverty level. The enhanced credits that removed that cap expired after 2025, and Congress hasn't extended them.

Based on the 2026 HHS poverty guidelines for the 48 contiguous states. Alaska and Hawaii are higher.

Under the cutoff, the IRS caps what you pay for the benchmark silver plan at a share of your income. Between 300% and 400% of the poverty level, that share is 10.22% for 2027, according to IRS Rev. Proc. 2026-26.

One more rule: being eligible for TRS-Care doesn't block the subsidy. Being enrolled in it does. So to use an ACA credit, you'd have to stay out of TRS-Care, with the re-entry limits above.

Watch for Income Traps

Pension income counts toward ACA income. So do taxable withdrawals, Roth conversions, and capital gains. Because the 400% cutoff is a cliff, one dollar over the line can cost you the entire credit for the year.

I explain what counts in Early Retirement and ACA Subsidies. If you're weighing Roth conversions, see Roth Conversions and IRMAA.

Three Examples (Hypothetical)

Other Points to Compare

• Networks. Check that your doctors and hospitals take the plan, not just the insurer.
• Out-of-pocket maximum. Compare your worst-case year, not just the premium.
• Prescriptions. Look up your drugs on each plan's list.
• A younger spouse. If you turn 65 first, plan for your spouse's coverage until they reach Medicare.

At 65: TRS-Care Medicare Advantage vs. Other Medicare Options

TRS-Care Medicare Advantage in 2027

If you're in TRS-Care Standard, enroll in Medicare and give TRS your Medicare number before you turn 65. TRS then moves you to its group Medicare Advantage plan through UnitedHealthcare, with prescription coverage included. TRS lowered premiums in every tier for 2027.

Source: TRS 2027 TRS-Care Plan Highlights.

Don't Drop Part B

Since Jan. 1, 2026, you must enroll in and pay for Medicare Part B to stay in TRS-Care. Dropping Part B means losing TRS-Care entirely.

So add Part B to every comparison. The standard Part B premium is $202.90 a month in 2026, per CMS. The Medicare Trustees project about $209.50 for 2027. CMS usually announces the final number in November.

Higher-income retirees also pay IRMAA. It's based on your income from two years earlier, so your 2025 tax return sets your 2027 Part B cost. In 2026, IRMAA starts above $109,000 of income for single filers and $218,000 for joint filers.

For a single retiree, TRS-Care Medicare Advantage plus standard Part B runs about $260 a month in 2027.

Original Medicare + Medigap + Part D

This route gives you the most freedom to see any doctor who takes Medicare, with no network. The trade-off is three separate premiums, which vary widely by age, ZIP code, and insurer.

Timing is the big issue. You get a one-time, six-month Medigap open enrollment period that starts the month you're 65 or older and enrolled in Part B. During that window, insurers can't turn you down or charge more for your health.

An Individual Medicare Advantage Plan

You'll see ads for $0-premium plans. TRS urges retirees to look at total out-of-pocket costs, not just premiums. Individual plans often have higher out-of-pocket limits and narrower networks than TRS-Care's $3,500 maximum.

Also, TRS says that if you try to enroll in an individual Medicare Advantage or drug plan, you lose all TRS-Care coverage. For more on the enrollment steps, see my Medicare enrollment guide.

Left TRS-Care? The Limited-Time Window Is Open

TRS has opened a limited-time window from Oct. 1, 2026, through March 31, 2028. It lets eligible Medicare retirees enroll in or rejoin TRS-Care Medicare Advantage. It's open to:

• Retirees who were eligible for TRS-Care at retirement but didn't enroll
• Retirees who enrolled and later left
• Surviving spouses and dependents of a deceased TRS-Care-eligible retiree

You'll need proof of Part B enrollment and your Medicare number. You can apply through MyTRS or call TRS Health at 1-888-237-6762. Details are on the TRS enrollment page.

When switching back makes sense: You may want to come back if you're paying a lot for an individual plan, your health has changed and Medigap would now underwrite you, or you want the $3,500 out-of-pocket cap. If you're happy with a Medigap plan you got at 65, compare carefully before you give it up. You may not get it back on the same terms.

The Risks and the 2027 Legislative Session

The Texas Legislature meets again in January 2027, and TRS-Care funding will be on the agenda.

TRS's view. TRS credits the 2027 premium cuts partly to support from the Legislature and the governor's office, federal changes, and its own management of the fund.

Retired teachers' view. The Hill Country Community Journal reported in September 2026 that some providers won't accept the plan. Tim Lee, executive director of the Texas Retired Teachers Association, predicted more cuts if lawmakers don't add funding.

Decision Checklist

Before you opt in, opt out, or switch:

1. Check your doctors and prescriptions in every plan you're considering.
2. Estimate your income against the ACA cutoff (before 65) and IRMAA tiers (at 65 and older).
3. Compare total costs in a low-use year and a high-use year, including premiums, deductibles, and out-of-pocket maximums.
4. Review your spouse's coverage, including what happens when one of you reaches Medicare first.
5. Confirm your re-entry rights with TRS before you leave TRS-Care.

FAQ: TRS-Care, ACA, and Medicare

Conclusion

The TRS-Care vs. ACA decision is about more than premiums. It's about your doctors, your income, and whether you can get back in if your plans change. For many Texas retirees, TRS-Care is the low-cost choice in 2027. For some early retirees with lower incomes, an ACA plan can make sense.

If you'd like help running these numbers alongside your pension, Roth conversion, and Social Security decisions, a one-time financial plan can put it all in one place.

Authoritative references: TRS, "TRS-Care Eligibility"; TRS, "2027 TRS-Care Plan Highlights"; TRS Pulse, "TRS-Care 2027 Premiums"; TRS, TRS-Care Standard FAQ (2026); TRS, TRS-Care Medicare Advantage enrollment page; 34 Tex. Admin. Code §41.17; IRS Rev. Proc. 2026-26; CMS, "2026 Medicare Parts A & B Premiums and Deductibles"; 2026 Medicare Trustees Report; KFF, "Medigap Guaranteed Issue Requirements"; Georgetown Navigator Resource Guide, "Retiree Coverage."