ACA Plans Along the Gulf Coast — 2026 Multi-State Guide
Updated May 2026 · Southern Plan Finder — Licensed Health Insurance Agency
- All 5 Gulf Coast states use the federal marketplace at healthcare.gov — no state exchanges
- Louisiana EXPANDED Medicaid in 2016 — adults up to 138% FPL qualify; FL, AL, MS, TX did not
- Federal subsidy rules (APTC, CSR) are identical across all five states
- Silver plans with Cost-Sharing Reductions are the best value at 100–250% FPL in all states
- Benchmark Silver premiums range from ~$370–$490/month depending on state and market
- Open enrollment: November 1, 2026 – January 15, 2027 in all Gulf Coast states
The Gulf Coast stretches from the Florida Panhandle through Alabama, Mississippi, Louisiana, and the Texas Gulf Coast — five states with distinct economies, demographics, and healthcare systems, all sharing a common federal ACA marketplace framework. Whether you're in Pensacola, Mobile, Biloxi, New Orleans, or Houston, you enroll through the same platform (healthcare.gov), access the same plan metal tiers, and qualify for subsidies under the same federal rules.
But the similarities mask important state-level differences — particularly Louisiana's Medicaid expansion, which fundamentally changes coverage access for lower-income residents compared to the other four states. This guide explains how ACA plans work across the Gulf Coast, what's the same in every state, and where the critical differences lie.
The One Big Difference: Medicaid Expansion
Louisiana Expanded Medicaid — The Others Did Not
Louisiana expanded Medicaid under the ACA in 2016. Adults in Louisiana earning up to 138% FPL ($22,044 for a single adult; $45,540 for a family of four in 2026) qualify for Medicaid. Florida, Alabama, Mississippi, and Texas have NOT expanded Medicaid — adults below 100% FPL without qualifying dependents face a coverage gap in those four states.
The Coverage Gap in FL, AL, MS, and TX
In Florida, Alabama, Mississippi, and Texas, adults earning below 100% FPL without qualifying dependents don't qualify for Medicaid or ACA marketplace subsidies. They are in the "coverage gap" — earning too much for traditional Medicaid, too little for ACA subsidies. In Louisiana, this gap doesn't exist — those residents qualify for Medicaid instead. This policy difference has profound real-world consequences for low-wage workers along the Gulf Coast.
Gulf Coast States — ACA Marketplace Snapshot
Florida
Federal marketplace (healthcare.gov) · No Medicaid expansion · Most carrier competition of any Gulf state · Dominant carrier: Florida Blue · Highest premiums in South Florida
Alabama
Federal marketplace · No Medicaid expansion · BCBS Alabama dominant · Limited carrier competition in most markets · Competitive premiums vs. FL
Mississippi
Federal marketplace · No Medicaid expansion · BCBS Mississippi dominant · Lowest income state — gap affects significant portion of workforce · Similar premiums to AL
Louisiana ✓ Expanded
Federal marketplace · Medicaid expanded 2016 · Adults up to 138% FPL get Medicaid · BCBS Louisiana + Vantage + Ambetter · Competitive premiums
Texas
Federal marketplace · No Medicaid expansion · Large state with varied premiums · BCBS Texas, Molina, Ambetter, Oscar · Houston and border markets have most carrier options
ACA Plan Metal Tiers — How They Work Along the Gulf Coast
ACA plans are structured in metal tiers that define how costs are split between you and your insurer. The tiers work the same across all five Gulf Coast states:
Bronze
Lowest premium
Highest out-of-pocket
Deductible: $6,000–$9,100+
Best for: healthy adults who rarely use care
Silver
Mid-range premium
Mid-range cost-sharing
Deductible: $3,500–$5,500
Only tier with CSR enhancement
Best for: 100–250% FPL enrollees
Gold
Higher premium
Lower out-of-pocket
Deductible: $500–$1,500
Best for: heavy healthcare users above 250% FPL
The Silver tier requires special attention. Silver is the only tier where Cost-Sharing Reductions (CSRs) apply. For Gulf Coast residents earning 100–250% FPL, enrolling in a Silver plan transforms a mid-range plan into an enhanced plan with dramatically reduced deductibles (often $500–$800 instead of $3,500+) and capped out-of-pocket costs. This CSR benefit is worth thousands of dollars per year — but only if you choose Silver. Choosing Bronze or Gold at this income level means forfeiting CSRs entirely.
2026 Benchmark Silver Premiums Across the Gulf Coast
| State / Market |
Benchmark Silver (Age 40, Before Subsidies) |
Key Note |
| Florida Panhandle (Escambia, Santa Rosa) |
~$405–$410/month |
No Medicaid expansion |
| South Florida (Miami-Dade) |
~$490–$510/month |
Gulf Coast's most expensive market |
| Alabama (Mobile, Baldwin) |
~$385–$390/month |
No Medicaid expansion; BCBS-dominant |
| Alabama (Birmingham area) |
~$375–$380/month |
Best carrier competition in AL |
| Mississippi Gulf Coast |
~$390–$400/month |
No Medicaid expansion |
| Louisiana (New Orleans, Baton Rouge) |
~$375–$385/month |
Medicaid expansion covers up to 138% FPL |
| Texas Gulf Coast (Houston area) |
~$395–$420/month |
No Medicaid expansion; best carrier variety in TX |
| Texas Gulf Coast (Corpus Christi) |
~$415–$435/month |
No Medicaid expansion; limited carrier competition |
Benchmark Silver premiums for a 40-year-old non-smoker before premium tax credits. Actual premiums vary by age, tobacco status, zip code, and year. Verify current rates at healthcare.gov.
ACA Subsidy Rules — Same in Every Gulf Coast State
Federal ACA subsidy rules are identical across all five Gulf Coast states. The subsidies come in two forms:
- Advanced Premium Tax Credit (APTC): Available at 100% FPL and above. 2026 thresholds: $15,960 (1 person), $21,640 (2), $27,320 (3), $33,000 (4), +$5,680 per additional person. Reduces your monthly premium. Calculated as the amount your benchmark Silver premium exceeds your income-based contribution percentage (ranges from 0% at 100% FPL to 8.5% at higher incomes).
- Cost-Sharing Reductions (CSR): Available at 100–250% FPL on Silver plans only. Three CSR tiers exist — 94%, 87%, and 73% actuarial value — with the best CSR value at 100–150% FPL. Must enroll in Silver to receive CSRs.
The 8.5% cap means there is effectively no income ceiling on APTC. A household earning $100,000 whose benchmark Silver premium is $12,000/year ($1,000/month) qualifies for a credit since $12,000 exceeds 8.5% of $100,000 ($8,500). The credit would be $3,500/year ($292/month) — significant even at higher incomes.
Dominant Carriers by Gulf Coast State
| State |
Dominant Carrier |
Key Competitors |
| Florida |
Florida Blue (BCBS FL) |
Molina, Ambetter, Oscar, Cigna, United |
| Alabama |
BCBS Alabama |
Ambetter from Alliant (select markets) |
| Mississippi |
BCBS Mississippi |
Ambetter from Magnolia (select markets) |
| Louisiana |
BCBS Louisiana |
Vantage, Ambetter (Lafayette, Shreveport) |
| Texas Gulf Coast |
BCBS Texas |
Molina, Ambetter, Oscar, UnitedHealthcare (Houston) |
Frequently Asked Questions — Gulf Coast ACA Plans
Which Gulf Coast states have expanded Medicaid?
Only Louisiana has expanded Medicaid among the five Gulf Coast states. Louisiana expanded in 2016, covering adults up to 138% FPL ($22,044 single adult in 2026). Florida, Alabama, Mississippi, and Texas have not expanded Medicaid. This creates a coverage gap for lower-income adults in those four states — they earn too much for traditional Medicaid but too little for ACA subsidies.
What is the difference between Bronze, Silver, and Gold ACA plans on the Gulf Coast?
Bronze plans have the lowest premiums but highest cost-sharing (deductibles $6,000+). Silver plans are mid-range but uniquely deliver Cost-Sharing Reductions for those at 100–250% FPL — transforming a mid-tier plan into an enhanced plan with dramatically lower deductibles ($500–$800 vs. $3,500+). Gold plans have higher premiums but lower cost-sharing. For most Gulf Coast residents at 100–250% FPL, Silver with CSRs is the best value.
How do ACA subsidies work along the Gulf Coast in 2026?
ACA subsidies are federally determined and work identically in all five Gulf Coast states. Premium Tax Credits are available at 100% FPL and above. Cost-Sharing Reductions are available at 100–250% FPL on Silver plans only. There is no upper income cap — anyone whose benchmark Silver premium exceeds 8.5% of household income qualifies for at least some subsidy. Visit kff.org/subsidy-calculator to estimate your savings.
Which Gulf Coast states use a state marketplace vs. healthcare.gov?
All five Gulf Coast states — Florida, Alabama, Mississippi, Louisiana, and Texas — use the federal marketplace at healthcare.gov. None operate their own state exchange. Enrollment, plan comparison, and subsidy determination all happen on the federal platform. The process is identical regardless of which Gulf Coast state you're enrolling in.
Navigating ACA plans across the Gulf Coast? A licensed agent can help you compare options in your specific state, determine Medicaid eligibility in Louisiana, and find the right plan at no charge.
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Southern Plan Finder — Licensed Health Insurance Agency
This resource is maintained by a licensed health insurance producer (NPN #21249133) serving the Gulf Coast from Florida to Texas. We specialize in ACA marketplace plans, Medicaid eligibility, and enrollment.
State guides: Florida Panhandle · Alabama · Mississippi · Louisiana · Texas Gulf Coast