Private Health Insurance vs. the Marketplace in Tennessee

The short answer: marketplace plans are private insurance. BlueCross BlueShield of Tennessee, Ambetter, Oscar, UnitedHealthcare, and Alliant sell them; HealthCare.gov is just the store. What changes when you buy somewhere else is whether you can get help paying. Premium tax credits and cost-sharing reductions only come with a plan bought through HealthCare.gov or a site connected to it. And if "private" means a non-ACA plan like a short-term or Farm Bureau plan, you also give up protections for pre-existing conditions.

Three things people mean by "private" health insurance

1. An ACA plan bought directly from an insurer or a broker ("off-exchange"). It's the same kind of plan sold on HealthCare.gov, with the same benefits and protections. The difference: no tax credits, no matter your income.
2. A marketplace plan bought through a private website or broker that connects to HealthCare.gov. Some broker and insurer websites are approved by CMS to enroll you in marketplace plans, with your tax credit applied. This is the marketplace, just a different front door.
3. A non-ACA plan: short-term health insurance, Tennessee Farm Bureau health plans, or a health care sharing ministry. These follow different rules, can turn you down or exclude conditions, and never come with tax credits.

Side by side

Where you buy changes your price only through subsidies

An insurer must charge the same premium for the same plan whether you buy it on HealthCare.gov, through a broker, or from the insurer directly. Rates are filed with and approved by the Tennessee Department of Commerce & Insurance. Brokers are paid commissions by the insurer, so using one doesn't raise your premium.

So the decision isn't about finding a cheaper "private" price for the same plan. It's this: if you qualify for a tax credit, buy through HealthCare.gov (or an approved site that connects to it), or you leave money on the table. In 2027 that's anyone with household income between 100% and 400% of the poverty level who doesn't have affordable job-based coverage, Medicare, or TennCare. Estimate your credit.

When buying off-exchange can make sense

• You're over 400% of the poverty level. With the enhanced credits gone, you get no tax credit in 2027, so buying on or off the marketplace costs the same for most plans.
• An insurer sells a plan or network off-exchange that it doesn't sell on HealthCare.gov. Some Tennessee insurers sell both on and off the exchange; the lineups aren't always identical. Ask the insurer or a broker.
• You get no tax credit and want a silver plan. Insurers often price the cost of cost-sharing reductions into on-exchange silver premiums. Some sell silver plans off-exchange that don't carry that extra load. If you're paying full price anyway, compare the same insurer's silver plan on and off HealthCare.gov.
• Your employer reimburses you through an ICHRA. Individual coverage HRAs can be used with off-exchange plans, and some insurers sell plans built for them.

If your income might fall into the 100%–400% range during the year, buy through HealthCare.gov. You can't claim a premium tax credit at tax time for a plan bought off-exchange.

The non-ACA "private" options in Tennessee

These are legal, sold year-round, and sometimes much cheaper for healthy people. Each comes with real trade-offs:

• Tennessee Farm Bureau health plans. Sold in all 95 counties and medically underwritten: you answer health questions and can be declined, charged more, or have conditions excluded. Membership in the Farm Bureau is required.
• Short-term health plans. Temporary, medically underwritten coverage that doesn't have to cover pre-existing conditions or essential health benefits.
• Health care sharing ministries. Members share medical bills under the ministry's guidelines. Tennessee's Healthcare Sharing Ministries Freedom to Share Act (Public Chapter 526, 2024) says these ministries are not insurance and aren't subject to the state insurance code. Payment of any bill isn't guaranteed, and pre-existing conditions are often limited. The Department of Commerce & Insurance lists ministries and takes complaints.

A good rule: if you have any ongoing health condition, or you qualify for a tax credit, compare marketplace plans first.

Watch out for these

• Lead-generation sites that look official. Many "health insurance" sites exist to collect your phone number and sell it to agents. HealthCare.gov is the official marketplace for Tennessee.
• Being sold a non-ACA plan when you wanted an ACA plan. Ask directly: "Is this an ACA-compliant plan? Does it cover pre-existing conditions? Can I use a premium tax credit with it?"
• Agents changing your plan without permission. Only you should approve enrollment changes. Check your HealthCare.gov account if you get unexpected notices, and report problems to the Marketplace Call Center at 1-800-318-2596.

Frequently asked questions

Is marketplace insurance private insurance? Yes. Every marketplace plan in Tennessee is sold by a private insurer. HealthCare.gov is the federal store where you compare plans and get tax credits; it isn't a government health plan.

Can I buy the same plan cheaper directly from the insurer? No. The same plan costs the same on and off the marketplace. The only price difference comes from tax credits, which you can only get through HealthCare.gov or an approved site connected to it.

Do I lose my subsidy if I use a broker? Not if the broker enrolls you in a marketplace plan through HealthCare.gov or an approved enrollment site. You lose it if the broker sells you an off-exchange plan or a non-ACA plan. Ask which one you're getting.

Can I buy private health insurance any time of year? ACA plans, on or off the marketplace, can only be bought during open enrollment (November 1, 2026 – January 15, 2027) or a special enrollment period. Short-term plans, Farm Bureau plans, and sharing ministries can be joined year-round, subject to their health questions.

Is a health care sharing ministry the same as insurance? No. Tennessee law says sharing ministries aren't insurance. There's no guarantee your bills will be paid, and ACA protections don't apply.

I make too much for a subsidy. What's my best option? Compare full-price marketplace plans, the same insurers' off-exchange plans, employer coverage if you have access, and, if you're healthy and understand the trade-offs, Farm Bureau plans. Employer coverage vs. the marketplace and how the 400% cliff works.

Sources

• HealthCare.gov — marketplace plans, premium tax credit eligibility, and enrollment through approved partner websites
• 45 CFR 156.255(b) — a plan must charge the same premium whether sold through the marketplace or outside it
• CMS guidance on offering plans outside the exchange without the cost-sharing-reduction load
• Tennessee Public Chapter 526 (2024), Healthcare Sharing Ministries Freedom to Share Act; WKRN reporting on the act and the Department of Commerce & Insurance's role
• Tennessee Department of Commerce & Insurance — rate review and consumer complaints
• IRS Revenue Procedure 2026-26 and CMS 2027 plan-year parameters — tax credit rules and out-of-pocket maximum