Fully Insured: The Complete Guide to Maryland

A fully insured group health plan is the traditional model of employer-sponsored coverage: the employer pays a fixed monthly premium to an insurance carrier, and in exchange, the carrier takes on all the financial risk for the employees’ medical claims. If an employee incurs a $250,000 hospital bill, the insurance company pays it; the employer’s premium remains entirely unaffected for that current plan year.

For business owners and HR leads in Maryland, this is the default, baseline option for a reason. It delivers total financial predictability, straightforward administration, and a guaranteed set of state-regulated benefits. You do not have to manage a claims fund, purchase stop-loss insurance, or worry that a catastrophic employee illness will bankrupt the company. You pay the invoice, the employees use their plan cards, and the carrier handles the rest.

However, fully insured is not the only way to fund a group health plan, nor is it the cheapest. Because the carrier is absorbing all the risk, they charge a premium that includes a margin for error, administrative fees, state taxes, and profit. If your employees are exceptionally healthy and rarely go to the doctor, you do not get a refund at the end of the year—the carrier keeps the surplus.

This guide covers exactly how fully insured plans work for Maryland employers, how the rules change depending on the size of your business, what your actual day-to-day administrative burden looks like, and how to evaluate whether this traditional funding model remains the best fit for your team.

The Core Mechanics of a Fully Insured Plan

To understand if a fully insured plan is right for your Maryland business, you must first understand the fundamental mechanics of how risk, premiums, and administration are structured.

The Transfer of Risk

The defining feature of a fully insured plan is the total transfer of risk from the employer to the insurance carrier. Healthcare claims are inherently volatile. One year, a 20-person company might incur only $15,000 in total medical expenses. The next year, if one employee requires specialty biologic medication and another requires a complex surgery, claims could easily exceed $350,000.

A small or mid-size business generally does not have the cash flow to absorb that kind of volatility. A fully insured plan acts as a financial shock absorber. By paying a predetermined monthly premium, the business owner caps their liability. Whether the group generates $10,000 in claims or $1,000,000 in claims, the employer’s financial obligation to the carrier for that year is exactly the same: the agreed-upon monthly premium.

Medical Loss Ratio (MLR) Guardrails

While carriers charge a premium to bear this risk, they are not allowed to keep unlimited profit. Under the Affordable Care Act (ACA), fully insured plans are subject to Medical Loss Ratio (MLR) rules.

In the small group market (1-50 employees), carriers must spend at least 80% of collected premiums on actual medical care and healthcare quality improvements. In the large group market (51+ employees), that threshold is 85%. If a carrier spends less than this percentage—meaning they collected far more in premiums than they paid out in claims—they are legally required to issue MLR rebate checks back to the employers. This provides a baseline level of consumer protection against price gouging in the fully insured market.

Defined Benefit vs. Defined Contribution

A fully insured group plan is a “defined benefit” model. The employer selects the specific health insurance plans—perhaps a standard HMO and a premium PPO—and offers them to the staff. The employer defines the benefit the employee will receive.

This contrasts sharply with newer models like the Individual Coverage Health Reimbursement Arrangement (ICHRA), which is a “defined contribution” model. In an ICHRA, the employer simply provides a fixed monthly allowance (e.g., $400), and the employees go to the individual market to buy their own separate policies. Fully insured plans keep everyone under one unified company policy, which is often what top-tier talent expects from a competitive benefits package.

Small Group vs. Large Group Rules in Maryland

The regulatory environment for fully insured plans in Maryland hinges entirely on the size of your business. The state categorizes employers into two distinct markets: the Small Group market and the Large Group market. The rules governing how rates are calculated, what benefits must be covered, and how underwriting works change dramatically the moment you cross the 50-employee threshold.

Counting Your Employees: The FTE Calculation

You determine your group size not by a simple headcount, but by calculating your Full-Time Equivalent (FTE) employees over the prior calendar year. An employee working 30 or more hours per week counts as one full FTE. Part-time employees’ hours are aggregated to create fractional FTEs. For example, two employees each working 15 hours per week equal one FTE. Independent contractors (1099s) and business owners (in most legal structures) do not count toward this total.

The Small Group Market (1 to 50 FTEs)

If your business has between 1 and 50 FTEs, you operate in the Maryland small group market. This market is heavily standardized by the Affordable Care Act.

Guaranteed Issue and No Medical Underwriting: In the small group fully insured market, coverage is “guaranteed issue.” A carrier cannot ask your employees to fill out health questionnaires, they cannot deny your company coverage, and they cannot charge you a higher rate because an employee has a pre-existing condition like diabetes or cancer.

Community Rating Mechanics: Because carriers cannot use health history, small group fully insured premiums are determined using a strict formula known as “community rating.” Your rates are calculated based on only three allowable factors:

1. Age of the employees: Older employees naturally carry a higher premium rate than younger employees.
2. Geographic location: Rates are tied to your company’s primary ZIP code in Maryland. Healthcare costs in Baltimore may differ slightly from costs in Salisbury or Cumberland.
3. Tobacco use: Carriers are permitted to charge a surcharge for employees who use tobacco products, though many employers choose not to implement this factor to simplify administration.

Because these rates are filed and approved by the state each year, there is no negotiating. If two separate 10-person tech startups in Annapolis have employees of the exact same ages, they will receive the exact same premium quote from a carrier for the exact same fully insured plan.

The Large Group Market (51+ FTEs)

The moment your business grows to 51 or more FTEs, you exit the ACA small group market and enter the large group fully insured market. The rules fundamentally change.

Experience Rating: Large groups are not community-rated; they are “experience-rated.” This means the insurance carrier will look at your company’s actual historical claims data. If your team has a history of high medical utilization, your premium rates will be higher. If your team is generally healthy and uses the plan infrequently, your rates will be lower.

Negotiable Rates: Because rates are based on your group’s specific risk profile, large group premiums are negotiable. Your broker can leverage your positive claims history to aggressively negotiate the renewal rates with the carrier.

Customizable Plan Designs: While small groups must choose from pre-packaged, state-approved plan designs (often categorized as Bronze, Silver, Gold, and Platinum), large groups have far more flexibility. You can customize copays, adjust pharmacy deductibles, and tweak out-of-pocket maximums to fit your specific budget and workforce needs.

Premium Structures: Age-Banded vs. Composite Rates

When you receive a fully insured quote, the pricing structure will typically be presented in one of two ways. Understanding the difference is critical for HR budgeting and setting payroll deductions.

Age-Banded Rates (Member-Level Rating)

In an age-banded structure, every single employee has a unique premium cost tied to their specific age. A 24-year-old employee might cost the company $310 per month, while a 61-year-old employee might cost $890 per month. If an employee enrolls a spouse or children, their ages are calculated and added to the total as well.

The advantage: Age-banded rates reflect the exact, actual cost of your current workforce. If your 61-year-old employee leaves the company, your monthly invoice drops immediately by $890. The disadvantage: It creates administrative friction. The employer must calculate exact percentage contributions for every individual person, and payroll deductions will differ from employee to employee based solely on their age.

Composite Rates (Tiered Rating)

Composite rating simplifies the math. The carrier takes the total cost of all the age-banded rates combined, divides it by the total number of enrolling employees, and produces a single, flat average rate for different tiers.

For example, the carrier might offer a four-tier composite structure:

• Employee Only: $550/month
• Employee + Spouse: $1,150/month
• Employee + Child(ren): $1,050/month
• Family: $1,600/month

The advantage: Administration is incredibly straightforward. Every employee enrolling in “Employee Only” coverage has the exact same payroll deduction, regardless of whether they are 24 or 61. It makes communicating benefits to the staff much easier. The disadvantage: The composite rate is locked in based on the snapshot of the group at enrollment. If several young, inexpensive employees quit mid-year and are replaced by older employees, the carrier will continue charging the $550 flat rate until the annual renewal, at which point the composite rate will jump significantly to reconcile the difference.

Note: In Maryland, small groups (1-50) are primarily quoted using age-banded rates to comply with ACA community rating rules, though some carriers will automatically calculate and allow a composite billing structure for the employer’s convenience. Large groups (51+) almost exclusively use composite rating.

Participation and Contribution Requirements

Insurance carriers need a broad, healthy risk pool to make a fully insured plan financially viable. If only the sickest employees enroll in the plan, the carrier will suffer massive losses. To prevent this “adverse selection,” carriers enforce strict rules regarding how many employees must join the plan and how much the employer must pay.

The Minimum Contribution Rule

To encourage healthy employees to enroll, the employer must subsidize a significant portion of the cost. In Maryland, carriers generally require the business to pay a minimum of 50% of the employee-only premium.

If the employee’s monthly premium is $600, the business must pay at least $300 of that cost. The employer is not required by the carrier to contribute anything toward the cost of spouses or dependents, though many competitive employers choose to cover a percentage of dependent costs to attract top talent.

Contribution Strategies:

• Flat Percentage: The employer pays 50% (or 75%, or 100%) of the employee’s premium across the board.
• Defined Dollar Amount: The employer contributes a flat $400 per month per employee; the employee pays whatever premium balance remains.
• Base/Buy-Up Strategy: The employer pays 80% of a cost-effective “Base” plan (like an HMO). If the employee wants a more expensive, flexible “Buy-Up” plan (like a PPO), the employer still only contributes the dollar value of the HMO subsidy, and the employee pays 100% of the premium difference. This is the most effective way to offer premium choices without inflating the company budget.

The Minimum Participation Rule

Carriers also mandate that a certain percentage of your workforce actually enrolls in the plan. The standard requirement in Maryland is 75% of eligible employees.

However, this math is highly forgiving if your employees already have coverage elsewhere. The carrier allows for “valid waivers.” If an employee declines your plan because they are on their spouse’s group plan, enrolled in Medicare, enrolled in Medicaid, or covered by a parent’s policy (under age 26), they do not count against your participation percentage.

Example Calculation: You have 10 eligible full-time employees.

• 3 employees waive coverage because they are on a spouse’s plan.
• You now only have 7 “net eligible” employees.
• To meet the 75% rule, you need 75% of 7 people to enroll.
• 7 x 0.75 = 5.25.
• You need 6 employees to enroll to successfully launch the plan.

The ACA Special Enrollment Window (The Loophole)

If you have a young startup workforce that mostly waives coverage because they simply don’t want to spend the money, hitting that 75% participation mark can be difficult.

The ACA provides a critical annual loophole. Between November 15 and December 15 every year, small employers (1-50 FTEs) can apply for a January 1 effective date, and the insurance carrier must accept the group regardless of participation or contribution levels. During this window, you could have a 20-person company where only 2 people enroll, and the employer contributes 0% toward the premium, and the carrier is legally obligated to issue the fully insured policy.

The Reality of Day-to-Day HR Administration

For a business owner or an HR department of one, the administrative burden of a health plan is a massive factor. Fully insured plans are the industry standard largely because they require the least amount of operational lifting from the employer.

What the Carrier Handles

Because the insurance company is taking the risk, they also assume the heavy administrative and compliance burdens:

• Claims Adjudication: The carrier processes the doctor’s bills, applies the network discounts, calculates the deductible, and pays the providers. The employer never sees an employee’s medical bill, ensuring strict HIPAA privacy compliance.
• Provider Networks: The carrier manages the contracting with Maryland hospital systems (like Johns Hopkins, MedStar Health, and University of Maryland Medical System) to build the HMO, EPO, or PPO networks.
• Compliance and Document Creation: The carrier generates the Summary of Benefits and Coverage (SBC), the official plan documents, and issues the physical ID cards to the employees.
• Legal Defense: If a coverage dispute escalates to litigation regarding a denied claim, the insurance carrier’s legal team handles the defense; the employer is shielded.

What the Employer/HR Handles

The employer’s operational role in a fully insured plan is largely confined to eligibility management and billing:

• Onboarding and Offboarding: HR must log into the carrier’s portal (or use their broker’s benefits administration software) to add new hires to the plan when they complete their waiting period, and to terminate coverage when an employee leaves the company.
• Managing Qualifying Life Events (QLEs): When an employee has a baby, gets married, or loses spousal coverage, HR must process that mid-year enrollment change within 30 days.
• Reconciling the Monthly Invoice: The carrier sends one consolidated bill each month. HR must verify that the roster of names on the bill perfectly matches the internal payroll records to ensure the company isn’t paying premiums for terminated staff.
• Payroll Deductions: HR must correctly configure the pre-tax premium deductions in the company payroll system.

Compared to managing a self-funded plan—where HR might be involved in evaluating stop-loss contracts, reviewing aggregated claims data to spot high-cost trends, and managing separate third-party administrator (TPA) relationships—fully insured administration is highly automated and low-maintenance.

Maryland State Mandates and Regulatory Oversight

A crucial distinction of fully insured group plans is their regulatory environment. While self-funded health plans are governed almost exclusively by federal ERISA (Employee Retirement Income Security Act) law, fully insured plans operate at the state level.

In Maryland, fully insured policies are strictly regulated by the Maryland Insurance Administration (MIA). Because they fall under state jurisdiction, these plans are legally required to include coverage for a wide array of state-specific healthcare mandates.

Essential Health Benefits (EHBs)

All small group fully insured plans must cover the ACA’s ten Essential Health Benefits, which include hospitalization, prescription drugs, maternity and newborn care, mental health and substance use disorder services, and preventive care.

Maryland-Specific Mandates

Beyond the federal EHBs, the Maryland legislature frequently passes laws requiring fully insured carriers to cover specific treatments and services. Examples of Maryland mandates include:

• In Vitro Fertilization (IVF): Maryland law requires fully insured group plans to cover IVF services if they cover other pregnancy-related benefits, subject to specific patient qualification criteria.
• Autism Spectrum Disorder: Carriers must provide coverage for the diagnosis and treatment of autism, including behavioral health treatments like Applied Behavior Analysis (ABA).
• Habilitative Services: Coverage must be provided for children with congenital or genetic birth defects to enhance the child’s ability to function.
• Prosthetic Devices: Coverage for artificial limbs must be offered at a level equal to the federal Medicare program standard.

The Financial Impact of Mandates: State mandates ensure that Maryland employees have access to highly comprehensive, consumer-friendly medical coverage. However, these mandates are not free. Carriers price the cost of these mandatory benefits into the standard premium. This is why a fully insured small group plan in Maryland might carry a higher baseline premium than a self-funded plan, which is legally allowed to exclude state mandates and carve out specific coverage requirements.

Fully Insured vs. Alternative Funding Options

While fully insured is the most common model, it is not the only option. Business owners must evaluate how the traditional model stacks up against alternative funding mechanisms before locking in a decision.

Fully Insured vs. Level-Funded

Level-funding is the closest competitor to a fully insured plan for healthy small-to-mid-sized businesses. In a level-funded plan, the employer still pays a fixed monthly amount, but that money is divided into three buckets: administrative fees, stop-loss insurance premiums, and a claims fund.

• The Catch: Level-funded plans in the small group market require medical underwriting. Employees must fill out health questionnaires. If the group has complex health conditions, the carrier will decline the group or rate it prohibitively high.
• The Verdict: If your Maryland team is exceptionally healthy, level-funding can offer a surplus refund at the end of the year and bypass costly state mandates. If your team has older members or known medical conditions, a fully insured, community-rated plan is the safer, guaranteed-issue sanctuary.

Fully Insured vs. ICHRA

An Individual Coverage HRA (ICHRA) allows employers to abandon the group policy entirely. Instead, the business offers a tax-free monthly allowance, and employees use that money to buy their own plan on Maryland Health Connection (the state exchange) or off-exchange.

• The Catch: Pushing employees to the individual market can be a jarring cultural shift. The individual market networks (HMOs/EPOs) are often narrower than robust fully insured group PPO networks.
• The Verdict: ICHRA is excellent for employers who want total cost control or who have a highly dispersed workforce across multiple states. Fully insured remains superior for employers focused on talent retention, unified company culture, and offering premier national PPO access.

Fully Insured vs. Association Health Plans (AHPs)

An AHP allows multiple small businesses within a specific industry or geography to band together to purchase large-group coverage.

• The Catch: AHPs have strict membership requirements (e.g., you must be a member of the Maryland Chamber of Commerce or a specific trade association) and are medically underwritten.
• The Verdict: AHPs can be a powerful tool to secure large-group rates for a small business, but if your company doesn’t fit the industry profile or has poor health history, the standard fully insured market is the fallback.

Designing the Fully Insured Plan Structure

Once you commit to a fully insured funding model, you must decide what the actual coverage looks like. Maryland carriers (such as CareFirst BlueCross BlueShield, UnitedHealthcare, Aetna, and Kaiser Permanente) offer a spectrum of plan architectures.

Network Types: HMO, EPO, and PPO

The network dictates which doctors employees can see and how those visits are coordinated.

• HMO (Health Maintenance Organization): The most restrictive, but most cost-effective. Employees must select a Primary Care Physician (PCP) who acts as a gatekeeper. If an employee wants to see a dermatologist, they must get a referral from the PCP first. There is zero out-of-network coverage (except in true emergencies).
• EPO (Exclusive Provider Organization): A hybrid. Like an HMO, there is no out-of-network coverage. Like a PPO, employees do not need a PCP referral to see an in-network specialist. This is becoming the dominant network type in the small group market.
• PPO (Preferred Provider Organization): The gold standard of flexibility. No PCP requirements, no referrals, and employees have out-of-network benefits (meaning the plan will still pay a percentage of the cost if they see a doctor who doesn’t take the insurance). PPOs are the most expensive network designs.

Structuring Multi-Plan Offerings (Base and Buy-Up)

A common mistake employers make is trying to find a single plan that satisfies both the entry-level coordinator who wants cheap premiums and the executive who wants nationwide PPO access. The fully insured model solves this through multi-plan offerings.

An employer can select two or three plans from the same carrier.

1. The Base Plan: A Gold-tier HMO with a $1,500 deductible. The employer sets their contribution based on this plan (e.g., paying 80% of it).
2. The Buy-Up Plan: A Platinum-tier PPO with a $0 deductible. If an employee wants this premium coverage, they can select it, but the employee absorbs 100% of the premium difference via a larger payroll deduction.

This multi-plan strategy aggregates all enrolled employees together to satisfy the carrier’s 75% minimum participation rule, keeping HR administration unified under one carrier portal while providing diverse choices to the staff.

Tax Implications and Section 125 Compliance

A fully insured group health plan offers immense tax advantages for both the business and the employees, provided it is structured correctly.

Employer Tax Deductibility

For the business owner, every dollar spent contributing to a fully insured group health premium is 100% tax-deductible as a standard business expense. It lowers the company’s taxable net income.

Section 125 Premium Only Plan (POP)

To allow your employees to pay their portion of the monthly premium with pre-tax dollars, the business must establish a Section 125 Premium Only Plan (POP) document.

If you do not have a Section 125 POP in place, you must deduct the employee’s premium share from their net pay after taxes have been applied. This makes the insurance much more expensive for the employee.

By utilizing a Section 125 POP:

1. The Employee Wins: The premium is deducted from their gross pay before federal, state, and FICA taxes are calculated. Their taxable income is lowered, saving them money.
2. The Employer Wins: Because the employee’s taxable income is lowered, the employer’s matching payroll taxes (FICA/Medicare) on that income are also lowered. The tax savings generated for the employer usually more than covers the nominal fee required to set up the Section 125 document.

The Annual Renewal Cycle

Fully insured contracts run on a 12-month cycle. Approximately 60 to 90 days before your plan anniversary, the carrier will issue a renewal offer. Understanding how this renewal is generated is critical.

Small Group Renewals

For employers with 1-50 FTEs, remember that you are community-rated. The carrier does not look at how many claims your employees filed last year. The renewal increase is driven by two factors:

1. Medical Trend: The state-approved baseline increase for healthcare inflation in Maryland.
2. Age Progression: Every employee is one year older, sliding them slightly further up the age-banded rate table.

Because small group rates are fixed by the state, you cannot negotiate a small group renewal. Your broker’s job at this stage is to map the market—pulling quotes from competing carriers in Maryland to see if another insurance company has filed a more aggressive community rate for the upcoming year that beats your current carrier’s renewal.

Large Group Renewals

For employers with 51+ FTEs, the renewal is highly dependent on your group’s specific claims experience. If your Medical Loss Ratio (the ratio of premiums paid versus claims incurred) was poor, the carrier will demand a massive increase—sometimes 20% or 30%.

Unlike small groups, large group renewals are an active negotiation. A skilled broker will demand the carrier’s underwriting rationale, dispute excessive trend factors, and leverage competitive quotes from other carriers to force the incumbent carrier to lower their initial renewal ask.

Step-by-Step: Implementing a Fully Insured Plan in Maryland

If you are setting up a fully insured plan for the first time, the timeline is rigid. You generally need to start the process 45 to 60 days before you want the coverage to begin.

1. Gather the Census: You must build an accurate spreadsheet of your eligible employees. The carrier needs the date of birth, home ZIP code, gender, and the expected enrollment tier (Single, Family, etc.) for every employee. Without a precise census, no carrier can generate an accurate age-banded or composite quote.
2. Shop the Market: Your broker will submit the census to the major Maryland carriers (CareFirst, UHC, Aetna, etc.) to generate proposals.
3. Select the Plan Architecture: You evaluate the proposals, decide between HMO/EPO/PPO networks, and finalize your multi-plan strategy (e.g., offering one Silver plan and one Gold plan).
4. Set the Contribution Strategy: You decide on the corporate budget—whether you are paying 50% of the single premium, 75%, or utilizing a defined dollar strategy.
5. Open Enrollment: HR conducts an open enrollment period (usually lasting 1 to 2 weeks). Employees review the options, look up their doctors in the carrier network directories, and submit their enrollment or valid waiver forms.
6. Submit to the Carrier: The final enrollment data is sent to the carrier for processing. It is critical to submit this by the 15th of the month prior to the effective date to ensure ID cards arrive on time.
7. Configure Payroll: HR updates the payroll system with the new pre-tax deduction amounts to align with the first paycheck of the new coverage month.

Frequently Asked Questions