What Is an MLR Rebate? How It’s Calculated and Who Gets It

An MLR rebate is money your health insurance company owes you when it spent too little of your premium on medical care. Under the Affordable Care Act’s medical loss ratio rule, individual and small group insurers must put at least 80% of premium revenue toward clinical care and quality improvement, and large group insurers must hit 85%. If they fall short, they refund the difference. In 2024, insurers paid roughly $1.64 billion in rebates to about 8.6 million consumers, averaging $192 per person.¹

The 80/20 Rule That Triggers a Rebate

Federal regulations fix how much of every premium dollar has to go to patient care. The floor is 80% in the individual and small group markets and 85% in the large group market.² The rest can go to overhead, marketing, executive pay, and other administrative costs. When an insurer’s spending on care drops below the applicable threshold, the shortfall is owed back to policyholders.

The small group market generally covers employers with up to 50 full-time workers. States can set a higher MLR standard than the federal floor, so the 80% and 85% figures are minimums rather than ceilings.

Only two kinds of spending count toward the ratio on the care side: direct clinical services and qualifying quality improvement activities. Advertising, broker commissions, executive salaries, lobbying, and general overhead do not count.

How the Rebate Is Calculated

The rebate rate is the gap between the insurer’s actual MLR and the required minimum. If an individual market insurer hits 75% instead of 80%, that five-point shortfall is applied to total premium revenue in that market and state, after subtracting federal and state taxes, licensing fees, and risk adjustment and reinsurance adjustments.³

The MLR itself is not a single-year snapshot. It aggregates data across multiple reporting years and applies a credibility adjustment that reflects the statistical reliability of a given insurer’s claims experience, which smooths out year-to-year swings.⁴ Each enrollee’s share of the final pool is proportional to the premiums they paid during the reporting year. Insurers run the calculation separately for the individual, small group, and large group markets in each state.

Not every rebate goes out. If the amount owed to a group policyholder is under $20, or under $5 for a rebate paid directly to an individual subscriber, the insurer can skip the payment.⁵

Who Receives the Rebate

Where your rebate ends up depends on how you bought your coverage.

If You Bought Your Own Plan

In the individual market, the insurer sends the rebate directly to you. It can come as a check, a credit to the card or bank account you used to pay premiums, or a credit applied to your next monthly premium.⁶ When a premium credit exceeds a single month’s bill, the balance carries forward until the full rebate is used.³

If You Have an Employer Plan

For most employer-sponsored group coverage, the insurer sends the rebate to the employer rather than to employees. What happens next depends on who paid the premiums. If employees contributed any share of the cost, the portion of the rebate tied to those contributions is a plan asset under ERISA, and the employer has a fiduciary duty to pass it along.⁷

If your employer paid 100% of the premium, the entire rebate belongs to the employer. You won’t see anything, even if the insurer missed its MLR target.⁷

When employees are owed a share, the employer generally has three months from receipt to distribute it. The money can come as a cash payment, a premium holiday that skips a paycheck deduction, or improvements to current plan benefits.⁷ State and local government plans and church plans sit outside ERISA, but the rules work similarly: the employer must either reduce upcoming premiums or pay employees their share in cash.⁸

Is the Rebate Taxable?

Whether your rebate is taxable depends on how you paid your premiums and whether you took a deduction.

Individual market, no deduction claimed: not taxable. The IRS treats the rebate as a purchase-price adjustment on premiums you already paid with after-tax dollars.⁹
Individual market, deduction claimed: taxable to the extent you received a tax benefit from the deduction, whether it was itemized or the self-employed health insurance deduction.⁹
Employer plan, premiums paid pre-tax through a cafeteria plan: a cash rebate is taxable income and subject to employment taxes.⁹
Employer plan, premiums paid after-tax with no deduction claimed: not taxable, and not subject to employment taxes.⁹

The pre-tax scenario catches people most often. If your premiums are deducted from your paycheck before taxes through a Section 125 cafeteria plan, a cash rebate adds to your W-2 income for the year. Your employer should handle the withholding; it’s worth checking your pay stub when the rebate arrives.

When Rebates Have to Be Paid

Insurers file their annual MLR reports with the Department of Health and Human Services by July 31 of the year after the reporting year.¹⁰ Any rebate owed has to reach policyholders by September 30. When the rebate comes as a premium credit, it must be applied to a monthly premium no later than October 30.³

Insurers that miss the September 30 deadline owe interest on top of the rebate at the higher of the Federal Reserve Board’s lending rate or 10% annually, accruing from the date the payment was due.³

Alongside the payment, insurers must send a notice explaining the MLR figure, the applicable standard, the rebate percentage, and the amount owed. Even insurers that met the standard send a basic notice, so every enrollee receives MLR information whether or not a rebate is due.¹¹

If You Think You’re Owed a Rebate and Haven’t Received One

Where to complain depends on your coverage. Employees in employer-sponsored plans can contact the Department of Labor’s Employee Benefits Security Administration at 1-866-444-3272 if the issue is how the employer handled the rebate. If the problem is with the insurer’s MLR calculation itself, contact HHS at MLRquestions@cms.hhs.gov.¹²

Individual market policyholders and people in state, local government, or church plans should go directly to HHS at the same address. Federal employees should contact the Office of Personnel Management.¹²

Before filing, check two things. If your calculated share falls below $5 individually or $20 at the group policy level, the insurer isn’t required to send it. And if your employer paid 100% of the premium, the rebate legally belongs to the employer no matter how large it is.

1
Centers for Medicare & Medicaid Services. 2024 MLR Rebates by State
2
eCFR. 45 CFR 158.210 – Minimum Medical Loss Ratio
3
eCFR. 45 CFR 158.240 – Rebating Premium if the Applicable Medical Loss Ratio Standard Is Not Met
4
eCFR. 45 CFR 158.221 – Formula for Calculating an Issuer’s MLR
5
eCFR. 45 CFR 158.243 – De Minimis Rebates
6
eCFR. 45 CFR 158.241 – Form of Rebate
7
U.S. Department of Labor. Technical Release No. 2011-04 – Guidance on Rebates for Group Health Plans
8
Centers for Medicare & Medicaid Services. Notice of Health Insurance Premium Rebate
9
Internal Revenue Service. Medical Loss Ratio (MLR) FAQs
10
eCFR. 45 CFR 158.110 – Reporting Requirements Related to Premiums and Expenditures
11
Federal Register. Medical Loss Ratio Requirements Under the Patient Protection and Affordable Care Act
12
Department of Labor. FAQs About Medical Loss Ratio (MLR) Insurance Rebate