Health Accounts and ACA Compliance

The Affordable Care Act (ACA) established a layered framework of requirements that directly shape how Health Savings Accounts (HSAs), Flexible Spending Accounts (FSAs), and Health Reimbursement Arrangements (HRAs) operate alongside individual and employer-sponsored coverage. Understanding where these accounts intersect with ACA mandates is essential for employers designing compliant benefit packages and for individuals selecting account-eligible plans. This page covers the definition and scope of ACA compliance as it applies to health accounts, the operational mechanisms involved, common compliance scenarios, and the boundaries where account eligibility is affected by ACA rules.

Definition and scope

The ACA, enacted as Public Law 111-148 in 2010, introduced requirements affecting both the structure of qualifying health coverage and the permissible design of employer-sponsored accounts. The law is codified primarily in Title 26 (Internal Revenue Code), Title 29 (ERISA), and Title 42 (Public Health Service Act), with IRS and Department of Labor (DOL) regulations implementing its provisions.

For health accounts, ACA compliance intersects in three primary domains:

1. HSA-qualified High-Deductible Health Plan (HDHP) standards — The ACA's market reform rules must be satisfied by the HDHP underlying an HSA without disqualifying the account's tax status.
2. Preventive care mandates — ACA Section 2713 requires non-grandfathered plans to cover specified preventive services without cost-sharing. This interacts directly with HDHP minimum deductible thresholds.
3. HRA integration requirements — Post-2013 IRS and DOL guidance (formalized through regulations implementing ACA market reforms) restricts how standalone HRAs can be structured, leading to the creation of the Individual Coverage HRA (ICHRA) framework in 2019 under Treasury regulations at 26 C.F.R. § 1.105-17.

The full regulatory context for health savings — including applicable IRS notices and DOL technical releases — governs how these rules apply in practice.

The ACA's essential health benefits (EHB) framework and annual out-of-pocket maximum limits (set by the Department of Health and Human Services, HHS) also define the outer boundaries of compliant plan design when accounts are paired with marketplace or employer-sponsored coverage.

How it works

ACA compliance for health accounts operates through a series of coordination rules rather than a single requirement. The mechanism differs by account type.

HSA and HDHP interaction with ACA market reforms

An HDHP must satisfy ACA market reforms — including coverage of preventive services at no cost — without breaching the IRS minimum deductible requirement. The IRS addressed this conflict directly in Notice 2013-57 and Notice 2004-23, confirming that providing ACA-mandated preventive care before the deductible is met does not disqualify a plan as an HDHP. For 2024, the IRS minimum HDHP deductible is $1,600 (self-only) and $3,200 (family) (IRS Revenue Procedure 2023-23).

ACA out-of-pocket maximum and HSA limits

ACA Section 1302(c) requires non-grandfathered plans to cap annual out-of-pocket costs. HHS sets this ceiling annually; for 2024, the ACA out-of-pocket maximum is $9,450 (self-only) and $18,900 (family) (HHS 2024 Notice of Benefit and Payment Parameters). The IRS sets a separate out-of-pocket maximum for HDHP qualification purposes: $8,050 (self-only) and $16,100 (family) for 2024. Because the IRS HDHP ceiling is lower than the ACA ceiling, HDHP plan designs must satisfy the more restrictive IRS standard to preserve HSA eligibility.

HRA integration and ACA market reforms

Prior to 2014 guidance, employers used standalone HRAs to reimburse employees for individual market premiums or medical expenses outside a group plan. IRS Notice 2013-54 and DOL Technical Release 2013-03 established that such standalone HRAs violated ACA's annual dollar limits prohibition and market reform requirements. The ICHRA rules finalized in 2019 created a compliant path: an ICHRA can reimburse individual market premiums if the employee is enrolled in qualifying individual coverage, as detailed at types of HRAs: QSEHRA, ICHRA, and traditional.

FSA and ACA

FSAs must comply with ACA's $2,750 cap on healthcare FSA salary reductions (indexed; the 2024 limit is $3,200 per IRS Revenue Procedure 2023-34). FSAs are also subject to ACA's prohibition on reimbursing over-the-counter medications without a prescription — a restriction modified by the CARES Act in 2020, which reinstated OTC reimbursement without prescription requirements.

Common scenarios

Scenario 1: Employer offers an HDHP with HSA plus ACA preventive care mandate
The employer's HDHP must cover preventive services listed under USPSTF A/B ratings, ACIP immunization schedules, and HRSA women's preventive guidelines at zero cost-sharing before the deductible. Under IRS Notice 2013-57, this coverage does not disqualify the plan as an HDHP. Employees retain full HSA eligibility.

Scenario 2: Small employer uses QSEHRA alongside ACA individual market coverage
A small employer (fewer than 50 full-time equivalent employees) uses a Qualified Small Employer HRA (QSEHRA) to reimburse employee premiums for ACA marketplace plans. The QSEHRA is capped at $6,150 (self-only) and $12,450 (family) for 2024 (IRS Notice 2023-75). The QSEHRA amount reduces the employee's premium tax credit dollar-for-dollar under ACA Section 36B, requiring coordination when the employee is eligible for marketplace subsidies.

Scenario 3: Large employer transitions from group plan HRA to ICHRA
An employer with 50 or more full-time equivalents — subject to ACA employer shared responsibility under IRC § 4980H — may use an ICHRA to satisfy the ACA's employer mandate, provided the ICHRA meets affordability standards set by the IRS. The ICHRA affordability safe harbor is calculated differently from the traditional employer-sponsored plan affordability threshold, which for 2024 is 9.02% of household income (IRS Revenue Procedure 2023-29).

Scenario 4: Limited-purpose FSA paired with HSA on ACA marketplace plan
An individual enrolled in an ACA marketplace HDHP who also has access to an employer FSA must use a limited-purpose FSA — restricted to dental and vision expenses — to preserve HSA eligibility. A general-purpose FSA providing medical expense reimbursement before the HDHP deductible is met disqualifies HSA contributions for that period.

Decision boundaries

The compliance status of a health account arrangement depends on several discrete classification points. The table below summarizes the primary boundaries.

Grandfathered vs. non-grandfathered plans represent a second boundary layer. ACA market reforms — including the preventive care mandate and out-of-pocket maximum — apply only to non-grandfathered plans. Grandfathered plans, as defined under 45 C.F.R. § 147.140, are exempt from Section 2713 preventive care requirements but must still satisfy other ACA provisions. Employers maintaining grandfathered HDHP status must document the plan's continuity since March 23, 2010, to preserve that exemption.

ACA employer mandate and ICHRA affordability form a third boundary. The IRC § 4980H employer shared responsibility payment is avoided only when ICHRA contributions meet the affordability safe harbor. An ICHRA that does not satisfy affordability still exposes the employer to potential assessable payments under IRC § 4980H(b) if even one full-time employee receives a premium tax credit on the marketplace. Employers navigating this boundary should reference the main index of health account topics and consult the IRS's final ICHRA regulations at 26 C.F.R. § 1.36B-2.

References

- Internal Revenue Service — Revenue Procedure 2023-23 (HSA/HDHP Limits 2024)

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