Health Savings: Frequently Asked Questions

Tax-advantaged health accounts — Health Savings Accounts (HSAs), Flexible Spending Accounts (FSAs), and Health Reimbursement Arrangements (HRAs) — operate under distinct IRS rules that govern who qualifies, how much can be contributed, and what expenses are reimbursable. This page addresses the most common questions across all three account types, covering eligibility thresholds, regulatory triggers, professional roles, and practical administration. Understanding how these frameworks interact is essential for both individual accountholders and employers who sponsor benefit plans. The National Health Savings Authority home page provides a broader orientation to the topics addressed here.

How do requirements vary by jurisdiction or context?

Federal law establishes the foundational rules for HSAs, FSAs, and HRAs through the Internal Revenue Code — primarily Sections 223, 125, and 105/106 respectively. However, state tax treatment diverges significantly. As of 2024, California and New Jersey do not conform to federal HSA tax exclusions, meaning HSA contributions and earnings remain subject to state income tax in those two states. Residents in those jurisdictions must file state returns that add back HSA deductions taken federally.

For employer-sponsored FSAs, the Employee Retirement Income Security Act (ERISA) imposes plan document, summary plan description, and claims procedure requirements that apply at the federal level regardless of state. Small employers using a Qualified Small Employer HRA (QSEHRA) must comply with notice requirements under the 21st Century Cures Act, including providing written notice to employees at least 90 days before each plan year.

Self-employed individuals face a distinct context: they may contribute to an HSA if enrolled in a qualifying High-Deductible Health Plan (HDHP), but they cannot participate in an employer-sponsored FSA. The state tax treatment of HSAs page documents which states follow federal conformity and which impose separate tax obligations.

What triggers a formal review or action?

The IRS initiates scrutiny of health account usage through three primary channels: Form 8889 discrepancies on individual returns, employer Form W-2 coding errors, and third-party administrator (TPA) reporting irregularities on Form 5498-SA. An excess HSA contribution — any amount above the annual limit set by IRS Revenue Procedures (for 2024: $4,150 for self-only coverage and $8,300 for family coverage under IRS Rev. Proc. 2023-23) — triggers a 6% excise tax under IRC §4973 for each year it remains uncorrected.

FSA noncompliance at the plan level — such as a failed Section 125 cafeteria plan or improper mid-year election changes — can cause the IRS to recharacterize all participant elections as taxable income, affecting the entire plan population rather than a single employee. HRAs that fail to satisfy the requirements of IRS Notice 2013-54 or subsequent guidance may lose tax-exempt status.

Employers are audited under both IRS and Department of Labor (DOL) authority when benefit plan documentation is incomplete or when ERISA fiduciary standards appear unmet. Excess contribution correction procedures are detailed at /excess-contribution-correction-procedures.

How do qualified professionals approach this?

Benefits attorneys, Certified Employee Benefit Specialists (CEBS), and licensed TPAs each handle distinct layers of health account administration. Benefits attorneys analyze plan documents against current IRS guidance and ERISA requirements, particularly when employers design custom HRA structures such as an Individual Coverage HRA (ICHRA). CPAs and Enrolled Agents (EAs) handle Form 8889 preparation, excess contribution corrections, and state tax reconciliation.

TPAs administer day-to-day claims adjudication, substantiation of FSA expenses, and COBRA administration for FSA accounts. When an employer transitions from one TPA to another mid-year, account continuity and data transfer protocols must comply with the original plan document terms.

For individual accountholders managing HSA investment options, registered investment advisers (RIAs) can provide guidance on fund selection within custodian platforms, though the custodian itself — a bank, insurance company, or IRS-approved nonbank trustee under IRC §223(d)(1) — bears fiduciary responsibility for account structure.

What should someone know before engaging?

Before opening any health account, four threshold questions must be answered:

  1. Account type eligibility — HSA participation requires enrollment in an IRS-qualified HDHP with a minimum deductible of $1,600 (self-only) or $3,200 (family) for 2024 (IRS Rev. Proc. 2023-23). FSA eligibility requires employer sponsorship of a Section 125 plan. HRA eligibility requires employer funding — employees cannot contribute.
  2. Coordination restrictions — Holding a general-purpose FSA while simultaneously contributing to an HSA is prohibited unless the FSA is a Limited-Purpose FSA restricted to dental and vision expenses.
  3. Contribution deadlines — HSA contributions for a tax year may be made until the federal tax filing deadline (typically April 15 of the following year). FSA elections are locked at open enrollment except under qualifying status change events.
  4. Portability differences — HSA funds are owned by the individual and fully portable. FSA balances are generally forfeited under the use-it-or-lose-it rule unless the employer adopts a grace period or carryover provision. HRA balances remain employer property; portability depends entirely on plan design.

The HSA eligibility requirements page provides a detailed breakdown of disqualifying coverage scenarios.

What does this actually cover?

The qualified expense list for HSAs, FSAs, and HRAs is grounded in IRC §213(d), which defines medical care expenses as amounts paid for the diagnosis, cure, mitigation, treatment, or prevention of disease. The IRS publishes Publication 502 as the primary reference document for individual accountholders.

Expenses that qualify under all three account types include: physician and specialist fees, prescription drugs, dental and orthodontic care, vision correction (glasses, contacts, LASIK), mental health services, and qualifying medical equipment. The CARES Act (enacted in 2020) permanently reinstated over-the-counter medications and menstrual care products as qualified expenses without a prescription requirement.

Expenses that do not qualify include: cosmetic surgery (absent a qualifying medical necessity determination), gym memberships (absent specific medical necessity documentation), and insurance premiums — with the notable exception that HSA funds may be used tax-free to pay Medicare Part B, Part D, and Medicare Advantage premiums after age 65, as outlined at /hsa-and-medicare.

What are the most common issues encountered?

Five categories of errors account for the majority of health account compliance problems identified in IRS audit guidance and TPA experience:

  1. Ineligible HDHP enrollment — Accountholders contribute to an HSA while covered by a secondary insurance plan (such as a spouse's FSA or a non-HDHP policy) that disqualifies HSA contributions under IRC §223(c)(1).
  2. Non-qualified expense reimbursement — Withdrawing HSA funds for expenses that do not meet the §213(d) standard triggers ordinary income tax plus a 20% additional tax penalty for accountholders under age 65 (/hsa-non-qualified-withdrawals-and-penalties).
  3. FSA substantiation failures — Debit card transactions that are not substantiated through documentation or auto-approval systems create taxable income for the employee.
  4. Excess contributions — Over-contributing to either an HSA or FSA and failing to remove the excess before the tax deadline results in excise taxes and potential late-filing penalties.
  5. Missing plan documents — Employers operating FSAs or HRAs without a formal written plan document violate ERISA §402 and expose themselves to IRS disqualification of the entire benefit arrangement.

A comprehensive review of these pitfalls is available at /hsa-mistakes-to-avoid.

How does classification work in practice?

The IRS applies a facts-and-circumstances test to classify health account transactions. For HSA purposes, the custodian issues Form 1099-SA reporting all distributions, but does not categorize them as qualified or non-qualified — that determination rests with the accountholder on Form 8889. This places the documentation burden squarely on the individual.

For FSAs and HRAs, the TPA performs first-line substantiation using one of three methods recognized under IRS Notice 2006-69 and Rev. Rul. 2003-43:

When a transaction does not clear auto-adjudication, the accountholder must submit documentation within the plan's claim filing deadline — typically 90 days after the plan year ends, though plan documents set the controlling deadline. HSA vs. FSA vs. HRA classification boundaries are contrasted in detail at /hsa-vs-fsa-vs-hra-overview-and-comparison.

What is typically involved in the process?

Opening and operating a health account involves four discrete phases that apply across all account types, with variation by account structure:

Phase 1 — Eligibility determination. The individual or employer confirms HDHP enrollment status (for HSAs), verifies employer plan availability (for FSAs), or establishes employer design parameters (for HRAs). The HDHP requirement for HSA eligibility page documents the specific deductible and out-of-pocket maximum thresholds that must be met annually.

Phase 2 — Account establishment. HSA accountholders select an IRS-approved custodian and complete an account agreement. FSA and HRA participants are enrolled through their employer's benefit platform during open enrollment or upon a qualifying life event.

Phase 3 — Contribution and funding. Contributions flow through payroll deduction (pre-tax under §125 for FSAs) or direct deposit (tax-deductible for HSAs). Employer HRA funding is credited to the employee's notional account on a schedule defined in the plan document. Annual HSA contribution limits are indexed for inflation and published each year in an IRS Revenue Procedure.

Phase 4 — Distribution and reporting. Accountholders submit claims or use debit cards for FSAs and HRAs; HSA distributions are self-directed. At tax time, HSA activity is reported on Form 8889, FSA employer contributions appear in Box 12 of Form W-2 (Code W), and HRA reimbursements are generally excluded from gross income under IRC §105(b) provided substantiation requirements are met. Employers with cafeteria plans under Section 125 must also maintain annual nondiscrimination testing documentation to preserve pre-tax treatment for all eligible employees.

The law belongs to the people. Georgia v. Public.Resource.Org, 590 U.S. (2020)