Spousal Carve Out: What It Is, Legalities & 2026 Guide

TL;DR

A spousal carve out is a plan rule that makes an employee’s spouse ineligible for the employer’s group health coverage when that spouse has access to their own employer’s plan. It differs from a spousal surcharge, which still allows enrollment but adds an extra monthly fee. The ACA does not require employers to cover spouses, so carve outs are legally feasible for most employers, though compliance with HIPAA nondiscrimination rules, state marital-status laws, and Medicare/TRICARE prohibitions is essential.

What Is a Spousal Carve Out?

A spousal carve out (sometimes called a working-spouse provision or spousal exclusion) is a group health plan rule that blocks a spouse from enrolling if they can get coverage through their own employer. The spouse isn’t banned from the plan permanently. They’re only excluded when they have another employer-sponsored option available to them.

Employers adopt spousal carve outs for a straightforward reason: cost control. Covering a spouse who already has access to their own plan doubles the exposure without adding real value. By directing that spouse to their own employer’s coverage, the plan sponsor reduces claims liability and premium spend. NFP’s compliance overview notes this is one of the most direct strategies employers use to manage rising health plan costs.

The carve out typically only applies when the spouse has access to another employer’s group coverage. If the spouse is self-employed, unemployed, or otherwise lacks employer-sponsored options, they remain eligible.

Spousal Carve Out vs. Spousal Surcharge vs. SIHRA

These three terms get mixed up constantly. Here’s how they differ:

Spousal carve out: The spouse is flat-out ineligible for the employee’s plan if they have access to their own employer coverage. No enrollment, period.

Spousal surcharge: The spouse can still enroll, but the employee pays an extra monthly premium for including them. According to the 2024 IFEBP survey, the average surcharge runs about $157 per month. Practitioners on Reddit report seeing surcharges ranging from $100 to $400 per month, depending on the employer and plan design.

Spousal Incentive HRA (SIHRA): The employer sets up a separate HRA that reimburses out-of-pocket costs when the employee’s spouse enrolls in the spouse’s own employer plan instead. It’s a carrot rather than a stick, but it comes with significant compliance requirements around Section 105(h) nondiscrimination, HSA compatibility, PCORI fees, and claims substantiation. Alliant’s analysis details how a SIHRA must integrate with the spouse’s employer group plan and cannot reimburse premiums paid pre-tax through the spouse’s Section 125 cafeteria plan.

The choice between these three approaches depends on how aggressively the employer wants to manage costs, how much administrative complexity they’re willing to absorb, and what their workforce will tolerate.

Is a Spousal Carve Out Legal?

Yes, in most cases. But the answer depends on several overlapping rules.

ACA Employer Mandate (Section 4980H)

The ACA’s employer shared responsibility provision requires applicable large employers to offer affordable coverage to full-time employees and their dependent children. Spouses are not included in that requirement. IRS guidance confirms this distinction, which is the foundational reason spousal carve outs are legally viable. Excluding a spouse from the plan does not trigger “pay or play” penalties as long as the employee and dependent children still receive a qualifying offer.

HIPAA Nondiscrimination

HIPAA’s nondiscrimination rules prevent eligibility decisions based on health status factors. A spousal carve out based on access to other employer coverage is not a health factor. It’s permissible as long as the rule applies uniformly to all similarly situated individuals. The key is consistency: every employee with a working spouse who has employer coverage gets the same treatment. 45 CFR 146.121 outlines the nondiscrimination framework.

ERISA Preemption vs. State Law

This is where things get tricky. Some states have marital-status nondiscrimination laws that could restrict spousal carve outs on fully insured plans. Self-funded ERISA plans are generally shielded from state insurance regulations through federal preemption. If you’re fully insured, check with your carrier and benefits counsel before implementing a carve out. NFP recommends coordinating with both to avoid running afoul of state-specific rules.

For employers with teams in multiple states, understanding how compliance requirements vary by location is critical. If you’re exploring alternatives like ICHRA, our state-by-state ICHRA compliance guide covers the geographic nuances.

Medicare and TRICARE Prohibitions

Two hard lines that employers cannot cross:

Federal rules under 42 CFR 411.103 prohibit employers from offering financial incentives to Medicare-eligible individuals (including spouses) to decline employer coverage when the employer plan would be primary. You cannot tie a spousal carve out or surcharge to Medicare status.

The same principle applies to TRICARE. Employers cannot design eligibility rules that steer TRICARE-eligible spouses away from the employer plan. Basing a carve out on TRICARE eligibility violates federal policy.

The practical takeaway: frame the carve out around “access to other employer-sponsored group coverage,” never around government program eligibility.

If you’re navigating these compliance questions and want personalized guidance, SimplyHRA’s benefits consultation can help you work through the details.

How Common Are Spousal Carve Outs?

More common than most employees realize, though still a minority practice. The numbers:

• 7.1% of plan sponsors use a spousal carve out, according to the 2024 IFEBP survey.
• 13.5% impose a spousal surcharge, with the average surcharge at $157 per month.
• The KFF 2024 Employer Health Benefits Survey found that among firms offering spousal coverage, 13% attach conditions like surcharges and 16% say spouses aren’t eligible at all.
• Mercer’s 2023 data for companies with 500+ employees shows 15% require a spousal surcharge, with a median of $100 per month.

The trend is upward. As health plan costs keep climbing, more employers are looking at spousal carve outs and surcharges as targeted interventions that don’t affect the core employee benefit. For employers exploring whether group insurance or individual coverage makes more sense for their situation, these numbers add context to the cost picture.

How to Implement a Spousal Carve Out: Admin Checklist

Getting the design right matters less than getting the documentation and process right. Here’s what IMA’s compliance guidance and other broker checklists recommend:

1. Amend Plan Documents and SPDs

The carve out must be written into the formal plan document and summary plan description. Vague language creates disputes. Specify exactly what triggers ineligibility (“spouse has access to employer-sponsored group health coverage”) and what exceptions apply.

2. Create a Spousal Coverage Affidavit

Require employees to certify whether their spouse has access to other employer coverage. Publish sample affidavits during open enrollment so employees know what to expect. Practitioners on Reddit note that many employees first encounter affidavits at open enrollment and find them confusing, so plain-language instructions go a long way.

3. Build a Verification Process

Decide who handles verification (internal HR, a third-party vendor, or the carrier). Set response timelines and outline consequences for false attestations. Periodic audits catch changes that employees don’t report.

4. Handle Midyear Changes

This is where most employers stumble. If a spouse loses access to their own employer plan midyear (job loss, employer drops coverage, etc.), HIPAA special enrollment rules give that spouse a 30-day window to enroll in the employee’s plan. The plan must honor this window. Similarly, if a surcharge applies and the spouse loses their own coverage, the employee should be able to request removal of the surcharge through the plan’s affidavit process.

One Reddit thread captures the real-world version of this problem: employees asking whether surcharges can be waived midyear when a spouse loses their job-based plan. The answer is yes, but only if the plan’s verification process supports it and the employee acts within the special enrollment period.

5. Communicate Early and Clearly

Announce the carve out well before open enrollment. Explain why it exists (cost containment that protects the plan for everyone), what it means practically, and what the employee needs to do. Specify what events remove a surcharge or restore eligibility. Employees who feel blindsided tend to resent the policy more than the policy itself warrants.

6. Coordinate with the Carrier (Fully Insured Plans)

For fully insured plans, the carrier must agree to the carve out design. State-level restrictions may limit what’s permissible. Start the conversation early in the renewal cycle.

How Spousal Carve Outs Interact with ICHRA

For employers considering or already offering an Individual Coverage HRA, the spousal carve out question takes on a different shape.

ICHRA reimburses premiums for individual market coverage or Medicare. It cannot reimburse premiums for enrollment on a spouse’s employer group plan. This is built into the 2019 final rule (84 FR 28888) that created the ICHRA framework. So if an employee’s spouse has a good group plan, the family faces a choice: enroll everyone on individual market plans to use the ICHRA, or join the spouse’s group plan and forgo the ICHRA for those premiums.

This means spousal carve outs are largely irrelevant for employers who have moved to ICHRA. There’s no group plan to carve the spouse out of. Instead, the employer sets class-based allowances and employees choose coverage that fits their family situation. Our guide on calculating employee classes by role explains how this works in practice.

One important wrinkle: the IRS “family glitch” fix, effective since 2023, changed how premium tax credit eligibility works for spouses and dependents. PTC eligibility is now based on the cost of family coverage, not just employee-only coverage. Families comparing a spouse’s group plan against marketplace coverage (with or without ICHRA) should test affordability under the updated rule to avoid leaving money on the table.

For employers weighing whether to keep a group plan with carve outs or switch to ICHRA entirely, our complete ICHRA adoption guide walks through the transition step by step.

Choosing Between Carve Out, Surcharge, SIHRA, and ICHRA

There’s no universal right answer. The best approach depends on your plan structure, workforce, and appetite for complexity.

If you’re fully insured in a state with marital-status restrictions: A surcharge is generally safer than a hard carve out. It preserves eligibility while still creating a financial incentive for spouses to use their own plans. Check your state’s rules before committing to either.

If you’re self-funded and spouse claims are a significant cost driver: A conditional carve out or SIHRA can meaningfully reduce exposure. But weigh the administrative complexity (especially for SIHRAs, which require 105(h) compliance, HSA compatibility testing, PCORI fee calculations, and 1095 reporting) against the savings. LinkedIn practitioners note that SIHRAs require careful design around claims substantiation, including EOBs and proof of other plan enrollment.

If you’re moving off group coverage to ICHRA: Carve outs become a non-issue. Instead, focus on setting appropriate class allowances and educating employees about how ICHRA works with individual market plans. This approach sidesteps the morale problems that carve outs sometimes create, since every employee gets a benefit they can personalize. See how ICHRA delivers personalized healthcare for a deeper look at the employee experience side.

One more consideration: Practitioners on Reddit point out that “working spouse” carve outs typically don’t apply after the spouse retires, since the spouse is no longer “working” and may not have employer coverage available. Plan documents should address this scenario explicitly.

Ready to explore whether ICHRA could replace your group plan (and its carve out headaches)? Schedule a demo with SimplyHRA to see how it works.

Frequently Asked Questions

Are employers required to offer health coverage to spouses?

No. The ACA’s employer shared responsibility provision requires applicable large employers to offer coverage to full-time employees and their dependent children. Spouses are not included in this requirement. This is why spousal carve outs are legally permissible for most employers.

Does a spousal carve out violate HIPAA nondiscrimination rules?

Not if it’s based on access to other employer-sponsored coverage and applied uniformly to all similarly situated employees. HIPAA nondiscrimination rules target eligibility decisions based on health status factors. Access to another employer’s plan is not a health factor. The rule must be consistent, meaning you can’t apply the carve out selectively.

Can an employer base a carve out on Medicare or TRICARE status?

No. Federal rules under 42 CFR 411.103 prohibit employers from offering incentives for Medicare beneficiaries to decline employer coverage when the employer plan would be primary. A similar prohibition exists for TRICARE. Always frame the carve out around access to other employer group coverage, not government program eligibility.

What happens if the spouse loses their other coverage midyear?

Loss of other coverage triggers a HIPAA special enrollment right. The spouse has 30 days to enroll in the employee’s plan. The employer’s plan must honor this enrollment window, even if it falls outside the regular open enrollment period.

Can an ICHRA reimburse premiums when the employee enrolls in a spouse’s group plan?

No. ICHRA can only reimburse premiums for individual market coverage or Medicare. It cannot reimburse premiums for enrollment on a spouse’s employer group plan. Employees must choose between using the ICHRA with individual coverage or joining the spouse’s plan without ICHRA reimbursement.

What is the difference between a spousal carve out and a spousal surcharge?

A spousal carve out blocks enrollment entirely when the spouse has access to other employer coverage. A spousal surcharge allows enrollment but charges an additional monthly fee, commonly in the $100 to $200 range. The surcharge approach is less disruptive to employee morale but delivers smaller cost savings.

How common are spousal carve outs?

According to the 2024 IFEBP survey, 7.1% of plan sponsors use a spousal carve out and 13.5% impose a spousal surcharge. The KFF 2024 survey found that 16% of firms offering spousal coverage say spouses aren’t eligible at all. Both numbers have trended upward as health plan costs increase.

Do spousal carve outs apply to self-funded and fully insured plans differently?

Yes. Self-funded ERISA plans are generally protected from state insurance regulations through federal preemption, giving employers more flexibility to design carve outs. Fully insured plans must comply with state insurance laws, and some states have marital-status nondiscrimination rules that may restrict or prohibit spousal carve outs. Always coordinate with your carrier and legal counsel.