Are Employee Benefits Required by Law? (w/Examples) + FAQs

Yes, some employee benefits are required by U.S. federal law, and many more are required by state law. Every employer must provide Social Security, Medicare, unemployment insurance, and workers’ compensation in almost every state. Larger employers must also provide unpaid family leave under the Family and Medical Leave Act and affordable health coverage under the Affordable Care Act employer mandate.

Other benefits, such as paid vacation, dental insurance, and 401(k) retirement plans, are voluntary under federal law. However, a growing number of states now require paid sick leave, paid family leave, and even retirement plan access. The line between mandatory and optional benefits shifts by state, employer size, and worker classification, and the penalty for guessing wrong can reach six figures per violation under the ACA shared responsibility rules.

According to the U.S. Bureau of Labor Statistics Employer Costs for Employee Compensation report, benefits make up about 29.6% of total employer compensation costs, meaning nearly one-third of every payroll dollar funds benefits that are either legally required or strongly expected.

Here is what you will learn in this guide:

• ⚖️ Which benefits federal law forces every employer to provide, no exceptions
• 🏥 How the ACA, FMLA, and COBRA rules change based on your employee headcount
• 🌎 Which states add paid sick leave, paid family leave, and retirement mandates on top of federal rules
• 💰 The real dollar penalties for skipping a required benefit in 2026
• 🧾 How to tell a legally required benefit apart from a popular voluntary perk

Federally Required Employee Benefits

Federal law requires five core benefits from almost every U.S. employer: Social Security, Medicare, federal unemployment tax contributions, workers’ compensation (through state systems), and compliance with the Fair Labor Standards Act wage rules. Larger employers must also offer health coverage, unpaid family leave, and continuation coverage after job loss. These rules come from a mix of tax law, labor law, and the Employee Retirement Income Security Act, known as ERISA.

The consequence of ignoring any federal benefit rule is almost never just a warning. The IRS, the Department of Labor, and the Equal Employment Opportunity Commission all have power to audit, fine, and sue employers. A single missed Form 5500 filing under ERISA can cost up to $2,739 per day under the 2025 DOL civil penalty adjustments.

Every federal benefit rule below follows the same pattern. There is a statute, an agency that enforces it, a dollar penalty for violations, and a common myth that gets employers in trouble. The rest of this section walks through each one.

Social Security and Medicare (FICA)

The Federal Insurance Contributions Act requires every employer to withhold 6.2% of wages for Social Security and 1.45% for Medicare, then match those amounts out of company funds. The 2026 Social Security wage base is $176,100, and wages above that are not taxed for Social Security but still taxed for Medicare.

The consequence of failing to deposit FICA taxes is severe. The IRS can assess the Trust Fund Recovery Penalty, which makes the business owner personally liable for 100% of the unpaid tax. This penalty pierces the corporate veil, so an LLC or corporation offers no protection.

Example: Maria owns a small bakery in Ohio with six employees. She falls behind on payroll deposits for two quarters and owes $18,400 in FICA. The IRS assesses the Trust Fund Recovery Penalty against her personally, and her home equity is now at risk.

A common misconception is that 1099 contractors let employers skip FICA. That is only true if the worker is actually an independent contractor under the IRS common law test. Misclassification leads to back taxes, interest, and penalties of up to 40% of the unpaid amounts.

Federal and State Unemployment Insurance

The Federal Unemployment Tax Act requires employers to pay 6% on the first $7,000 of each employee’s wages, though most employers get a 5.4% credit for paying state unemployment tax on time. The effective federal rate drops to 0.6%, or $42 per employee per year.

The consequence of late state unemployment payments is the loss of that 5.4% credit. A 20-employee shop that loses the credit pays an extra $7,560 in federal tax, on top of the state bill.

Example: A Nevada construction firm, run by James, misses two quarterly state unemployment deposits. The state reports the delinquency to the IRS, and James loses the FUTA credit for the year, adding nearly $8,000 in federal tax on top of state penalties.

A common myth is that seasonal or part-time workers do not count. Under most state rules, any wages paid to any W-2 worker count toward unemployment tax, though household and farm workers follow separate thresholds under the IRS agricultural employer guide.

Workers’ Compensation Insurance

Workers’ compensation is required in 49 states, with Texas being the only state where private employers can opt out, under the Texas Department of Insurance nonsubscriber rules. Coverage pays medical bills and lost wages when a worker is hurt on the job, and it protects the employer from most personal injury lawsuits by employees.

The consequence of going uninsured is harsh. In California, an uninsured employer faces fines of up to $100,000 under Labor Code 3722, plus personal liability for the injured worker’s full damages. In New York, the penalty is up to $2,000 per 10-day period of noncompliance under the Workers’ Compensation Board penalty schedule.

Example: A Florida landscaping company, owned by Carlos, hires five workers without buying a policy. One worker falls from a ladder and breaks his back. Carlos faces a state fine, a stop-work order, and a civil suit that could wipe out the business.

A common misconception is that family members or owners are exempt. Some states allow sole proprietors and LLC members to opt out of coverage for themselves, but employees must always be covered, and the opt-out paperwork must be filed correctly.

Family and Medical Leave (FMLA)

The Family and Medical Leave Act applies to employers with 50 or more employees within a 75-mile radius. Eligible workers get up to 12 weeks of unpaid, job-protected leave for their own serious health condition, a family member’s serious health condition, the birth or adoption of a child, or certain military family events.

The consequence of an FMLA violation is a lawsuit under the FMLA enforcement rules. Damages include lost wages, benefits, liquidated damages equal to that amount, attorney fees, and reinstatement.

Example: A 60-employee marketing agency, led by Priya, fires a project manager two weeks after she returns from maternity leave. She sues under FMLA and wins $84,000 in back pay plus the same amount in liquidated damages, plus her job back.

A common myth is that FMLA leave must be paid. It is unpaid at the federal level, though workers can use accrued PTO during the leave, and many states now layer paid family leave on top.

Affordable Care Act Health Coverage

The ACA employer shared responsibility provision applies to Applicable Large Employers, or ALEs, with 50 or more full-time equivalent employees. These employers must offer minimum essential coverage that is affordable and provides minimum value to at least 95% of full-time employees and their dependents.

The consequence of noncompliance in 2026 is steep. The “A penalty” for not offering coverage is roughly $2,970 per full-time employee per year, and the “B penalty” for offering unaffordable coverage is about $4,460 per employee who buys subsidized marketplace coverage, per the IRS 4980H indexed amounts.

Example: A 120-employee logistics firm run by David fails to offer health coverage. The IRS assesses the A penalty on 90 of those employees after subtracting the 30-employee exclusion, for a total penalty of about $267,300 for the year.

A common misconception is that part-time workers do not count. For the 50-employee threshold, part-time hours are combined and divided by 120 to create full-time equivalents, under the ACA FTE calculation rules.

COBRA Continuation Coverage

The Consolidated Omnibus Budget Reconciliation Act applies to employers with 20 or more employees that offer group health coverage. Workers who lose coverage due to termination, reduced hours, divorce, or other qualifying events can continue the plan for 18 or 36 months at up to 102% of the full premium.

The consequence of a COBRA notice failure is $110 per day per affected beneficiary under the DOL COBRA penalty rules, plus IRS excise taxes of $100 per day per violation.

Example: A 40-employee accounting firm owned by Susan forgets to send a COBRA election notice to a terminated worker for 90 days. She faces $9,900 in DOL penalties plus a $9,000 IRS excise tax, plus potential medical bills if the worker had an uncovered claim.

A common myth is that workers fired for misconduct lose COBRA. Only gross misconduct disqualifies a worker, and courts interpret that term narrowly, as seen in cases like Collins v. Aggreko.

State-Mandated Employee Benefits

State laws add another layer of required benefits on top of federal rules. Thirteen states plus D.C. now require paid sick leave, per the A Better Balance paid sick leave tracker. Thirteen states plus D.C. require paid family and medical leave. A growing list of states also require employers to offer access to a state-run retirement plan if they do not sponsor their own.

The consequence of missing a state mandate is a second set of fines layered on top of any federal issue. California, New York, and Massachusetts have the most aggressive enforcement, with penalties that can reach $25,000 per violation under statutes like California Labor Code 558.

State rules change every legislative session, so employers must audit their policies each year. A benefit that was optional in 2024 may be mandatory in 2026.

Paid Sick Leave

California’s Healthy Workplaces, Healthy Families Act now requires five days or 40 hours of paid sick leave per year, after the 2024 expansion. New York requires up to 56 hours per year for large employers under the NY Paid Sick Leave law.

The consequence of denying paid sick leave varies. In California, the penalty is $250 per aggrieved employee, up to $4,000, plus back pay. In New York, civil penalties can reach 100% of unpaid benefits plus liquidated damages.

Example: A Los Angeles restaurant, owned by Ana, denies sick leave to three servers over a flu outbreak. The Labor Commissioner orders $12,000 in combined back pay and penalties, plus a posted notice of violation.

Paid Family and Medical Leave

States like California, New York, New Jersey, Washington, Massachusetts, and Colorado run paid family leave programs funded by payroll contributions. The Washington Paid Family and Medical Leave program pays up to 90% of wages for up to 12 weeks, capped at a weekly maximum that rises each year.

The consequence of skipping premium payments in Washington is back premiums, plus interest, plus penalties of up to $1,000 per willful violation under the RCW 50A.40 enforcement rules.

Example: A Seattle startup with 15 employees, led by Kevin, forgets to withhold PFML premiums for a year. The state bills the company for both the employer and employee share, since the employer cannot retroactively collect from workers.

State-Run Retirement Programs

Programs like CalSavers, Illinois Secure Choice, and OregonSaves require employers without a qualified retirement plan to auto-enroll workers in a state-run IRA. California now covers employers with just one employee.

The consequence of not registering is a penalty of $250 per eligible employee after 90 days and $500 per employee after 180 days, under CalSavers penalty rules.

Example: A 10-employee design firm in Sacramento, run by Brianna, ignores CalSavers for a full year. The state assesses $5,000 in penalties, and Brianna still must register.

Benefits That Are NOT Required by Federal Law

Many popular benefits are completely voluntary under federal law. The ERISA voluntary plan rules govern how voluntary plans must be run once they are offered, but there is no federal mandate to offer them in the first place.

The consequence of offering these benefits poorly can still be a lawsuit. Once an employer promises a benefit, ERISA’s fiduciary rules often apply. The Supreme Court decision in Hughes v. Northwestern made clear that fiduciaries must monitor every investment option in a 401(k) plan, even when many choices are available.

Below are the most common voluntary benefits, the rules that apply once they are offered, and the hidden compliance traps.

Paid Vacation and PTO

No federal law requires paid vacation. However, many states treat accrued vacation as earned wages that must be paid out at termination, under rules like California Labor Code 227.3.

Example: A Texas employer, run by Greg, uses a “use it or lose it” policy. That is legal in Texas but would be illegal in California, where accrued vacation cannot be forfeited.

401(k) and Retirement Plans

No federal law requires a 401(k) plan, but once offered, it is governed by ERISA fiduciary standards. Employers must file Form 5500, follow nondiscrimination tests, and act solely in the interest of participants.

Example: A 200-employee manufacturer keeps a high-fee 401(k) for a decade without shopping it. Workers sue under ERISA and win a $3.2 million settlement for breach of fiduciary duty.

Health, Dental, and Vision Insurance

Only ACA-covered large employers must offer health coverage. Dental and vision are voluntary at every size under federal law, though once offered, they often become ERISA welfare plans subject to plan document and SPD rules.

Life and Disability Insurance

No federal law requires life or disability insurance, though five states plus Puerto Rico require short-term disability, including New York State Disability and New Jersey Temporary Disability.

Three Real-World Scenarios

Each of these scenarios shows how the rules apply to a common small business situation.

Scenario 1: The Growing Startup Crossing 50 Employees

Scenario 2: The Restaurant Owner in California

Scenario 3: The Remote-First Tech Company

Mistakes to Avoid

These are the most common and costly errors employers make when managing required benefits.

• Misclassifying employees as 1099 contractors to skip FICA and workers’ comp, which triggers back taxes, interest, and up to 40% penalties under IRS Section 3509.
• Forgetting to register for state paid leave programs after hiring a single remote worker in a covered state, which creates back-premium liability.
• Using a “use it or lose it” vacation policy in states like California, Montana, and Nebraska where accrued PTO is treated as wages under state wage laws.
• Missing the COBRA election notice deadline of 14 days after the plan administrator is notified of a qualifying event.
• Offering unaffordable health coverage by exceeding the 2026 ACA affordability threshold of 9.02% of household income.
• Skipping Form 5500 filings for ERISA welfare plans with 100 or more participants, which carries penalties up to $2,739 per day.
• Failing to post required notices such as the FMLA poster and the EEOC Know Your Rights poster.
• Denying pregnancy accommodations under the Pregnant Workers Fairness Act, which took full effect in 2023 and is now heavily enforced.
• Treating interns as unpaid workers without meeting the DOL primary beneficiary test.

Do’s and Don’ts for Required Benefits

Do’s

• Do audit your employee headcount every quarter to see if you have crossed the 20-employee COBRA line, the 50-employee FMLA line, or the 50 FTE ACA line.
• Do keep a written benefits handbook that matches your plan documents, because inconsistencies are the number one source of ERISA lawsuits.
• Do register for every state program where you have even one employee, since remote work has erased the single-state compliance model.
• Do deposit FICA and FUTA taxes on time, because the Trust Fund Recovery Penalty is personal and not dischargeable in bankruptcy.
• Do buy workers’ compensation before your first day of operation, not your first injury, because coverage does not apply retroactively.

Don’ts

• Don’t assume independent contractors solve compliance, because misclassification is the fastest way to trigger a multi-agency audit.
• Don’t let an employee sign a waiver of workers’ comp rights, because those waivers are void in every state.
• Don’t promise benefits in an offer letter you do not actually provide, because courts often enforce those promises under contract law.
• Don’t rely on a broker to file your ERISA Form 5500, because the legal duty stays with the plan sponsor.
• Don’t ignore EEOC charges, because a no-response default judgment is harder to undo than the original complaint.

Pros and Cons of Offering More Than the Legal Minimum

Pros

• Better hiring results, since SHRM benefits research shows benefits rank above pay for many candidates.
• Lower turnover, which saves roughly 50% to 200% of annual salary per replaced worker.
• Higher productivity from healthier, less stressed workers.
• Stronger culture that reduces the risk of union organizing.
• Tax advantages, since most employer-paid premiums are deductible and not taxable to workers.

Cons

• Higher direct cost, often 25% to 35% on top of wages.
• More ERISA compliance once voluntary plans are added.
• Administrative complexity, especially with multi-state remote teams.
• Plan fiduciary liability under the ERISA prudent expert standard.
• Difficulty rolling benefits back once promised, which can trigger constructive discharge claims.

Benefits Required vs. Not Required at a Glance

Key Agencies and Entities

The Department of Labor enforces FMLA, FLSA, ERISA, and OSHA. The Internal Revenue Service enforces FICA, FUTA, and the ACA employer mandate. The Employee Benefits Security Administration is the DOL subagency that polices ERISA welfare and retirement plans.

The Equal Employment Opportunity Commission enforces the Pregnant Workers Fairness Act, the ADA, and Title VII benefit discrimination claims. The Centers for Medicare and Medicaid Services oversees parts of the ACA market rules.

At the state level, each state’s Department of Labor, Workers’ Compensation Board, and Insurance Department share enforcement of state mandates. California’s Labor Commissioner and New York’s Department of Labor are the most active.

Key Court Rulings

The Supreme Court’s Burwell v. Hobby Lobby decision allowed closely held companies to claim religious exemptions from the ACA contraceptive mandate. This ruling narrowed the scope of required preventive benefits for some employers.

In Hughes v. Northwestern University, the Court held that 401(k) fiduciaries must monitor every investment option, not just the plan menu as a whole. This opened the door to more fee-based ERISA suits.

The Court’s King v. Burwell ruling upheld premium subsidies in federal exchange states, preserving the B penalty trigger for ACA employers.

FAQs

Are employers required to provide health insurance?

Yes, but only employers with 50 or more full-time equivalent employees must offer affordable minimum-value health coverage under the ACA employer mandate, or pay a penalty.

Is paid vacation required by federal law?

No, no federal law requires paid vacation, but many states treat accrued vacation as earned wages that must be paid out at termination under state wage payment rules.

Is workers’ compensation insurance required in every state?

No, Texas is the only state where private employers can legally opt out, though nonsubscribers lose common-law defenses under the Texas Department of Insurance rules.

Is a 401(k) plan required by law?

No, federal law does not require a 401(k), but several states require employers without one to enroll workers in a state-run IRA like CalSavers or OregonSaves.

Are part-time workers entitled to the same benefits?

No, federal law generally allows different benefits for part-time workers, though the ACA counts part-time hours toward the 50 FTE threshold.

Is paid sick leave required by federal law?

No, there is no general federal paid sick leave mandate, but 13 states and D.C. require it under laws tracked by the A Better Balance map.

Is FMLA leave paid?

No, federal FMLA leave is unpaid, though employees may use accrued PTO, and states like California, New York, and Washington now offer state-paid family leave benefits.

Must employers offer COBRA to all workers?

Yes, employers with 20 or more employees that offer group health coverage must offer COBRA continuation after qualifying events like termination or reduced hours.

Are independent contractors entitled to employee benefits?

No, true independent contractors are not entitled to benefits, but misclassification under the IRS common law test can trigger back taxes and benefit claims.

Can employers require employees to pay for benefits?

Yes, employers can require employee contributions toward health premiums, but the ACA affordability rule caps the employee share at 9.02% of household income in 2026 for large employers.

Is life insurance required by law?

No, no federal or state law requires employer-provided life insurance, though it remains a common voluntary benefit under ERISA welfare plan rules.

Are remote workers covered by the laws of their state?

Yes, remote workers are generally covered by the labor and benefit laws of the state where they physically work, which can trigger registration in multiple state programs.