Startup Employee Benefits Guide: What to Offer & When (2025)
Which benefits are legally required, which are optional, and how to build a competitive package on a startup budget.
Benefits are one of the most misunderstood areas of HR for early-stage founders. Get them wrong and you face compliance penalties, recruiting losses, and employee resentment. Get them right and they become one of your most powerful retention tools. Here is exactly what you need to know.
The line between required and optional
Before you decide what to offer, understand what you are already legally required to provide. Most founders are surprised to learn how many 'benefits' are not optional at all.
Required benefits exist at the federal level and are supplemented by state law. If you are operating in a state with additional mandated benefits and are unaware of them, you are already out of compliance.
Benefits you are required to provide by law
These apply to virtually every employer with W-2 employees, regardless of company size:
- Social Security and Medicare (FICA): Employers must withhold 6.2% of each employee's wages for Social Security and 1.45% for Medicare, then match those amounts with an equal employer contribution. This is non-negotiable and non-negotiable. Total employer cost: 7.65% of gross wages up to the Social Security wage base ($168,600 in 2024).
- Federal and state unemployment insurance: You pay Federal Unemployment Tax (FUTA) at 6% on the first $7,000 of each employee's wages, with a credit of up to 5.4% if you pay state unemployment taxes on time. State unemployment insurance (SUI) rates and wage bases vary significantly. New employers typically start at a set new-employer rate until sufficient payroll history exists.
- Workers' compensation insurance: Required in all 50 states (Texas is the only exception with a complicated opt-out structure). Workers' comp covers employees for on-the-job injuries and illnesses. Rates are set by industry classification code and experience rating. Operating without required workers' comp coverage can result in penalties, personal liability, and loss of the ability to do business in some states.
- State-mandated disability and paid leave: California, New Jersey, New York, Rhode Island, Hawaii, and Washington require employers to participate in state short-term disability or paid family and medical leave programs. If you have employees in any of these states, this is not optional.
- Compliant break and meal periods: Many states (including California, New York, and several others) mandate paid rest breaks and unpaid meal periods based on shift length. These are legally required and failure to provide them creates wage claims.
The Affordable Care Act (ACA) employer mandate
This is the compliance trigger most founders are unaware of until they cross it. Under the ACA, employers with 50 or more full-time equivalent employees (called Applicable Large Employers, or ALEs) must offer minimum essential health coverage to full-time employees and their dependents, or face penalties.
The penalty for failing to offer coverage to at least 95% of full-time employees when at least one employee receives a premium tax credit through the ACA marketplace is significant: $2,880 per full-time employee per year (2024 figure, indexed annually), minus the first 30 employees.
For a company with 55 full-time employees, that is a potential penalty of $2,880 x 25 = $72,000 per year. This is why benefits professionals track headcount so carefully as companies approach 50 FTE.
If you are under 50 FTE, offering health insurance is optional. But 'optional' does not mean 'unimportant.' Health insurance is consistently ranked as the most valued employee benefit in SHRM surveys, and failing to offer it at a competitive level is one of the most common reasons candidates decline offers from early-stage companies.
Health insurance: how to structure your offering
For companies under 50 FTE that choose to offer health insurance voluntarily, the most common structures are:
- Group health plan through a carrier or broker: The traditional model: the company selects a plan (or menu of plans) through an insurance carrier and subsidizes a portion of the premium. Employer contributions are tax-deductible and excluded from employee wages. Most startups offer to cover 70% to 100% of employee-only premiums and 50% to 70% of dependent premiums. The employee pays the remainder via pre-tax payroll deductions.
- Health Reimbursement Arrangement (HRA): An employer-funded account that reimburses employees for individual health insurance premiums and qualified medical expenses. Qualified Small Employer HRAs (QSEHRAs) are specifically designed for companies with fewer than 50 FTE, with annual contribution limits of $6,150 for self-only and $12,450 for family coverage (2024 figures). This is a useful option for very small companies that cannot access affordable group rates.
- Individual Coverage HRA (ICHRA): A newer, more flexible alternative with no contribution limits. Employees purchase their own individual insurance and get reimbursed. Can be used by employers of any size. Requires careful design to maintain ACA compliance and non-discrimination testing.
Retirement benefits: 401(k) basics
Offering a 401(k) plan is optional for most employers, but it has become nearly table-stakes for attracting and retaining knowledge workers. The basics: employees contribute pre-tax (traditional) or after-tax (Roth) dollars up to annual IRS limits ($23,000 in 2024, $30,500 for those 50 and older). Employers can offer matching contributions, which are deductible as a business expense.
Small businesses have access to a simplified plan structure called a SIMPLE 401(k) or a Solo 401(k) for companies with only the owner. Standard 401(k) plans require annual nondiscrimination testing to ensure the plan does not disproportionately benefit highly compensated employees. Safe Harbor 401(k) plans avoid this testing requirement in exchange for a mandatory minimum employer contribution.
401(k) plans are governed by ERISA and require a named plan administrator, annual Form 5500 filings with the Department of Labor, and compliance with strict rules around participant disclosures and investment options. Most small employers use a third-party administrator (TPA) to manage this.
What the market actually offers at your stage
SHRM data shows that among companies with 25 to 99 employees, approximately 71% offer medical insurance, 58% offer dental, and 52% offer vision. Among companies with fewer than 25 employees, those numbers drop to 43%, 33%, and 27% respectively.
At the startup level, benefits that candidates value most after health insurance are: 401(k) with employer match (even a modest 3% match is meaningful), flexible PTO or generous vacation, remote or hybrid work options, professional development budget, and equity.
A startup that cannot yet afford comprehensive health coverage can still compete by being transparent about the roadmap, offering a HRA to cover individual insurance costs, and excelling in non-insurance benefits like flexibility, equity, and growth opportunity.
COBRA: the post-employment obligation most founders miss
If you offer a group health plan and have 20 or more employees, you are subject to COBRA continuation coverage requirements. When an employee (or covered dependent) loses health coverage due to a qualifying event (termination, reduction in hours, divorce, etc.), they must be offered the right to continue coverage for up to 18 months at their own expense.
You are legally required to provide the COBRA election notice within 44 days of the qualifying event. Failure to provide timely notice carries penalties of up to $100 per qualified beneficiary per day, with additional excise tax liability.
Smaller employers under 20 employees may be subject to state mini-COBRA laws, which vary significantly. North Carolina has a state continuation law that applies to employers with 2 to 19 employees.