Updated April 2026 · Florida Plan Finder · Licensed Florida Health Insurance Producer

Pre-Tax vs Post-Tax Health Insurance Payroll Deductions for Florida Small Business

When a Florida small business deducts an employee's share of health insurance premium from the paycheck, that deduction can either come out of gross pay (pre-tax) or net pay (post-tax). The difference is meaningful: a pre-tax deduction reduces taxable wages for both federal income tax and FICA, saving the employee 7.65% FICA + their marginal federal rate, and saving the employer the matching 7.65% FICA. The mechanism that makes this possible is a Section 125 cafeteria plan. Without one, all employee premium contributions are post-tax by default.

How the Two Methods Affect a Paycheck

The employee gains ~$29.47 per check ($766 per year on biweekly). The employer also saves $11.47 per check ($298 per year per employee) on the FICA match.

FICA Savings by Income Range

Setup Steps for Section 125 Pre-Tax

1. Establish a written Section 125 plan document — most payroll providers (Gusto, ADP, Paychex) include this; standalone documents from benefit admin firms cost $150-$500
2. Distribute summary plan description to employees
3. Hold an annual open enrollment with election forms
4. Configure payroll system to deduct elections from pre-tax wages
5. Track elections — Section 125 elections are irrevocable mid-year except for qualifying life events

Who Cannot Participate Pre-Tax

Several groups are excluded from Section 125 pre-tax treatment under IRS rules:

• >2% S-corp shareholders (and their attributed family)
• Sole proprietors
• Partners in a partnership / multi-member LLC members
• Independent contractors (1099)
• Some board members and other non-employee service providers

These individuals can still receive coverage, but the premium share they pay is post-tax (with potentially a recovery deduction on the personal return for owners).

Mid-Year Election Change Rules

Section 125 elections are locked for the plan year. Mid-year changes require a qualifying status change event:

• Marriage, divorce, legal separation
• Birth, adoption, or death of a dependent
• Change in employment status (FT to PT or vice versa)
• Significant cost or coverage changes by the employer
• Loss of other coverage (e.g., spouse's plan terminates)