Introduction to Section 105 Plans
A Section 105 plan allows employers to reimburse employees for medical expenses on a tax-free basis. These plans are governed by Section 105 of the Internal Revenue Code and create major tax-saving opportunities for small business owners. Both federal and state tax liabilities can be reduced. The IRS permits employers to deduct these reimbursements as a business expense, and employees do not pay income tax on the benefit. This creates a double advantage: a deduction for the employer and no tax for the employee. Proper setup and compliance are essential.
Small business owners often miss this opportunity. They assume they cannot benefit unless they offer full group health insurance. However, Section 105 plans are flexible and affordable. They work especially well for Schedule C sole proprietors. This article explores how Section 105 HRA plans can reduce federal, state, and self-employment taxes. It outlines the structure, requirements, and tax impact for small businesses. It also provides guidance for sole proprietors using this strategy. Thousands in savings are possible with proper implementation.
How Section 105 Plans Work
A Section 105 plan is an employer-sponsored reimbursement arrangement. It allows tax-free payments for qualifying medical expenses. The employer pays the expense and deducts the cost, while the employee receives the reimbursement tax-free. Section 105 plans must be in writing and must describe eligibility, covered expenses, and reimbursement procedures. Claims must be documented with receipts and submitted properly. No verbal or informal agreements are permitted.
Only employees can participate directly in a Section 105 plan, including W-2 workers, not contractors or sole proprietors. However, there is a legal workaround for sole proprietors. They can hire their spouse as a legitimate employee. The spouse becomes the covered employee under the plan, and the business reimburses the spouse for family medical expenses, including the owner’s medical costs. This allows full reimbursement with a business deduction.
The arrangement must be structured carefully. The spouse must perform real work and receive reasonable wages. The plan document must be maintained and followed. Documentation must support each reimbursement.
Federal and State Income Tax Savings
Section 105 reimbursements are excluded from the employee’s gross income, meaning no federal income tax is owed on the benefit. The employer deducts the reimbursements as a business expense, reducing taxable profit for the business owner. Federal income tax savings can be significant. For example, a $15,000 reimbursement at a 24% tax rate saves $3,600 in federal taxes.
Most states follow federal tax treatment, meaning the reimbursement is also excluded from state income tax. The deduction also lowers the amount of taxable state income, resulting in thousands saved across federal and state levels. To receive these tax benefits, the plan must be compliant. A written document must exist, and proper procedures must be followed. Sloppy administration risks losing the deduction, as the IRS can reclassify reimbursements as taxable income.
By reducing federal and state taxable income, the business keeps more profit. This increases cash flow and strengthens financial health. Section 105 plans provide a rare win-win structure. It benefits both the business and the employee.
Social Security and Medicare Tax Savings
In addition to income tax savings, Section 105 plans reduce self-employment taxes, including Social Security and Medicare taxes under Schedule SE. For sole proprietors, this savings is especially important. These taxes are often overlooked when planning deductions. Normally, Schedule C net profit is subject to self-employment tax, which has a rate of 15.3% and applies to the entire net income.
But Section 105 reimbursements reduce that net profit, directly lowering the self-employment tax liability. For example, assume $10,000 in reimbursed medical expenses. Deducting this amount reduces taxable net profit by $10,000 and saves $1,530 in self-employment taxes alone. Add income tax savings, and total benefits exceed $3,000.
Most tax deductions only reduce income taxes, but Section 105 plans reduce both income and payroll tax burdens. That’s why this strategy is so valuable for sole proprietors. It directly targets the largest combined tax burden. The spouse-employee workaround is what unlocks this benefit.
The business deducts medical expenses paid on behalf of the spouse. Because the spouse’s family includes the owner, all costs qualify. The IRS accepts this strategy when properly executed. To claim these tax benefits, the plan must follow IRS rules (even with a limited purpose HRA).
A written Section 105 plan document is mandatory. It must include eligibility, reimbursement procedures, and benefit limits. It should be signed and dated by the employer. The spouse must be a real employee performing actual services, which can include bookkeeping, customer support, or administrative tasks.
| Benefit Type | Traditional Health Insurance | Section 105 Plan | Out-of-Pocket Payment |
|---|---|---|---|
| Employer Tax Deduction | Yes | Yes | No |
| Employee Tax-Free Benefit | Yes | Yes | No |
| Payroll Tax Savings | Yes | Yes | No |
| Flexibility in Coverage | Limited | High | N/A |
| Control Over Costs | Low | High | N/A |
Requirements for Compliance
The work should be consistent and reasonably compensated. Pay must be documented with payroll records. Each reimbursement must be supported with documentation, including receipts, provider information, and dates of service. A reimbursement form should be used for each claim.
Claims without documentation should be denied. The business must keep all plan documents and claim records, retaining them for at least six years. In the event of an audit, these files are essential. They prove the validity of deductions and protect against penalties.
The plan must operate consistently throughout the year. Ad hoc or one-time reimbursements raise red flags. All employees must follow the same rules, even if only one employee is covered. Many small business owners use traditional itemized deductions for medical expenses, but these offer limited value.
They must exceed 7.5% of adjusted gross income to apply, and few taxpayers qualify for meaningful savings this way. With a Section 105 plan, every eligible dollar is deductible. There is no income threshold to meet. The deduction happens on the business return, not Schedule A.
Why Section 105 Plans Outperform Other Options
This makes it much more powerful and accessible. HSAs and FSAs are helpful but have contribution limits. Section 105 plans do not have fixed contribution caps. Employers can reimburse larger amounts with no penalty.
This makes it ideal for families with high medical costs. Unlike health insurance premiums alone, Section 105 covers broader expenses, including dental, vision, prescriptions, and even some travel. This flexibility adds value to the benefit and delivers more comprehensive coverage. Section 105 plans are also easy to administer.
They require no monthly premiums or third-party carriers. The employer maintains control over the plan. It’s efficient and affordable for small businesses. Section 105 plans offer one of the most effective ways for small business owners to reduce taxes.
They convert personal medical expenses into business deductions, reducing both income and self-employment taxes. The result is thousands in annual savings. For sole proprietors, this strategy is especially valuable. By hiring a spouse as an employee, all family medical costs can be reimbursed.
These costs are fully deductible by the business and tax-free for the employee. Federal, state, Social Security, and Medicare taxes are reduced. The plan creates savings across every major tax category. No other benefit structure offers this level of impact.
Final Thoughts
It’s a high-leverage strategy for small firms. To maintain compliance, businesses must follow IRS rules, including a written plan, documented claims, and proper employment practices. When executed properly, the plan is bulletproof. The financial reward is substantial.
Every small business should evaluate the benefits of a Section 105 plan. The tax code offers this tool for a reason. It supports business health and rewards smart planning. Start your plan today—and keep more of your money.
