Hiring your spouse can unlock real tax benefits if structured properly. In a sole proprietorship, hiring your spouse and offering a Health Reimbursement Arrangement (HRA) allows the business to deduct your family's medical expenses as a business cost. You pay payroll taxes on the wages, but the HRA reimbursements are fully deductible by the business and tax-free to the employee-spouse. The spouse's wages also allow them to contribute to a 401(k) or IRA, increasing tax-advantaged savings. The job must be legitimate — real duties, hours, and market-rate pay. Consult a CPA to set up the arrangement correctly, particularly the HRA paperwork.