No. Anyone owning more than 2% of a passthrough entity (S Corp, partnership, or LLC taxed as either) cannot receive tax-free CHOICE reimbursements under IRC Section 1372. These individuals are treated similarly to self-employed persons for benefits purposes.
It's the employer's and the individual's responsibility to determine ownership status and ensure compliance with this rule. Consult your tax advisor if you're unsure about your specific situation.
