Go to IRS, not a secondary source. [
www.irs.gov]
"The insurance plan must be established, or considered to be established as discussed in the following bullets, under your business.
•For self-employed individuals filing a Schedule C, C-EZ, or F, a policy can be either in the name of the business or in the name of the individual.
•For partners, a policy can be either in the name of the partnership or in the name of the partner. You can either pay the premiums yourself or your partnership can pay them and report the premium amounts on Schedule K-1 (Form 1065) as guaranteed payments to be included in your gross income. However, if the policy is in your name and you pay the premiums yourself, the partnership must reimburse you and report the premium amounts on Schedule K-1 (Form 1065) as guaranteed payments to be included in your gross income. Otherwise, the insurance plan will not be considered to be established under your business.
•For more-than-2% shareholders, a policy can be either in the name of the S corporation or in the name of the shareholder. You can either pay the premiums yourself or your S corporation can pay them and report the premium amounts on Form W-2 as wages to be included in your gross income. However, if the policy is in your name and you pay the premiums yourself, the S corporation must reimburse you and report the premium amounts on Form W-2 as wages to be included in your gross income. Otherwise, the insurance plan will not be considered to be established under your business. "
My reading of this is if the POLICY IS IN YOUR NAME or the name of your business and is paid for by your business, the deduction applies. If you are covered under your spouse's policy then the policy is not in YOUR name but rather your spouse's.