Do you have to pay social security from income on non-qualified stock options exercised after you retire but before you start collecting social security benefits?

Yes, if you exercise non-qualified stock options after retiring but before you start collecting Social Security benefits, the income from those options is subject to Social Security taxes. This income is considered wages and will be taxed accordingly, which could affect your overall tax situation. However, it won't impact your Social Security benefits unless you exceed certain income limits.