@HI96821 wrote:My mom was a homemaker and did not contribute to the investment accounts. Is she eligible to take 100% step up in basis?
Yes, per Section 1014 of the tax code, the basis of the property held by your father (now in your mother's hands) is stepped up to the fair market value on the date of his death.
Note, however, that if the investment accounts were held jointly by your mother and father, then one-half would receive a stepped-up basis.
