<p>For the FAFSA, you only need the information of the custodial parent (the one with whom your son lives more than 50% of the time). For the FAFSA (and just for the FAFSA), the non-custodial parent’s (that is, the incarcerated parent’s) assets and financial information are not necessary. For the purposes of the FAFSA, your husband is your son’s father and his biological father does not have to contribute and is not entitled to any information about this process.</p>