Yes, unless you have a situation that waives the tax penalty for not having qualified health insurance. Having to wait 90 days until your employer will let you have health insurance is not one of the situations that waives the tax penalty for not having qualified health insurance. Please see the FAQ "Can I avoid paying the health insurance penalty?" below.
TurboTax
walks you through a series of questions to determine whether or not you are
subject to the healthcare penalty. See below for
instructions on navigating to the "Health Insurance" section of
TurboTax.
https://ttlc.intuit.com/replies/4234967
https://ttlc.intuit.com/replies/4843152
