based on what you provided, and assuming the (no) joint return test is met, you can claim her. If you went through the Turbotax dependent questions and correctly answered them, it should have not allowed you to claim her if she didn't qualify.
there is a joint return test.
she didn't file a joint return unless there was no tax liability but merely filing joint to facilitate refund of taxes withheld or estimates paid. I know 18 seems young to be "married". But .................
The age at which a person can marry varies by state. The marriage age is generally 18 years, with the exception of Nebraska (19) and Mississippi (21). In addition, all states, except Delaware, allow minors to marry in certain circumstances, such as parental consent, judicial consent, pregnancy, or a combination of these situations. Most states allow minors aged 16 and 17 to marry with parental consent alone. 30 states have set an absolute minimum age by statute, which varies between 13 and 18, while in 20 states there is no statutory minimum age if other legal conditions are met. In states with no set minimum age, the traditional common law minimum age is 14 for boys and 12 for girls – ages which have been confirmed by case law in some states. In Tennessee a 10-year-old girl was married in 2001before the state finally set a minimum age of 17 in 2018.
