@vanfeldenf wrote:
What if we have a child together, under the age of 5?
First, to be a dependent as a non-married, non-relative, you must live in his home for all 365 days of the year, and he pays more than half your support, and your taxable income is less than $4300.
However, if your relationship is illegal under state law, you can't be a dependent. This is a more rare objection these days, but if your state has a law that makes it illegal for a married person to share a home with another person who is not their spouse, then you can't be claimed as a dependent.
He may claim his biological child as dependent even if he can't claim you, but having a child together does not change the rules on whether or not he can claim you.
