When you get married to a migrant will it affect you such as in child support or in taxes?

You really didn't provide enough information for me to give you any sort of detailed answer. To whom is the child support owed? Who owes the child support? As far as taxes go, if you and the "migrant" file a joint return and he or she never filed tax returns, you could have some serious tax issues to contend with. I suggest you seek help from a tax attorney or a certified public accountant. You simply didn't give enough information for me to answer this.

For taxes, it counts as married. Depending on your child support decree, it might affect child support.