I live in New York and if I prepare my tax info using software I have to e-file my taxes help center says If your tax return is being rejected because the listed dependent's Social Security Number is

[KurtL1]

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[KathrynG3]

If the tax filing was rejected because of a social security number that has already been used, this article helps you know what to do.

You will need to print and mail your return while this is getting sorted out. Here are the steps to print and file your return.

For your future reference, these are the rules for whether a child qualifies as your dependent.