You most likely will not have to report the inheritance on your federal tax return, since the IRS does not impose an inheritance tax.
https://ttlc.intuit.com/replies/3300476
However, depending on the kind of inheritance, you may have to pay taxes on any earnings from the inheritance. Please see this great answer below which may provide more detailed information about your situation.
https://ttlc.intuit.com/replies/3369128
