Correct. You don't need to bother.
It only makes a difference on a state tax return.
And even if one lives in a state with an income tax, if the $$ amount is small, it may not be worth the effort to calculate the US Govt $$ amount.
Example: if it's only $20, and in a 5% state...you save yourself a whole $1 in state taxes.
____________*Answers are correct to the best of my knowledge when posted, but should not be considered to be legal or official tax advice.*
