I have been adding my little brother as a dependent and filed as Head of Household for a couple years now. However, this year is a nightmare, because while i filed my taxes couple weeks ago, my parents just did theres last week and they added him as a dependent too.

My taxes have been approved and refund has been received. My parents are telling me to take him off now because they owe a couple thousands. They state that they cannot continue to file their taxes because they NEED to add him as a dependent. My parents are telling me to fill out a 1040X to adjust my taxes and constantly bugging me.

Are they lying to me? If my taxes are already done, there's nothing i can do anymore right?

Any help is appreciated. Thank you in advance!