I filed my taxes for 2019 as single with my W2 and 1098 I paid all of my rent, tuition, other expenses, my parent hasn't filed but is upset I filed as single, am I wrong?

What your parents are upset about is that you filed saying you cannot be claimed as a dependent on someone else's tax return--not that you said you are Single.  You would say Single whether you are a dependent or not.

Were you a full-time student in 2019?  Were your folks counting on claiming education credits?  We do not have all the facts--so we do not know if they could claim you.   

Do you fit into the category of qualifying child or qualifying relative for them?

WHO CAN I CLAIM AS A DEPENDENT?

You can claim a child, relative, friend, fiance (etc.) as a dependent on your 2019 taxes as long as they meet the following requirements:

Qualifying child

• They are related to you.

• They cannot be claimed as a dependent by someone else.

• They are a U.S. citizen, resident alien, national, or a Canadian or   Mexican resident.

• They are not filing a joint return with their spouse.

• They are under the age of 19 (or 24 for full-time students).

• No age limit for permanently and totally disabled children

  •      They live with you for more than half the year (exceptions apply).

Qualifying relative

• They don't have to be related to you (despite the name).

• They cannot be claimed as a dependent by someone else.

• They are a U.S. citizen, resident alien, national, or a Canadian or Mexican resident.

• They are not filing a joint return with their spouse.

• They lived with you the entire year.

• They made less than $4200  (not counting Social Security)

• You provided more than half of their financial support. More info

When you add someone as a dependent, we'll ask a series of questions to make sure you can claim them.

Related Information:

• Does a dependent have to live with me?

• What does "financially support another person" mean?

• Can I claim a newborn baby?