My parents can no longer claim me on there taxes.How can i change my dependent status?

[Texas Roger]

Have you already filed a return and indicated that someone else could claim you as a dependent?

Or have you not yet filed a return?

[tonyd1993]

Yes I already filed and indicated my parents could claim me as a dependent.

[Texas Roger]

To change your dependency status on a tax return that has already been filed and accepted, you must prepare, print, sign and mail an amended return form 1040X. After starting the amended return, uncheck the box in My Info that says you can be claimed by someone else. 

Here are instructions for amending a return: https://ttlc.intuit.com/questions/1894381-how-to-amend-change-or-correct-a-return-you-already-filed