I am 34, and was unemployed all year. Can a cousin I lived with claim me as a dependent? And should I still file for $0 income?

If your cousin supported you and you lived with them ALL YEAR, your cousin may be able to claim you and get the $500 credit for other dependents.  If you are claimed as a dependent you will not receive the stimulus check.

 

 

IRS interview to help determine who can be claimed:

https://www.irs.gov/help/ita/who-can-i-claim-as-a-dependent

 

 

CREDIT FOR OTHER DEPENDENTS

https://ttlc.intuit.com/questions/4499708-what-is-the-500-credit-for-other-dependents-family-tax-credit

It is best if you file for yourself with ZERO income, and the stimulus package.

@xmasbaby0 

WhileI was unemployed all year of 2019, I only lived with him for 8 month of 2019.

He has already filed and claimed me.

What should I do?

Try filing either a "zero" return or go on the IRS non-filer site.  The IRS will have to sort it out.  Good luck.

IRS PORTAL FOR NON-FILERS

https://www.irs.gov/coronavirus/non-filers-enter-payment-info-here

https://ttlc.intuit.com/community/tax-topics/help/how-will-the-stimulus-package-impact-me/00/1393859

https://turbotax.intuit.com/stimulus-check/

 

@xmasbaby0 

You've given me the best answers and research points this far! 

Thank you.