I need the exact address i used on my 2015 tax return for a FAFSA filing issue and i do not know where to find the address i used.

I need to know the address I put down on my 2015

Go to this IRS website for a free federal transcript of a tax return - https://www.irs.gov/individuals/get-transcript

Or complete your application using the FAFSA website where the IRS Data Retrieval Tool is available - https://fafsa.ed.gov/