I believe I may have some unfiled tax return in the US 15yrs ago. Although I filed for the 1st yr of my employment before and paid my taxes my last remaining months back then I believe I left without filing my taxes due to a family emergency. Tried going to irs.gov and used my old SS number but I couldn't see any option that would allow me to see unpaid taxes on my part. Also considering a tax advocate for help. Pls. advice on how to go about this more efficiently. Thanks in advance.
Btw, I was on H1-B visa before