<prompt> Human: Hey,I havent filed taxes in maybe 6 years and need to clean it up. Its been a source of anxiety for years and have been earning a good salary the last 2 years, with taxes being witheld. I just logged into IRS and downloaded my income verification for the last 6 years. I also have all my W2s for the last 2 years.How do I go about and find out which years I did not file for? Also, since I am probably owed a refund, will the back taxes be deducted from that amount?What is the best approach to this? All and any help is appreciated.  <response>: I didnt file for a long time due to some medical issues, and I just went to an accountant. It was easier. 