Get your taxes done using TurboTax

not filing is not an option. at some point the IRS could seize any assets you own or put a lien on them garnish your paycheck.  What your return shows for that year is meaningless. Something happened which triggered the bill. it could have been a tax form sent to the IRS mistakenly using your SSN so you would know nothing about it. I don't think you can access your IRS transcript for 2015