I believe I made a mistake in my 2015 taxes, entering my pre-tax and Roth 401(k) contributions as traditional and Roth IRA contributions and paid a penalty on it for over-contributing. I do not have a traditional or Roth IRA and mistook my company 401(k) plan contributions from box 12 on my W-2 as traditional and Roth IRAs in the Retirement and Investments area of my Deductions & Credits section.
What affect would this have if I were to correct my 2015 filing? I received a refund from both my federal and state taxes. And would it flag if I didn't enter anything in my 2016 taxes, even if I had mistakenly entered something for last year?
Thanks!
