I have w2s from 2011 till 2018 can i put them all on the one im doing now

[VolvoGirl]

NO!   You have to report and file each year separately. Sorry. Turbo Tax only sells the last 3 years and only the Desktop program.  So you need a full Windows or Mac computer.  You can buy the last 3years download here   

  https://turbotax.intuit.com/personal-taxes/past-years-products/

Or get the blank forms from the IRS and do each year by hand.  Or go to a local tax place or accountant.

[xmasbaby0]

And so you know—it is too late to get tax refunds for 2011 to 2014. You can only get a tax refund for 2015 if you requested an extension for it in 2016–otherwise it is also too late to get a refund for 2015. But if you owe tax the IRS wants you to pay. Since you are so far behind in filing your returns, professional tax help would be a good idea.