How do i file a 2015 and 2016 w-2 together

[sfox28]

I did not file my 2015 taxes because i had student loans in default. So I am trying to file my 2015 and my 2016. Ive had the same job so I have one w-2 for 2015 and one for 2016. I was told by H&R Block that i can file them at the same time. I just dont know how to do it using turbo tax.

[xmasbaby0]

You cannot file two tax years together.  Each tax year's return must be filed separately.  

To file a return for a prior tax year

Only a 2016 return can be prepared online and e-filed. 

 If you need to prepare a return for 2013, 2014 or 2015 you can purchase and download desktop software to do it, then print, sign,  and mail the return(s)

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

  (if you want to prepare on paper for free)

Remember to prepare your state return as well—if you live in a state that has a state income tax.

[jerry2000]

You were told incorrectly. You must file your 2015 w-2 on a 2015 tax return and your 2016 w-2 on a 2016 tax return.
Turbotax Online works only for current year (2016) taxes, and not for any other year.
If you want to use TurboTax for any other year you will need to purchase the Desktop Version for each year that you need to file. You can do that at this link:
http://shop.turbotax.intuit.com/personal-taxes/past-years-products.jsp