I entered 2017 information not 2018 on my HSA

[cmitchell]

I need to go back and complete the correct information.

[BMcCalpin]

Yes, you are correct that you need to correct your 2018 return. The reason is that the information on form 8889 on your 2018 tax return does not match the copies of the documents (like the 1099-SA) that the IRS has received.

If you have already filed your 2018 return, then you will need to "amend" your return.

Please see this TurboTax FAQ for how to amend your return with TurboTax - https://ttlc.intuit.com/replies/3288565