TAXES

I've done my taxes, but I'm not sure where to send them. I'm originally from Indiana, but I'm not sure I still need to file state taxes since I live in the UK anymore. I'm really unsure of all this and I really don't want to mess anything up. I'm kind of freaking out. Thanks for all your help.

Where to send your Federal return (1040) is found here:

https://www.irs.gov/uac/where-to-file-addresses-for-taxpayers-and-tax-professionals-filing-form-1040
(usually Austin, TX if not enclosing a payment)

For Indiana, the following discusses Indiana domicile and residence. Were you resident at any time in Indiana during 2016? Is your move abroad permanent or temporary?

http://www.in.gov/dor/reference/files/ib55.pdf

The Indiana Department of Revenue site is here:

http://www.in.gov/dor/

I have lived in the UK since 2015 so I have not lived in indiana in 2016. I never intend to move back to the US.

As theOAP wisely stated above, Indiana State rules can be found here:
http://www.in.gov/dor/reference/files/ib55.pdf