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When I print the K-1 it does not show anywhere..."
The loss should appear on Line 11 (C Code) of your K-1 and, if it doesn't, you might not have made a distribution (which is sometimes necessary despite the fact that you indicated the return was "final"). If making a distribution doesn't result in the loss being carried through to your K-1, then try entering Forms Mode and ensure that your K-1 has the appropriate IDD percentage entered in the Beneficiary's Allocation Smart Worksheet (see screenshot).
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how can I report that on my personal return"
There is a section in the personal versions of TurboTax (the online version of TurboTax Premier or higher and any Desktop/CD/Download version) where you would enter information from a K-1 that you received from a trust. You would simply enter the figures in that section and the program will take care of the rest.
"which year I can use that loss carryover?"
You can start using the loss carryover in the year listed on the K-1 (either the calendar year that appears pre-printed on the top of the K-1 or the year ending if the trust is a fiscal year trust, the latter would be highly unusual). Note that the loss will fully offset any capital gains you might otherwise have for the tax year but, if your capital losses exceed your capital gains after they are netted, the annual limit of capital losses that can be used to offset other income is $3,000 ($1,500 if married filing separately).
