You do not enter it anywhere as a deduction on your return.
And the box 14 contributions may not qualify for the form 8880 credit ....Line 2 instructions are here:
Include on line 2 any of the following amounts.
- Elective deferrals to a 401(k) or 403(b) plan (including designated Roth contributions under section 402A), or to a governmental 457, SEP, or SIMPLE plan.
- Voluntary employee contributions to a qualified retirement plan as defined in section 4974(c) (including the federal Thrift Savings Plan).
- Contributions to a 501(c)(18)(D) plan.
