I enter it on Screen 15, under pension, profit-sharing plans (code 29 if you speak batch entry).

IF you are doing the W-2, make sure the retirement plan box is checked.

I do think we need a bit more info from @gclark .  

Perhaps s/he is actually asking how to enter info in the individual module rather than the S-Corp module.

@gclark Could you add a bit more information. Are you trying to create a SEP deduction on the 1040 for the shareholder? Do they any other SE income?

https://www.irs.gov/retirement-plans/retirement-plan-faqs-regarding-contributions-s-corporation

Trying to enter SEP contribution on individual module.  Want to maximize contribution

No other self employment income - S Corp and W2  only

The SEPP contribution is done at the S-Corp level, and is based on the W-2 wages.

It isn't done/taken on the F 1040 for the S-Corp W-2 wages, OR the distributions, OR the K-1 flow thru income.

(And where have you been for the last year, since you originally posted the question?)

"(And where have you been for the last year, since you originally posted the question?)"

I've reported this, similar to what I noticed last week, in Community Suggestions. When you click the username, that listing shows everything is from 2021.

That is not allowed. The SEP based on his wages is only allowed on the 1120S return.

Does the company have other employees that are not "covered" in his fictional SEP?