Turbotax asked me if I was wanted to defer the self-employment tax payment, I said yes. My tax return doesn't show that, how do I defer, do I just short-pay the amount?

thew return shows my full liability for April 15th and the payment voucher created has the same amount.  I found and verified in the instructions/worksheet that I am eligible but don't want to short pay any amounts the IRS may be expecting.