u/More-Emu7196

Hi All, this is the first year I am owing on my taxes due to early withdrawal towards purchasing a primary home. My question is, what is the process of repayment? I owe $14845 but don't want to do a bulk payment and want to enroll in short term payment plan, I also see that I can select a future date within the next 365 days for automatic deduction. I am not worried about the interest, Do I have to wait till I get a notice from IRS or enroll in the payment plan upfront?