Paying prepayment taxes via the IRS website vs. via mail

Im trying to be more focused on privacy and was wondering if anyone pays prepayment taxes through the IRS account online. I haven’t created one. My tax preparer keeps recommending me create one to keep track of payments. Admittedly, paying online would be easier, but wondering if it is smart. I guess they already know who I am from filing taxes online, although my tax preparer does that.

It looks like I need to verify through ID.me. If I already …

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