26 CFR § 55.6151-1
Time and place for paying of tax shown on returns
June 25, 2020
The tax shown on any return which is imposed by Chapter 44 shall, without notice or assessment and demand, be paid to the internal revenue officer with whom the return is filed at the time and place for filing such return (determined without regard to any extension of time for filing the return). For provisions relating to the time and place for filing such return, see §§55.6071-1 and 55.6091-1. For provisions relating to the extension of time for paying the tax see §55.6161-1.
[T.D. 8180, 53 FR 6148, Mar. 1, 1988]