20 CFR § 404.424
Total amount of deductions where more than one deduction event occurs in a month
February 18, 2021
If more than one of the deduction events specified in §§404.415, 404.417, and 404.421 occurred in any 1 month, each of which would occasion a deduction equal to the benefit for such month, only an amount equal to such benefit is deducted.