26 USC § 6407
Date of allowance of refund or credit
October 30, 2020
The date on which the Secretary first authorizes the scheduling of an overassessment in respect of any internal revenue tax shall be considered as the date of allowance of refund or credit in respect of such tax.
Amendments
1976—Pub. L. 94–455 struck out "or his delegate" after "Secretary" wherever appearing.