The tax for any calendar year is measured by the amount of wages paid by the employer during such year with respect to employment after December 31, 1938. (See § 31.3306(b)-1, relating to wages, and §§ 31.3306(c)-1 to 31.3306(c)-3, inclusive, relating to employment.)
[T.D. 6658, 28 FR 6632, June 27, 1963]