Example. For the last two calendar quarters of 1991 and the first two calendar quarters of 1992, Bank A reports employment taxes with respect to wages paid totalling in excess of $50,000. For the same four quarters, pursuant to section 3406, A withholds income tax with respect to dividend payments in an amount aggregating less than $50,000. For deposit and reporting purposes, A treated the backup withholding amounts separately from the employment taxes with respect to wages paid. Accordingly, for calendar year 1993, if A chooses to treat the items separately, A must use the Semi-Weekly rule of § 31.6302-1(c)(2) to deposit taxes with respect to wages paid but may use the Monthly rule of § 31.6302-1(c)(1) for the deposit of backup withholding amounts. If A chooses not to treat the items separately, the Semi-Weekly rule would apply to the combined amount of both the taxes with respect to wages paid and the backup withholding amounts.
26 C.F.R. §31.6302-3