Domestic service
For purposes of this chapter, in the case of domestic service described in subsection (a)(7)(B), any payment of cash remuneration for such service which is more or less than a whole-dollar amount shall, under such conditions and to such extent as may be prescribed by regulations made under this chapter, be computed to the nearest dollar. For the purpose of the computation to the nearest dollar, the payment of a fractional part of a dollar shall be disregarded unless it amounts to one-half dollar or more, in which case it shall be increased to $1. The amount of any payment of cash remuneration so computed to the nearest dollar shall, in lieu of the amount actually paid, be deemed to constitute the amount of cash remuneration for purposes of subsection (a)(7)(B).