Example. A, a home worker, performs services for X, a manufacturer, in 2003 and 2004. In the performance of the home work A is an employee by reason of section 3121(d)(3)(C). In March 2004, A returns to X articles made by A at home from materials received by A from X in 2003. X pays A cash remuneration of $100 for such work when the finished articles are delivered. The $100 includes $10 which represents remuneration for home work performed by A in 2003. The entire $100 is subject to the taxes. Any additional cash remuneration paid by X to A in 2004 for such services is also subject to the taxes.
26 C.F.R. §31.3121(a)(10)-1