In addition to income tax , a wage earner would also have to pay Federal Insurance Contributions Act tax ( FICA ) ( and an equal amount of FICA tax must be paid by the employer ) :
ADP NOUN ADP NOUN NOUN , DET NOUN NOUN AUX ADV VERB PART VERB PROPN PROPN PROPN PROPN NOUN ( PROPN ) ( CCONJ DET ADJ NOUN ADP PROPN NOUN AUX AUX VERB ADP DET NOUN ) :