Roxana Enache (31), formerly of Hill Street in Ballymena but now of Patrick Place, committed the offence on July 5 this year.
She also admitted tendering a counterfeit £50 note; possessing counterfeit currency and tendering six counterfeit £50 notes.
Three charges she had faced have been withdrawn by prosecutors – possessing, tendering and attempting to tender a counterfeit £50 note’ at a Ballymena pub.
The case was adjourned to November 30 for a pre-sentence report at Ballymena Magistrates’ Court.