Seven firms were late paying NI
Six Island residents have been fined more than £2,200 collectively, plus costs, for failing to submit their income tax returns on time.
They were charged for a total of 11 offences.
Meanwhile, seven Island firms have been fined for not paying their National Insurance contributions on time.
A total of 19 charges were imposed against companies, including Regal Aluminium and Miracles.
Magistrates issued fines totalling £1,980.
The businesses also had to pay costs of more than £750.