Yes, all business name are to file monthly Value. Added Tax (Vat) with the Federal Inland Revenue Service (FIRS). Infact you are to register with the FIRS for VAT within 6 months of registration.
Vat is charged at 5%. It is tax imposed on the supply of goods and services.
Vat is to be filed on or before the 21st of every month following when the Vat was collected. (Meaning you file the vat of December on the 21st of January) and failure to file vat would result in you incuring a fine of N5000 for the month of default.
Please note that some goods are exempted from filing VAT,so if the business name deals in such goods, you might not be liable to file VAT.