The Ohio Dept. of Taxation is reminding taxpayers that May fiscal year-end municipal net profit tax (MNPT) returns are due Sept. 15, 2021. Taxpayers who’ve opted in for centralized filing with the department are required to file and pay the MNPT electronically via the Ohio Business Gateway at gateway.ohio.gov or the Modernized e-File system. The department emphasizes that taxpayers shouldn’t submit tax returns to the municipality.