Let me address your query about filing the Ohio IT 3 form in QuickBooks Desktop (QBDT), @46Sandy. 

QuickBooks doesn’t e-file your Form IT 3 after e-filing your Ohio IT 941. The two forms may report the same details which the employer is required to send to each employee and the Internal Revenue Service (IRS) at the end of the year. However, form IT 3 is the transmittal of wage and tax statements mandated by the State of Ohio. 

Moreover, if you have electronically filed your W-2 to the IRS with QuickBooks, they will automatically send a copy to your state agency if required. 

Furthermore, learn to pay and file your payroll taxes electronically for a hassle-free process. After that, you can view your previously filed tax forms and payments to access them anytime. 

Fill me in if you have more concerns about filing taxes in QBO. The Community is open 24/7 to assist you. Take care!