Maine Income Tax Withholding Payment and Filing Requirements
Employers in Maine must conform with these state rules relating to filing income tax withholding returns.
Periodic Returns. Quarterly Form 941-ME or Form 941/C1-ME must be filed by the last day of month following end of the quarter. Semi-weekly (Form 900ME) filing may be required.
Annual Reconciliation Returns. Form W-3 ME due by February 28.