Home Forms Withholding Forms Withholding Exemption Certificate for Military Spouses Withholding Exemption Certificate for Military Spouses Beginning in 2017, the WECI and WECM forms were merged into the WEC form, no longer a separate form. Form Number WECM Category Withholding Forms Form Year Form Publish Date 2016 Download 01/01/2023 2015 Download 01/01/2023 2014 Download 01/01/2023 2013 Download 01/01/2014 Main navigation Corporate Tax Forms Individual Forms TPT Forms Power of Attorney Tax Credits Forms See All Forms