eNC5Q eNC5Q Application File Form NC-5Q The eNC5Q Application can be used by semi-weekly filers to file Form NC-5Q online. For the best user experience, please ensure you are using the most up-to-date version of your web browser and your internet upload speed exceeds 4kbps. NOTE: The eNC5Q Application will be unavailable every Sunday from 4 a.m. to noon for scheduled maintenance. Resources New to eNC5Q Print Step-By-Step Guides Filing Options Software Developer Resources Contact Us File Specifications Review our file specifications. FAQs Access eNC5Q Frequently Asked Questions. Approved Software Find approved software. April 7, 2020 eNC5Q Overview