What If We Had a Revenue Decrease in Q4, 2020 and Then an Increase in Q1, 2021? You can apply for ERTC if a loss in revenue (or hold in operations) occurred in ANY quarter of 2020. By Greg Preite|2022-08-18T08:44:50-07:00August 18th, 2022|Employee Retention Tax Credits| Share This Story, Choose Your Platform! FacebookTwitterLinkedInWhatsAppPinterestEmail