Estimate your potential employee retention credit amount.This is for estimate purposes only. The actual credit is based off of documents submitted. Potential ERC amount is based off the average count qualifying for all 6 quarters of the ERC program.The ERC calculation is based on total qualified wages, including health plan expenses paid by the employer to the employee. The ERC equals 50 percent of the qualified wages for 2020 and 70% for 2021.