The Coronavirus Aid, Relief, and Economic Security Act (also known as the CARES Act) was signed into law on March 27, 2020. It included two programs to assist businesses with keeping workers employed: the Payroll Protection Program (PPP) administered by the Small Business Adminstration and Employee Retention Tax Credit (ERTC) administered by the Internal Revenue Service.
PPP funds are distributed based on 2.5 months of payroll and a minimum of 80% of the funds must be used on payroll to be eligible for forgiveness. Additionally, PPP funds are not taxable as revenue and you may still take deductions for the payroll covered by PPP.
ERTC tax credits, however, are credits (or refunds) for a percentage of payroll in each quarter that you qualify. There are specific rules for determining eligibility by quarter, and limiting the dollars that can be claimed for each employee.