Here are the qualifications:
Employer Retention Credit 2020 requirements
Must have averaged less than 100 full-time employees in 2019 (99 full time and 500 partime would still be eligible)
Up to $5,000 per employee available as a refund from the IRS (regardless of what you paid-in)
Available to all employers/industries that:
suffered a 50% revenue decrease for a quarter vs 2019 (ex: Q2 2019 vs Q2 2020), or
were forced to shut down by government order, or
faced a capacity limitation (i.e. restaurant, bar, gym, etc.)
Employer Retention Credit 2021 requirements
Must have averaged less than 500 full-time employees in 2019 (499 fulltime and 5,000 parttime would still be eligible)
Up to $7,000 per employee per quarter, available as a refund from the IRS (regardless of what you paid-in)