There is no specific form you need to file to claim the credit. Most employers will claim the ERC on their Form 941, Employer’s Quarterly Federal Tax Return, but some will use the Form 933, Employer’s Annual Federal Tax Return. If your business’s ERC is larger than its federal employment tax obligation, it can file a Form 7200, Advance Payment of Employer Credits Due to COVID-19, and ask for an advance on the credit.