A claim must be filed with the Equal Employment Opportunity Commission (EEOC) within 180 days of a discriminatory act. If time allows, and it has not been more than five months since the adverse action took place, we strongly recommend reaching out to an employment rights attorney before going to the EEOC.
In the state of South Carolina, employees have up to 300 days to file a discrimination claim, as per the South Carolina Human Affairs Law, but it is best to bring the claim within 180 days if there is any argument that South Carolina law does not also prohibit that type of discrimination.