To report age discrimination, you should call the Equal Employment Opportunity Commission (EEOC) at 1-800-669-4000 or visit the EEOC website to file a charge. In most cases, you will need to file a claim within 180 days of when the event occurred, although some states allow you to file a claim within 300 days. Once you file a claim, the EEOC will contact your employer to investigate. Your employer may choose the remedy the situation. While not common, the EEOC may decide to take legal action on your behalf. Once you have filed a charge with the EEOC, you can then file a lawsuit against your employer for unlawful discrimination.