Time Limits For Filing A Charge, U.S. Equal Employment Commission
The anti-discrimination laws give you a limited amount of time to file a charge of discrimination. In general, you need to file a charge within 180 calendar days from the day the discrimination took place. The 180 calendar day filing deadline is extended to 300 calendar days if a state or local agency enforces a law that prohibits employment discrimination on the same basis. The rules are slightly different for age discrimination charges. For age discrimination, the filing deadline is only extended to 300 days if there is a state law prohibiting age discrimination in employment and a state agency or authority enforcing that law. The deadline is not extended if only a local law prohibits age discrimination.
Note: Federal employees and job applicants have a different complaint process, and generally must contact an agency EEO Counselor within 45 days. The time limit can be extended under certain circumstances.
Regardless of how much time you have to file, it is best to file as soon as you have decided that is what you would like to do.
Time limits for filing a charge with EEOC generally will not be extended while you attempt to resolve a dispute through another forum such as an internal grievance procedure, a union grievance, arbitration or mediation before filing a charge with EEOC. Other forums for resolution may be pursued at the same time as the processing of the EEOC charge. . . .