How long you have to file a complaint depends on the type of complaint. Generally, False Claims Act violations have a filing deadline of six years from the when the violation occurred or three years from when the government knew or should have known about it, whichever occurs last. In no event can a case be brought more than 10 years after the violation.
Retaliation claims under the False Claims Act may not be brought more than 3 years after the date when the retaliation occurred.
Whistleblower complaints and whistleblower retaliation complaints may have different timing requirements. To accurately answer this question for your unique circumstances, you should speak with an attorney with experience in whistleblower cases.