Statute of Limitations | HR Glossary

Statute of limitations in employment law sets the maximum time an employee or agency can file a legal claim after an alleged violation. EEOC charges must be filed within 180 days (or 300 days in states with fair employment agencies). Most federal employment law claims have specific windows ranging from 2 to 4 years. HR teams must align documentation retention policies to these deadlines.

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Why statute of limitations rules exist

Statutes of limitations serve two interests simultaneously. They protect claimants by creating pressure for prompt reporting, which preserves evidence and witness memory while facts are fresh. They protect defendants (including employers) by setting a defined endpoint after which they can no longer be sued for past conduct — a principle sometimes called the right to repose. Courts recognise that evidence degrades, witnesses leave, and documentary records become incomplete over time. Fixed filing deadlines force disputes into the legal system while resolution is still feasible.

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EEOC charge filing windows

For federal discrimination claims, the filing process starts with the Equal Employment Opportunity Commission (EEOC) rather than a court. An employee must file a charge with the EEOC before they can sue in federal court — a requirement called administrative exhaustion. Two time windows apply depending on geography.

180-day rule (non-deferral states)

In states without a parallel state agency enforcing equivalent anti-discrimination law, an employee has 180 calendar days from the discriminatory act to file an EEOC charge. Missing this window generally bars the federal claim entirely.

300-day rule (deferral states)

In states that have a state or local agency enforcing comparable discrimination law — called deferral states — the EEOC charge window extends to 300 calendar days. Most US states are deferral states. This longer window reflects the requirement that the charge be filed first with the state agency before the EEOC takes jurisdiction.

After the EEOC charge is filed

Once an EEOC charge is filed, the commission has 180 days to investigate and attempt conciliation. If it does not resolve the matter, the claimant can request a Right-to-Sue letter. After receiving that letter, the claimant has 90 days to file a lawsuit in federal court. Missing the 90-day window forfeits the right to sue in court even if the EEOC charge was filed on time.

Federal employment law deadlines: reference table

Different federal statutes carry different filing deadlines. HR and legal teams need to know the relevant window for each claim type they are likely to encounter.

Law	What it covers	EEOC filing deadline	Court filing deadline	Notes
Title VII (Civil Rights Act)	Race, colour, religion, sex, national origin discrimination	180 days (300 in deferral states)	90 days after Right-to-Sue letter	Applies to employers with 15+ employees
ADA (Americans with Disabilities Act)	Disability discrimination and accommodation failures	180 days (300 in deferral states)	90 days after Right-to-Sue letter	Applies to employers with 15+ employees
ADEA (Age Discrimination in Employment Act)	Age discrimination against workers 40+	180 days (300 in deferral states)	90 days after Right-to-Sue letter; or directly after 60 days from charge filing	Applies to employers with 20+ employees
Equal Pay Act (EPA)	Sex-based wage discrimination	No EEOC charge required; direct court filing	2 years from last discriminatory paycheck; 3 years if willful	Can run concurrently with Title VII pay claim
FLSA (Fair Labor Standards Act)	Wage theft, overtime, minimum wage violations	No EEOC charge required; direct court or DOL filing	2 years; 3 years if willful violation	Each pay period with an underpayment restarts the clock
FMLA (Family and Medical Leave Act)	Interference with or retaliation for FMLA leave	No EEOC charge required	2 years; 3 years if willful	File directly with DOL or federal court
OSHA (retaliation complaints)	Retaliation for reporting safety violations	30 days from retaliatory act	Determined by OSHA investigation outcome	One of the shortest windows in employment law

State law and why it often controls

Federal deadlines set a floor, not a ceiling. Many states extend protection beyond federal law and impose their own statutes of limitations. California’s Fair Employment and Housing Act (FEHA), for example, gives claimants three years from the discriminatory act to file with the California Civil Rights Department (formerly DFEH) — compared to the 300-day federal window. New York’s Human Rights Law similarly provides extended filing periods.

Enterprise HR teams operating across multiple states must map each state’s relevant limitations period for each claim type. A policy built solely on federal deadlines may not protect the organisation in states with longer windows. For HR generalists handling multi-state workforces, a jurisdiction-specific reference document is a practical compliance tool.

Tolling: when the clock stops

Tolling suspends a statute of limitations, pausing the clock in specific circumstances. Common tolling triggers in employment law include:

Continuing violation doctrine: Where discriminatory conduct is ongoing (for example, a hostile work environment), the limitations period may not begin until the last act of discrimination rather than the first. This is distinct from discrete acts like a single termination decision, which trigger the clock immediately.
Discovery rule: Some claims allow the limitations period to begin when the claimant discovered the harm rather than when it occurred. Pay equity claims sometimes use this rule when employees were unaware of wage disparities.
Fraudulent concealment: If an employer actively concealed the discriminatory act, courts may toll the period until the employee could reasonably have discovered it.
Equitable tolling: Courts can extend filing windows where a claimant was misled, lacked access to legal counsel, or faced extraordinary circumstances beyond their control.

HR teams should not assume that a claim is time-barred without legal review. Tolling arguments regularly survive motions to dismiss, and an employer who relies on an expired clock may face litigation anyway.

HR documentation retention tied to statute windows

The practical HR implication of statutes of limitations is document retention. If a former employee can file a wage claim up to three years after leaving, the organisation needs payroll records, time records, and offer letters going back at least that long. If a discrimination claim can be filed two to three years after a hiring decision (depending on state), interview notes, assessment results, and selection rationale need to be retained.

The EEOC recommends that employers covered by Title VII, ADA, and ADEA retain all personnel and employment records for at least one year from the date of the personnel action. For employers subject to OFCCP jurisdiction (federal contractors), retention requirements extend to two years for records related to selection decisions. Most enterprise legal teams add a buffer and retain employment records for four to seven years, covering both federal minimums and longer state windows.

Recommended minimum retention periods

Record type	Federal minimum	Enterprise best practice
Payroll and wage records	3 years (FLSA)	5-7 years
Hiring records (applications, interview notes, assessments)	1 year from action date (EEOC)	3-5 years
I-9 forms	3 years from hire date or 1 year after termination (whichever is later)	Per statutory minimum, plus audit buffer
FMLA records	3 years	5 years
OSHA logs and incident records	5 years	7 years
Benefits plan documents	6 years (ERISA)	6+ years

HR operational implications

Beyond records retention, statute of limitations rules shape several HR operational decisions.

Internal complaint handling. When an employee raises an internal complaint, HR should document the date, the nature of the allegation, and the steps taken. This creates a contemporaneous record that is far more credible than reconstructed notes if the matter later surfaces as an EEOC charge or lawsuit.

Separation agreements. Employers often include waivers of claims in severance agreements. Under the ADEA, waivers of age discrimination claims must meet specific standards under the Older Workers Benefit Protection Act (OWBPA), including a 21-day consideration period (45 days for group layoffs) and a 7-day revocation window. A waiver that does not meet OWBPA standards is unenforceable — the employee can still bring the ADEA claim regardless of the signed agreement.

Manager training. Frontline managers are often unaware that retaliatory acts (reassignment, exclusion from projects, negative references) trigger their own OSHA or Title VII limitations clock, independent of the original complaint. Training managers to document performance concerns contemporaneously and route conduct concerns through HR reduces the risk of a retaliation claim succeeding on the merits.

Assessment and hiring records. When skills assessments are used in hiring, the selection rationale, test scores, and adverse impact data should be retained for the full limitations period applicable in each state where hiring occurred. This supports defensibility in an OFCCP audit or disparate impact challenge.

Frequently asked questions about statute of limitations in employment

For federal discrimination claims under Title VII, ADA, or ADEA, an employee must file a charge with the EEOC within 180 days of the discriminatory act — or 300 days if the state has its own anti-discrimination agency. After the EEOC process, the employee has 90 days from receiving a Right-to-Sue letter to file a lawsuit in federal court.

The EEOC charge filing deadline is 180 calendar days from the discriminatory act in non-deferral states, and 300 calendar days in deferral states (states with parallel state agencies enforcing equivalent anti-discrimination law). Missing these deadlines generally bars the federal claim. Most US states are deferral states, so the 300-day window applies in most cases.

Wrongful termination is not a single federal claim — the applicable statute of limitations depends on the underlying legal theory. A termination based on discrimination triggers the EEOC’s 180/300-day window. A termination in retaliation for FMLA leave carries a 2-year FMLA limitations period (3 years if willful). State-law wrongful termination claims vary widely, from 1 to 4 years depending on jurisdiction.

Under the Fair Labor Standards Act (FLSA), an employee has 2 years from the date of the violation to file a wage claim, or 3 years if the employer’s violation was willful. For Equal Pay Act claims, the same 2/3-year window applies from the last discriminatory paycheck. State wage and hour laws often have longer windows — California, for example, allows 3 years for FLSA-equivalent state claims.

Tolling is the legal suspension of a statute of limitations, pausing the clock until a specific condition is met. Common employment law tolling grounds include the continuing violation doctrine (where ongoing harassment delays the start of the clock until the last act), the discovery rule (clock starts when the claimant learned of the harm), fraudulent concealment by the employer, and equitable tolling where extraordinary circumstances prevented timely filing.

EEOC regulations require a minimum of one year from the date of the personnel action for hiring records. FLSA requires three years for payroll records. Federal contractors under OFCCP jurisdiction must retain selection records for two years. Enterprise best practice is to retain all employment records for 4 to 7 years to cover both federal minimums and longer state-law limitations periods.

Employers sometimes include shortened limitations periods in employment agreements — for example, requiring employees to bring any claim within 6 months of termination. Courts have split on whether these clauses are enforceable for federal discrimination claims. For ADEA claims specifically, the Older Workers Benefit Protection Act (OWBPA) sets strict standards for valid waivers. Any contractual limitation on discrimination claims should be reviewed by employment counsel before use.

Under the Age Discrimination in Employment Act (ADEA), an employee must file an EEOC charge within 180 days of the discriminatory act (300 days in deferral states). After the EEOC process, the employee can file in federal court 60 days after the charge is filed — they do not need to wait for the EEOC to complete its investigation. Employers with 20 or more employees are covered by the ADEA.

Statute of limitations in employment law