Definition · HR operations and employee relations

Personnel File

By TapTalent Editorial TeamUpdated

Definition

Personnel file is the employer's official record of an individual's employment: hiring documents, job and pay history, performance reviews, training, discipline and separation records. US law requires some records to be kept for set periods and others, such as medical and Form I-9 records, to be stored separately. Many states give employees a right to see their file.

Also called: Employee file, Employee records, Personnel record, HR file

Formula

Form I-9 retention end date = the later of (Hire date + 3 years) or (Termination date + 1 year)

Hire date
The employee's first day of work for pay.
Termination date
The last day of employment.

Worked example

Dana was hired on March 1, 2022 and left on June 30, 2023. Hire date + 3 years = March 1, 2025. Termination + 1 year = June 30, 2024. The later date is March 1, 2025, so her Form I-9 must be kept until then. Had she left in October 2024, the date would be October 2025.

What belongs in a personnel file

  • Application or resume, and the signed offer letter or employment contract
  • Job description and history of titles, departments, locations and managers
  • Pay history: starting rate, raises, promotions, bonus letters
  • Form W-4 and state withholding forms (sometimes kept with payroll records instead)
  • Handbook and policy acknowledgments
  • Performance reviews, goals and improvement plans
  • Training and certification records
  • Commendations and recognition
  • Disciplinary records and the employee's written responses
  • Leave approvals (not the medical details)
  • Separation records: resignation letter or termination notice, final pay, exit documents

Keep what supports employment decisions; avoid manager notes that wander into personal opinion or life outside work.

What to keep separately

Several record types should be stored outside the main personnel file, with tighter access:

  • Medical information: The ADA requires employers to keep medical information about employees and applicants, including doctor's notes, accommodation documentation and medical exam results, confidential and in separate files. FMLA medical certifications and GINA-covered genetic information are treated the same way.
  • Form I-9s: kept together in a separate file or system so a government inspection doesn't expose unrelated records, and so they're not used in other decisions.
  • Workplace investigation files: complaint, interview notes, evidence.
  • Background check reports.
  • Voluntary self-identification data (race, ethnicity, sex, veteran and disability status) used for EEO reporting, which must not be available to decision-makers.
  • Benefits enrollment and beneficiary records.

Most employers now keep all of these in an HRIS or document system with role-based permissions rather than paper folders.

Employee access rights

There's no general federal right for private-sector employees to see their personnel file, but many states provide one. California gives current and former employees the right to inspect their personnel records within 30 days of a written request. Illinois's Personnel Record Review Act gives employees access and the right to submit a rebuttal of disputed information. Massachusetts requires employers to provide access and to notify employees within 10 days of placing negative information in the file. Other states, including Connecticut, Michigan, Oregon and Washington, have their own rules. Union contracts often add access rights. Rules vary by state, so set an access procedure that meets the strictest state where you employ people.

In the EU and UK, employees can request their personal data, including much of their personnel file, through a data subject access request under the GDPR.

HR record retention periods

Common US federal minimums (state law may require longer):

  • Hiring and personnel records (applications, promotion, discipline, termination): at least 1 year from the record or action under EEOC regulations, and longer if a charge is filed.
  • Payroll records under the FLSA: 3 years; supporting time cards and wage rate tables: 2 years.
  • Form I-9: the later of 3 years after hire or 1 year after termination (see the formula above).
  • FMLA records: 3 years.
  • OSHA injury and illness logs: 5 years.
  • Records of exposure to toxic substances: duration of employment plus 30 years.

Federal contractors have additional OFCCP rules. Many employers simply keep core personnel files for several years after separation to cover state statutes of limitations. Applicant data follows its own schedule; see candidate data retention.

Good practice for HR teams

  • Define what goes in each file type, and train managers on it.
  • Limit access by role: managers see performance records for their team, not medical or benefits data.
  • Log who accessed or changed records.
  • Set retention schedules and actually delete records when they expire, unless a legal hold applies.
  • Audit a sample of files every year. A regular HR audit usually finds missing acknowledgments, I-9 errors and medical documents in the wrong place.

In high-volume, high-turnover operations, the number of files grows quickly. A 1,000-employee contact center with 60% annual turnover creates around 600 separated-employee files a year, all with different retention end dates. Automating retention and deletion by record type is the only practical approach at that scale.

Frequently asked questions

What should be in an employee personnel file?

Hiring documents, job and pay history, policy acknowledgments, performance reviews, training records, discipline and separation documents. Medical, I-9 and investigation records belong in separate files.

Can an employee request their personnel file?

In many states, yes. California, Illinois, Massachusetts and several others give employees a right to inspect or copy their file. There's no general federal right for private-sector employees.

How long should employers keep employee records?

Federal minimums range from 1 year for most personnel records to 3 years for payroll and FMLA records, with special rules for I-9s and longer periods for some safety records. State laws may require longer.

Should medical records be kept in the personnel file?

No. The ADA requires employee medical information to be kept confidential and in separate files with restricted access.

What is the difference between a personnel file and employee records?

Employee records is the broader term covering every record about an employee, including payroll, benefits, medical and I-9 files. The personnel file is the core employment record within that set.