You have just become the HR person. Maybe you were promoted from office manager, maybe you are a new generalist inheriting a file cabinet and a shared drive from someone who left. Nobody handed you a list of what must be right on day one, and the people around you are already asking about hiring, a problem employee, and the benefits renewal.
This plan covers the HR fundamentals in the order that risk dictates: first find out which laws apply and fix the things with hard deadlines, then repair the processes, then build the routines that keep them fixed. It focuses on federal requirements. State and local law frequently adds to them, so treat every item as a floor.
HR Fundamentals Start With Headcount: Which Laws Apply
Most federal employment laws switch on at a headcount. Get three numbers from payroll before anything else: total employees on the payroll, employees at each location, and the states where people work, including remote employees.
| Employees | What generally applies (federal) | Source and notes |
|---|---|---|
| 1 or more | Form I-9 for every person hired; FLSA minimum wage, overtime, and recordkeeping for covered employees; Equal Pay Act; OSHA general duties and the OSHA poster | USCIS; U.S. Department of Labor. FLSA and Equal Pay Act coverage has its own tests, but most employers are covered. |
| More than 10 | OSHA injury and illness recordkeeping for many employers | OSHA states that certain industries are exempt. |
| 15 or more | Title VII, the Americans with Disabilities Act, the Pregnant Workers Fairness Act | EEOC. Counted as 15 or more employees for each working day in each of 20 or more calendar weeks in the current or preceding calendar year. The Genetic Information Nondiscrimination Act uses the same threshold. |
| 20 or more | Age Discrimination in Employment Act; COBRA | EEOC for the ADEA (same 20-week counting rule). The Department of Labor describes COBRA as applying to group health plans sponsored by employers with 20 or more employees in the prior year. |
| 50 or more | Family and Medical Leave Act; Affordable Care Act employer shared responsibility | FMLA: private employers with 50 or more employees in 20 or more workweeks in the current or previous calendar year. ACA: at least 50 full-time employees, including full-time equivalents, on average during the prior year, per the IRS. |
| 100 or more | WARN Act notice for plant closings and mass layoffs; EEO-1 reporting for private employers | Check current WARN coverage definitions, EEO-1 filing thresholds, and deadlines with the Department of Labor and EEOC. |
Three cautions about the table
- Each law counts differently. The EEOC explains that for Title VII, the ADA, and the ADEA, an employee is counted for each week in which the employment relationship exists, whether or not the person works every day, so part-time employees count. The ACA counts full-time employees and full-time equivalents. Do not reuse one number for every law.
- Coverage is not eligibility. A 60-person company is covered by the FMLA, but an individual employee is eligible only after 12 months of service and 1,250 hours in the preceding 12 months, and only if the employer has at least 50 employees within 75 miles of that employee's worksite.
- State law often reaches smaller employers. Many state anti-discrimination, leave, and health continuation laws apply well below the federal thresholds. See our HR training by state resources and confirm the rules for every state on your list.
For background on what each statute requires, read our overview of employment law basics for HR.
Days 1 to 30: Find Out Where You Stand
The first month is assessment plus the handful of items with fixed legal deadlines. Resist the urge to rewrite the handbook.
1. Check Form I-9 compliance
Every employer must complete a Form I-9 for each person hired. USCIS guidance sets the timing: the employee completes Section 1 no later than the first day of employment, and the employer completes Section 2 within three business days of the first day of work for pay. The employee chooses which acceptable documents to present; do not ask for specific ones.
What to do now:
- Confirm you are using a current edition of the form. Check the accepted edition at USCIS.gov/I-9.
- Pull a sample of forms for current employees. Look for missing forms, blank fields, and late completion dates.
- Find out where the forms are stored. USCIS allows paper or electronic storage, on site or off site, but you must be able to present them within three business days of a government request.
- Learn the retention rule: keep each form for three years after the date of hire or one year after employment ends, whichever is later.
If you find errors, do not backdate. Talk to counsel about correcting forms properly before you change them. Employers enrolled in E-Verify may be able to use the alternative procedure for examining documents remotely; confirm the conditions with USCIS first.
2. Review FLSA classification
Ask payroll for a list of every employee treated as exempt from overtime, with job title, pay, and a one-line description of what the person does. Under the U.S. Department of Labor's rules, the main white-collar exemptions generally require that the employee be paid on a salary basis, at no less than the required salary level, and perform duties that meet the test for an executive, administrative, or professional exemption. The Department is explicit that job titles do not determine exempt status.
Check the current salary level at the U.S. Department of Labor, and check your state, since several states set a higher salary threshold or a stricter duties test.
In month one, you are only looking for obvious problems: salaried employees below the salary level, "managers" who manage no one, and clerical staff treated as exempt. List them. Fixing them is a month-two project that needs leadership and usually counsel, because the method of correction affects back-pay exposure.
3. Walk the building and check the posters
The Department of Labor notes that posting requirements vary by statute and that not every employer is covered by each one. Its elaws Poster Advisor identifies which federal posters you need. Commonly required federal postings include:
- FLSA minimum wage poster, for employers with any employee subject to the FLSA
- OSHA "Job Safety and Health: It's the Law," for private employers engaged in a business affecting commerce
- Employee Polygraph Protection Act notice
- USERRA notice of rights
- EEOC "Know Your Rights: Workplace Discrimination is Illegal," posted where notices to applicants and employees are customarily posted
- FMLA poster, for covered employers. The Department of Labor states it must be displayed at all locations even if no employees there are eligible.
Federal contractors have additional postings, and every state has its own set. Check each poster against the agency's current version, and decide how remote employees will see them; the EEOC encourages digital posting in addition to the physical notice.
4. Find the records
Locate personnel files, payroll records, medical and leave documents, I-9s, and investigation files, and note who has access. You are checking three things: medical information is kept apart from personnel files, I-9s can be produced quickly, and nothing is being destroyed without a schedule.
5. Read what already exists, and meet people
Read the handbook and any open agency charges, demand letters, or audits. Meet each department head and ask what has gone wrong and what is coming in the next six months. Find out who your outside employment counsel, benefits broker, and payroll contact are, and whether you may call them.
Clarify your own authority too; see HR generalist vs. HR manager vs. HR coordinator.
Days 31 to 60: Fix the Processes
Month two turns the findings into repairs, starting with the highest exposure.
1. Correct I-9 and classification problems
Take your lists to leadership with a recommended plan, and involve counsel on anything involving back pay or a pattern of missing I-9s. Document what was found, what was corrected, and when.
2. Set a retention schedule
Different laws set different minimums. A few federal anchors:
| Record | Federal minimum | Source |
|---|---|---|
| Payroll records | At least three years | DOL (FLSA) |
| Records on which wage computations are based, such as time cards and wage rate tables | Two years | DOL (FLSA) |
| Personnel and employment records (applications, hiring, promotion, discipline, termination records) | One year from the making of the record or the personnel action; one year from termination for an involuntarily terminated employee | EEOC |
| Payroll records under the ADEA | Three years | EEOC |
| All records relevant to a pending charge | Until final disposition of the charge or any lawsuit | EEOC |
| Form I-9 | Three years after hire or one year after employment ends, whichever is later | USCIS |
| OSHA injury and illness logs | Confirm the applicable retention period and annual posting requirements under 29 CFR Part 1904 | OSHA |
These are minimums; many employers keep records longer to cover state requirements and claim limitation periods. Our HR document retention schedule covers the full list.
3. Standardize hiring and onboarding
Create one new-hire packet and one sequence: offer letter, I-9 within the deadlines, tax forms, state new-hire reporting, required notices, benefits enrollment, and handbook acknowledgment. Use the HR onboarding checklist as a base and add your state's items.
4. Build a leave and accommodation intake
Managers should know one thing: when an employee mentions a medical issue, pregnancy, a family member's health, or military service, they call HR before responding. On your side, set up a single intake form and a checklist of the laws to consider: the FMLA if you are covered, the ADA and the Pregnant Workers Fairness Act at 15 or more employees, workers' compensation, and any state leave or paid sick leave law.
If you sponsor a group health plan and have 20 or more employees, confirm who sends COBRA notices and how they learn of a qualifying event. Many states have continuation rules for smaller employers. Check state continuation requirements for each state where you have covered employees.
5. Set up a complaint procedure and OSHA basics
Make sure employees have more than one way to raise a complaint and that you have a standard way to document and investigate one. If you have more than 10 employees and are not in an exempt industry, confirm that injury and illness records are being kept. Every employer should know OSHA's reporting deadlines: a work-related fatality within 8 hours, and an inpatient hospitalization, amputation, or loss of an eye within 24 hours.
If this list contains more than one area you have never handled, this is the point where training pays off. The HR Generalist Certificate Program covers these topics in three days of live instruction, with case studies, interactive exercises, and a workbook of sample forms and checklists.
Days 61 to 90: Build the Routine
By month three, the urgent items should be under control. Now make the fixes permanent.
- Update the handbook. Start with policies the law requires or that your audit showed were wrong. Have counsel review before distribution.
- Train supervisors. Cover the essentials: wage and hour basics, how to respond to leave and accommodation requests, how to receive a complaint, and documentation.
- Create a compliance calendar. Include poster checks, benefits deadlines, required filings, I-9 purge dates, and policy reviews. Our HR compliance calendar lists the federal dates.
- Schedule a self-audit. Put an annual review on the calendar using the steps in how to conduct an HR audit.
- Report to leadership. Prepare a two-page summary: what you found, what is fixed, what is still open, and what you need.
- Plan your own development. List the areas where you had to look everything up, and choose training that closes them. If you are weighing credentials, see HR certificate vs. HR certification.
Frequently Asked Questions
What are the fundamentals of HR?
At minimum: lawful hiring and employment verification, correct pay and classification, required notices and posters, accurate and confidential records, leave and accommodation handling, a working complaint procedure, and consistent documentation of employment decisions.
What should a new HR person do in the first 90 days?
Establish which laws apply by headcount and state, check I-9s, exempt classifications, posters, and records in the first month, repair processes in the second, and build training, a calendar, and an audit routine in the third.
At what number of employees do federal employment laws apply?
Generally: Title VII, the ADA, and the Pregnant Workers Fairness Act at 15 employees; the ADEA and COBRA at 20; and the FMLA at 50. Form I-9 and, for covered employers, the FLSA apply from the first employee. State laws often apply at lower numbers.
How long do I have to complete a Form I-9?
According to USCIS, the employee must complete Section 1 no later than the first day of employment, and the employer must complete Section 2 within three business days of the first day of work for pay.
The Bottom Line
The HR fundamentals are not glamorous: who is covered by what, whether the I-9s and classifications are right, whether the notices are on the wall, and whether the records are where they should be. Get those right in your first 90 days and you have removed the problems most likely to surface in an audit or a claim, and earned the credibility to work on everything else. This article is general education, not legal advice; bring counsel in on corrections that carry back-pay or penalty exposure.
To cover the full range of generalist responsibilities with an instructor and working examples, see the HR Generalist Certificate Program. For statute-by-statute courses, browse our Employment Law Training. You can also test your readiness against our HR generalist interview questions, or go back to the HR Generalist Guide.


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