Interim HR Coverage: What to Do When Your HR Person Leaves or Goes on Leave

In a lot of growing companies, HR is one person. When that person resigns, goes on parental or medical leave, or is suddenly out, the work doesn't stop. New hires still need paperwork, payroll still runs, and employee questions and complaints keep coming. What changes is that no one is watching the deadlines.

This guide covers what to do in the first week, which HR deadlines can't wait, and how to choose interim HR coverage that fits the length of the gap. It is general information, not legal advice. Employment rules change and vary by state, so check the agencies named below or talk with employment counsel about your situation.

Why an HR gap is riskier than it looks

Most of what an HR manager does is routine, and that's the problem. Routine work runs on memory and habit, so it's rarely written down. When the person who knows the routine is gone, the first sign of trouble is often a missed deadline: an incomplete I-9, a late benefits notice, or an employee complaint that sat unanswered.

A short gap with a plan is manageable. A long gap without one tends to show up later as a compliance problem or an employee relations issue that got worse because no one owned it.

The first week: secure, list, assign

1. Secure access

Confirm who can get into the payroll system, the HR information system (HRIS), benefits portals and the shared drive where personnel files live. If the departing person was the only administrator, add a second one now. For a planned leave, do this before the leave starts. For a resignation, do it before the last day.

Keep confidential files confidential. The Americans with Disabilities Act regulations (29 CFR 1630.14) require employers to keep employee medical information in separate, confidential files. Whoever covers HR in the interim needs access, but that doesn't mean the whole leadership team does.

2. List what's open

Ask the HR person, or reconstruct from email and the HRIS, a list of everything in flight:

• New hires starting in the next 30 days
• Open employee complaints, investigations or accommodation requests
• Leaves of absence in progress and their return dates
• Terminations or separations in process
• Benefits enrollments, changes and COBRA notices
• Agency correspondence, such as an unemployment claim or a charge of discrimination, and its response date
• Recurring reports and filings, with their due dates

3. Assign an owner for each item

Every open item needs a named owner and a date. "Leadership will cover it" usually means no one will.

Deadlines that can't slip

These are the federal and Indiana items most likely to be missed during a gap. Dates and thresholds are as of October 2026; confirm current rules with the agency linked.

• Form I-9. New employees complete Section 1 no later than their first day of work, and the employer completes Section 2 within three business days of the first day. See USCIS's I-9 Central. Our guide to Form I-9 compliance for small employers covers the details.
• New hire reporting. Federal law requires employers to report new hires to their state. Indiana employers report through the Indiana New Hire Reporting Center within 20 days of hire.
• COBRA notices. For group health plans covered by COBRA (generally employers with 20 or more employees), the employer has 30 days after a qualifying event, such as a termination or a cut in hours, to notify the plan administrator, and the administrator then has 14 days to send the election notice. The U.S. Department of Labor's Employee Benefits Security Administration explains the timeline.
• Final pay. Under Indiana Code 22-2-9-2, wages for an employee who is separated are due at the next regular payday for the pay period in which the separation happened. Other states have different rules if you have employees outside Indiana.
• FMLA notices. If you have 50 or more employees, the Family and Medical Leave Act requires you to respond to leave requests with eligibility and rights notices within set time frames. The DOL Wage and Hour Division's FMLA fact sheets lay these out.

Put every one of these on a shared calendar with the interim owner's name on it.

Planned leave vs. a sudden departure

A planned leave gives you time. Use it. Ask the HR person to write down their recurring tasks, open items and key contacts at least a few weeks ahead, and have the interim owner shadow them before the leave starts. If your HR manager is taking FMLA leave, remember that the law protects their job. Interim coverage is a bridge back to them, not a replacement. The DOL's FMLA page explains employer obligations, including restoring the employee to the same or an equivalent position.

A sudden departure means rebuilding the list from records. Start with payroll and onboarding, because they have the hardest deadlines, then work through open employee issues. Expect to find a few things that were never written down.

Choosing interim HR coverage

How you cover the gap depends on how long it will last and how much is in flight.

A manager or office lead as a stopgap

For a gap of a week or two, with nothing sensitive open, a trusted manager can keep routine work moving. Limit their role to administration. Investigations, accommodation requests, terminations and anything involving a legal claim need someone with HR experience.

An interim HR manager or embedded coverage

For a leave of several weeks or a search that will take months, bring in experienced HR help for the length of the gap. Good interim coverage does three things: keeps the deadlines, handles employee issues as they come up, and leaves better documentation than it found, so the next person starts clean.

Using the gap to rethink the role

A departure is a natural moment to ask whether the role still fits the company. Some employers find they need more senior judgment than the old role had. Others find the work is mostly operational and could be handled differently. Our comparison of fractional and outsourced HR and the signals in when to hire fractional HR can help you decide what to hire for next.

Handing off when the gap ends

Whether your HR manager returns or a new one starts, plan the handoff:

• A written list of every open item, its status and the next step
• The deadline calendar, updated
• Notes on any employee issue handled during the gap, filed in the right place
• Admin access returned or reassigned, and interim access removed

A clean handoff is what makes interim coverage worth it.

How Signent HR helps

Signent HR offers interim and embedded HR coverage as part of our HR leadership and transitions services, along with staffing decisions and transition planning. If your HR person is leaving or going on leave, schedule a discovery call. Current clients can raise coverage questions through the client portal.