Annual HR Compliance Calendar | Trimaren Human Capital Partners

Growing life sciences companies face a dense and often underestimated compliance calendar. Between federal reporting cycles, benefits administration windows, state-specific obligations, and the added layer of regulated-environment requirements (think cGMP training attestations, export control reviews, and IP agreements), missing a deadline isn't just an administrative inconvenience, it can create real legal and operational exposure. This calendar is designed as a working reference, not a policy document. Use it to assign owners, set internal lead times, and build your HR compliance rhythm across the year.

How to Use This Calendar

Before walking through the months, establish these foundations:

Assign an owner to each compliance area, HR, Finance, Legal, or a combination
Set internal deadlines 2–3 weeks ahead of any external filing deadline
Flag state-specific obligations separately, requirements in CA, MA, NY, NJ, and other common life sciences hubs vary significantly (Trimaren can help you map these for your specific states)
Layer in your own company milestones, headcount thresholds that trigger new obligations (e.g., FMLA at 50 employees, ACA reporting at 50+ full-time equivalents, AAP requirements at 50+ employees with federal contracts)

Q1: January – March

This is the heaviest filing quarter of the year. Build buffer time.

January

[ ] Distribute W-2s and 1099s to employees and contractors (due January 31)
[ ] File W-2s and 1099s with the SSA/IRS (due January 31)
[ ] Issue ACA Forms 1095-C (or 1095-B) to employees (deadline typically early March, confirm current IRS guidance)
[ ] Post updated federal and state labor law posters, new versions often release at year-end
[ ] Confirm minimum wage updates effective January 1 in applicable states
[ ] Review and update employee handbooks for any law changes effective in the new year
[ ] Open annual performance review cycle if calendar-year aligned
[ ] Distribute annual HIPAA privacy notices if your benefits plan requires it

February

[ ] File ACA Forms 1094-C / 1095-C with the IRS (paper filers, confirm current deadline)
[ ] Conduct annual I-9 audit, identify expired documents and re-verification needs
[ ] Review EEO-1 Component 1 filing preparation (data collection window typically opens in spring)
[ ] Confirm OSHA 300 log is complete and post Form 300A (February 1 – April 30 posting requirement)

March

[ ] File ACA forms electronically with IRS (confirm current deadline)
[ ] Begin preparing EEO-1 data if your organization has 100+ employees (or 50+ with a federal contract)
[ ] Review FMLA administration practices and confirm updated notices are in use
[ ] Audit cGMP and GxP training completion records in partnership with Quality for any annual recertification requirements
[ ] Confirm export control (EAR/ITAR) training is current for applicable roles

Q2: April – June

Compliance activity moderates slightly, use this quarter for proactive audits and mid-year planning.

April

[ ] OSHA 300A posting period ends April 30, retain log per recordkeeping requirements
[ ] Submit EEO-1 Component 1 report (deadline typically mid-May, confirm with EEOC)
[ ] Review and update job descriptions, particularly important before mid-year hiring ramps
[ ] Conduct compensation equity review if not done annually in Q1
[ ] Confirm state pay transparency compliance for any open roles (CA, CO, NY, WA, IL, and others)

May

[ ] EEO-1 filing deadline (confirm current year deadline with EEOC)
[ ] Review benefits broker relationship and begin preliminary renewal planning
[ ] Audit independent contractor classifications, life sciences companies often engage consultants and CRO/CMO contacts in ways that warrant periodic review
[ ] Confirm COBRA administration is current for any qualifying events year-to-date

June

[ ] Begin benefits renewal planning in earnest, gather utilization data, benchmark plan design
[ ] Review and renew any expiring employment agreements, offer letter templates, or IP/NDA agreements
[ ] Conduct mid-year HR policy review, flag anything requiring update before year-end
[ ] Confirm state-mandated harassment prevention training completion (CA, NY, IL, CT, ME, DE, and others have specific requirements)

Q3: July – September

Open enrollment preparation and workforce planning dominate this quarter.

July

[ ] Finalize benefits renewal decisions with broker and carriers
[ ] Prepare open enrollment communications and materials
[ ] Review 401(k) plan for compliance, confirm timely deposit of deferrals, review plan document for any required amendments
[ ] Audit Form I-9 files, address any deficiencies before year-end

August

[ ] Conduct open enrollment readiness check, systems, communications, employee education
[ ] Review WARN Act obligations if any workforce reductions are anticipated
[ ] Confirm annual cGMP, safety, and quality training schedules for Q4 (coordinate with Quality)

September

[ ] Open enrollment period (timing varies, most calendar-year plans run Oct–Nov)
[ ] Distribute Summary of Benefits and Coverage (SBC) to employees before open enrollment
[ ] Distribute Medicare Part D creditable coverage notices (due before October 15)
[ ] Conduct annual review of AAP if required (federal contractors)

Q4: October – December

Close the year cleanly and set up Q1 for success.

October

[ ] Medicare Part D notices due October 15
[ ] Open enrollment in progress, confirm employee elections are captured accurately
[ ] Begin year-end payroll audit, catch classification errors, fringe benefit reporting, imputed income items
[ ] Review and update arbitration agreements, confidentiality agreements, and IP assignment agreements if needed

November

[ ] Close open enrollment and confirm elections with carriers
[ ] Prepare for year-end W-2 adjustments, group-term life, personal use of company vehicles, HSA contributions
[ ] Confirm 401(k) contribution limits for the upcoming plan year (IRS typically announces in October/November)
[ ] Begin preparing updated labor law posters for January 1 posting

December

[ ] Finalize year-end payroll processing and any bonus or equity-related tax withholding
[ ] Confirm all annual compliance training is complete and documented
[ ] Archive HR records per your retention schedule
[ ] Conduct a year-end HR audit: headcount, open roles, classification review, policy gaps
[ ] Brief leadership on any employment law changes effective January 1

Ongoing Monthly Activities

These items belong on every month's checklist:

[ ] Process COBRA qualifying event notices within required timeframes
[ ] Confirm timely 401(k) deferral deposits (generally within 7 business days for small plans)
[ ] Review any new hires for I-9 completion within 3 business days
[ ] Track and respond to any state or local compliance changes in your operating jurisdictions
[ ] Document and retain records of any employee relations matters, accommodations, or leave activity

A Note on State and Local Complexity

Life sciences companies frequently operate across multiple states, or hire remote employees in states where they have no physical presence. Each jurisdiction can carry its own poster requirements, leave laws, pay transparency rules, and training mandates. This calendar reflects federal obligations as a baseline. Trimaren can help you map your specific state and local compliance obligations, particularly if you operate in California, New York, Massachusetts, or New Jersey.

How Trimaren Can Help

Trimaren Human Capital Partners works with growing life sciences organizations to build and maintain the HR infrastructure that keeps compliance manageable and leadership focused on the mission. Whether you need a full compliance calendar built out for your specific workforce, support navigating a particular filing season, or an experienced HR leader embedded on a fractional or project basis, Trimaren brings the practitioner expertise to get it done right. Reach out to learn how we can tailor this framework for your organization's stage, structure, and jurisdictions.