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The Ultimate HR Benefits Compliance Calendar (ACA, COBRA, ERISA Deadlines)

Why a Benefits Compliance Calendar Matters


Benefits compliance is one of the most overlooked responsibilities for HR teams—especially at companies under 200 employees. Missing a deadline can lead to significant penalties, employee lawsuits, and IRS fines.


A clear benefits compliance calendar helps HR teams stay organized, reduce risk, and avoid costly mistakes. This guide breaks down the key monthly, quarterly, and annual benefits compliance deadlines every employer should track.


Monthly Benefits Compliance Deadlines


COBRA Premium Payments


  • Employers or plan administrators must track COBRA premium payments monthly.

  • Grace periods typically last 30 days, but coverage can be terminated for non-payment.


Benefits Deductions & Payroll Reconciliation


  • Ensure employee benefits deductions match carrier invoices.

  • Correct discrepancies promptly to avoid coverage gaps.


Quarterly Benefits Compliance Deadlines


ACA Employer Shared Responsibility Tracking


  • Track full-time employee hours to determine Applicable Large Employer (ALE) status (50+ full-time equivalents).

  • Monitor affordability and minimum value compliance for group health plans.


Benefits Plan Review & Compliance Check


  • Review plan documents, Summary Plan Descriptions (SPDs), and employee communications for accuracy.

  • Confirm that employee contributions align with plan documents.


Annual Benefits Compliance Deadlines


IRS Forms 1094-C and 1095-C (ACA Reporting)


  • Due to employees by January 31 each year.

  • Filed with the IRS by late February (paper) or late March (electronic).


Summary of Benefits and Coverage (SBC) Updates


  • Provide updated SBCs during open enrollment or when plans change.


Form 5500 (ERISA Reporting)


  • Due by the last day of the 7th month after the plan year ends (with extensions available).


Nondiscrimination Testing


  • Required for certain self-funded plans and benefits programs.


COBRA General Notice Distribution


  • Must be provided to new hires and covered spouses within 90 days of coverage start.


Penalties for Missing Benefits Compliance Deadlines


Missing benefits compliance requirements can result in:


  • IRS penalties for ACA reporting errors

  • Department of Labor fines for ERISA violations

  • COBRA penalties for late or missing notices

  • Employee lawsuits and class-action claims


Penalties can range from hundreds to thousands of dollars per employee.


Automation Tools That Simplify Benefits Compliance


Benefits Administration Platforms


  • Automate enrollments and life event changes

  • Generate compliance reports and documentation

  • Integrate with payroll and HRIS systems


Compliance Tracking Software


  • Track ACA eligibility and affordability

  • Store plan documents and disclosures

  • Send automated reminders for deadlines


Outsourcing Benefits Compliance Tasks


Many companies under 200 employees outsource benefits compliance tasks to reduce risk and administrative burden.


Common outsourced tasks include:


  • ACA reporting and tracking

  • COBRA administration

  • ERISA documentation and Form 5500 preparation

  • Open enrollment compliance support


Outsourcing benefits compliance allows HR teams to focus on people strategy while experts handle regulatory requirements.


Staying compliant doesn’t have to be overwhelming.


Service 1st Benefits helps companies with 2–200 employees simplify benefits compliance using technology and white-glove support.


 
 
 

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At Service 1st Benefits, our mission is to simplify employee benefits for businesses by delivering exceptional customer service and hassle-free solutions. We are dedicated to making the entire benefits experience seamless for both employers and employees, reducing stress and relieving the administrative burden for HR teams and business owners. With a focus on clarity, support, and efficiency, we empower businesses to provide great benefits without the complexity.

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