The Q4 benefits compliance calendar, deadline by deadline
A small-business owner's Q4 benefits compliance calendar covering the October 2 ICHRA notice, the December 31 CMS gag clause attestation, and a checklist.
If you run a small business with employees, Q4 may include federal and state benefits deadlines tied to your health plan, your HRA, Medicare Part D notices, and a CMS gag clause attestation. Missing one can trigger excise taxes, DOL penalties, or exposure in a plan-administration lawsuit.
The rundown below follows the Q4 2026 reminder alert published by Lockton's ERISA compliance team, as reported by Insurance Business America on September 11, 2026. Treat it as a planning checklist, not legal advice. Confirm specifics with your broker, TPA, or ERISA counsel.
Why does Q4 benefits compliance matter for small employers?
Some federal benefits notice and filing rules can apply to small employers that sponsor a group health plan or HRA, but the exact duties depend on your plan type, funding arrangement, headcount, and jurisdiction. Small employers are not automatically exempt from benefits notice and filing duties, so confirm which ERISA, ACA, HIPAA, and CAA requirements apply to your specific plan. If you sponsor a group health plan or a health reimbursement arrangement (HRA), you own the compliance obligation, even when a payroll provider or third-party administrator (TPA) handles the paperwork.
Novo does not provide benefits administration, but you can plan for compliance costs the same way you plan for payroll, taxes, and vendor bills.
What benefits compliance deadlines are due in early October?
Insurance Business America reported that employers offering a Qualifying Small Employer HRA (QSEHRA) or an Individual Coverage HRA (ICHRA) for the 2027 plan year must distribute the required participant notice by October 2, 2026, which is 90 days before the January 1 plan year start.
The ICHRA notice has to explain how the arrangement works and how ICHRA coverage affects an employee's ability to claim a premium tax credit on the individual market. It goes to every eligible employee, not only those who enroll. Track distribution the same way you track W-2 delivery.
What the ICHRA notice must cover
- A description of the ICHRA terms, including the maximum dollar amount available.
- The date coverage begins.
- How the ICHRA interacts with Marketplace premium tax credits.
- Contact information for questions.
- A statement on the effect of accepting the HRA on subsidy eligibility.
If you adopted an ICHRA mid-year or are switching from a group plan for 2027, this notice is the trigger event employees rely on to shop the Marketplace during open enrollment.
What is due on October 15?
Employers must distribute Medicare Part D creditable coverage notices to Medicare-eligible individuals enrolled in a group health plan by October 15. Most employers fold this into the open enrollment packet. CMS treats packet distribution as satisfying the requirement for the following 12 months, as long as prescription drug coverage does not materially change.
Form 5500 extended filings are also due October 15 for calendar-year ERISA plans that filed Form 5558 to get the 2.5-month extension past the July 31 base deadline. Some eligible small plans use Form 5500-SF, while certain small welfare plans may be exempt; ask your TPA or benefits counsel which filing rule applies to your plan.
What must be in your open enrollment packet?
Open enrollment materials carry required contents beyond the Summary of Benefits and Coverage (SBC). The SBC must go out on the first day of open enrollment when employees make affirmative elections. The 30-day advance notice rule only applies in automatic re-enrollment scenarios.
Include in the same packet:
- HIPAA special enrollment notice: Annual distribution to all eligible employees.
- HIPAA privacy notice: Required for self-insured plans, on a three-year reminder cycle.
- Michelle's Law notice: For plans covering full-time students beyond age 26 in specific medical-leave situations.
- Wellness program alternative-standard notice: Required when your wellness program has a health-contingent standard subject to ACA rules.
- CHIP notice: Annual notice using the DOL model, with a refreshed template issued ahead of open enrollment.
- Women's Health and Cancer Rights Act (WHCRA) notice: Enrollment-time and annual distribution.
Gaps in any of these create exposure during a DOL audit and in ERISA litigation touching plan administration.
What is the December 31 attestation most employers overlook?
One year-end filing deserves a separate owner: the annual Gag Clause Prohibition Compliance Attestation (GCPCA), due to CMS by December 31, 2026.
Under CAA 2021 transparency provisions, group health plans and issuers cannot contract with providers, networks, TPAs, or other service providers in ways that restrict the plan from sharing provider-specific cost or quality data, or from accessing de-identified claims data. The annual attestation confirms the plan meets that standard.
The first filing covered December 27, 2020 through the attestation date and was due December 31, 2023. Each subsequent filing covers the period since the most recent attestation and gets submitted through the CMS HIOS portal. Self-insured plans can authorize a TPA to file, but the legal obligation stays with the plan sponsor if the TPA does not act.
Two more December 31 items
- WHCRA annual notice: Distributed to every employee, regardless of eligibility or enrollment.
- Section 1557 nondiscrimination notice: Required for entities covered by Section 1557 of the ACA, including employers receiving Medicare Part D retiree drug subsidies for post-65 retiree drug coverage.
What state and local Q4 deadlines apply?
Multi-state employers carry an additional Q4 layer. The state and local dates below are drawn from the Lockton Q4 2026 ERISA compliance alert as reported by Insurance Business America. Confirm each with the relevant agency or your broker before filing.
| Jurisdiction | Obligation | Deadline |
|---|---|---|
| Washington | WA Cares Q3 payroll withholding report and remittance | October 31 |
| San Francisco | Health Care Security Ordinance Q3 shortfall contributions | October 30 |
| Massachusetts | Managed Care Organization Payor Assessment | Oct 1, Nov 2, Dec 1 |
| Massachusetts | HIRD reporting (6+ employees on any MA wage report in prior 12 months) | Nov 15 to Dec 15 |
| NM, RI, VT, AK, ME, NH, WA | Quarterly vaccine assessment program filings | October or November |
Ask your PEO or payroll provider to confirm in writing which filings they handle and which filings remain your responsibility.
What Q4 benefits compliance checklist can small businesses copy?
Paste this into your project tool or share it with your bookkeeper.
Q4 BENEFITS COMPLIANCE CHECKLIST — [COMPANY NAME], PLAN YEAR [YYYY]
OCTOBER
[ ] Oct 2: ICHRA/QSEHRA notice distributed to all eligible employees (for Jan 1 plan year)
[ ] Oct 15: Medicare Part D creditable coverage notice distributed
[ ] Oct 15: Form 5500 filed (if 2.5-month extension taken)
[ ] Oct 30: SF HCSO Q3 shortfall contribution (if applicable)
[ ] Oct 31: WA Cares Q3 report + remittance (if applicable)
[ ] Oct/Nov: State vaccine assessment filings (NM, RI, VT, AK, ME, NH, WA)
OPEN ENROLLMENT PACKET
[ ] SBC distributed on day 1 of open enrollment
[ ] HIPAA special enrollment notice
[ ] HIPAA privacy notice (self-insured plans)
[ ] Michelle's Law notice (if applicable)
[ ] Wellness alternative-standard notice (if applicable)
[ ] CHIP notice (DOL model)
[ ] WHCRA notice
NOVEMBER
[ ] Nov 2: MA MCO Payor Assessment
[ ] Nov 15: MA HIRD reporting window opens
DECEMBER
[ ] Dec 1: MA MCO Payor Assessment
[ ] Dec 15: MA HIRD reporting window closes
[ ] Dec 31: Gag Clause Prohibition Compliance Attestation filed through CMS HIOS portal
[ ] Dec 31: WHCRA annual notice
[ ] Dec 31: Section 1557 nondiscrimination notice (if applicable)
OWNER: __________ REVIEWER: __________ COMPLETED: __________Paste the block above into ChatGPT or Claude with a prompt like "Turn this Q4 benefits compliance checklist into a Google Sheet with columns for deadline, owner, status, and notes, and add conditional formatting that flags any row past due against today's date." The tool can draft a spreadsheet outline you can review before adding it to Google Sheets or Excel.
How should you budget for the compliance workload?
Notices, filings, and attestations carry direct costs for small businesses. Broker fees for ICHRA administration, TPA fees for Form 5500 preparation, and legal review of your gag clause attestation all hit Q4. If you pay these from your Novo account, tag them in your bookkeeping as "benefits compliance" so you can see the annual total when you plan next year's budget.
A few practical moves for small teams:
- Set the calendar in September, not October. Every deadline above is knowable a year in advance. Put them in your shared calendar with 14-day and 3-day reminders.
- Assign one owner per filing. ERISA obligations attach to the plan sponsor, meaning you, not to your broker. Have a named person confirm each filing hit.
- Keep proof of distribution. For every notice, save the email log, the enrollment portal screenshot, or the mailing receipt. That is what a DOL auditor will ask for.
- Reconcile against your account activity. State assessments (WA Cares, MA MCO, SF HCSO) show up as ACH debits. Match them to the filing so you know each payment cleared.
What happens if you miss a deadline?
Penalties vary by rule, but the pattern is consistent: the IRS, DOL, and CMS all have authority to assess amounts that scale with plan size and duration of the failure. Federal civil penalties are periodically adjusted and published by the enforcing agencies. Confirm the current amounts with your broker or ERISA counsel.
Penalty amounts vary by requirement and are adjusted periodically. Confirm the current amounts and any voluntary correction options with your broker or ERISA counsel. Common areas of exposure include Form 5500 late filings (with the DOL's Delinquent Filer Voluntary Compliance Program available for self-correction), SBC failures, CHIP notice failures, and the gag clause attestation, where CMS has stated the filing is required and enforcement authority under CAA 2021 sits with the Departments of Labor, HHS, and Treasury.
Self-correction is almost always cheaper than waiting for an audit. If you find a gap, talk to your broker or ERISA counsel about the applicable voluntary correction program.
What should small businesses do this week?
- Pull your plan documents and confirm your plan year, since most of these deadlines assume a January 1 start.
- Ask your broker or TPA for a written list of which filings they handle and which you own.
- Add every applicable date above to a shared calendar with reminders.
- Draft the ICHRA or QSEHRA notice now if you offer one, because October 2 is the first hard date.
- Confirm someone owns the December 31 gag clause attestation on the CMS HIOS portal.
The Q4 calendar is dense, but each item is a discrete task with a specific deadline. Work the list.
Disclosures
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