4th Quarter Compliance Reminders
August 28, 2024
As we approach the end of 2024, there are plenty of important deadlines to be mindful of. Staying on top of these deadlines contributes to the ongoing compliance of your plan and provides a seamless experience for your employees.
New SECURE Act 2.0 | Long-term part-time employees
Starting in the 2025 plan year, the SECURE Act 2.0 lets part-time employees who've worked at least 500 hours for two consecutive years join the company's 401(k) plan. Here's a quick guide for employers:
- January 1, 2025: Part-time employees who work 500 hours/year for 2 consecutive years are eligible to participate in the company’s 401(k) plan.
- Check your records: Look at your employee data to see who'll be eligible.
- Talk to them: Once you know who's eligible, tell them about their new 401(k) options.
Doing this early helps get your part-time employees smoothly onboard with their new benefits.
Q4 Compliance Highlights*
October 15
- If on extension, filing deadline for the Form 5500
- If on extension, filing deadline for individual and/or corporate tax returns and final contribution deadline for deductibility
- Adopting a retroactive amendment to correct minimum coverage or nondiscrimination requirements (IRC Sections 410(b) & 401(a)(4))
December 1
- Sending annual 401(k) and safe harbor match notice*
- Sending annual Qualified Default Investment Alternative (QDIA) notice*
- Sending annual automatic contribution arrangement notice (ACA)*
- It's important to send these notices at least 30 days (and not more than 90 days) before the beginning of each plan year.
December 15
- If on extension, deadline for distributing SAR to participants*
December 31
- Processing corrective distributions for failed ADP/ACP test to avoid the 10% excise tax
- Correcting a failed ADP/ACP test with qualified nonelective contributions (QNECs)
- Converting existing 401(k) plan to safe harbor non-elective design for current plan year
- Amendment to remove or convert to safe harbor status for next plan year
- Amending plan for discretionary changes implemented during plan year (certain exceptions apply)
- RMDs due under IRC Section 401(a)(9) to avoid penalties

Retirement plan catch-up contributions allow “older” workers—typically those age 50 and over— to set aside additional funds in their retirement accounts beyond standard annual limits. These extra contributions are an important planning tool for those nearing retirement who want to make up for earlier gaps in saving.

Retirement plans can be confusing. Between complex rules, industry jargon, and competing providers, it’s easy for employers to fall into patterns based on assumptions or half-truths. That’s why we created this series: to cut through the noise and help employers make confident, informed decisions. In this third installment, we’re addressing two persistent myths that often lead employers down the wrong path: the idea that payroll providers are the best place to get your plan, and the belief that robo-firms offer a hassle-free alternative. Spoiler: neither is as simple (nor as beneficial) as they seem.