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401(k) Plan Administration Best Practices Checklist

401(k) Plan Administration Best Practices Checklist

October 19, 2026

Managing a retirement plan requires ongoing attention throughout the year, not just during annual reviews or filing deadlines. From processing payroll contributions to monitoring compliance requirements and preparing for regulatory changes, plan sponsors are responsible for many important administrative tasks.

Our 401(k) Plan Administration Best Practices Checklist provides a practical framework for organizing key responsibilities by payroll cycle, month, quarter, and year. It also highlights important 2026 year-end updates that may impact plan administration, helping employers identify potential gaps before they become larger issues.

Whether you're reviewing employee eligibility, monitoring fiduciary responsibilities, or preparing for annual filings, this guide will serve as a valuable resource for maintaining an efficient retirement plan.

Larmann Financial

7424 Jager Court
Cincinnati, OH 45230

Email: team@larmannfinancial.com

Phone: 513-624-2800

Securities offered through Kestra Investment Services, LLC (Kestra IS), member FINRA/SIPC. Investment advisory services offered through Kestra Advisory Services, LLC (Kestra AS), an affiliate of Kestra IS.  Larmann Financial is not affiliated with Kestra IS or Kestra AS. Form CRS Disclosure: www.kestrafinancial.com/disclosures

This information is provided as a general guide to educate plan sponsors. It is not intended as authoritative guidance or tax/legal advice. Each plan has unique requirements, and you should consult your attorney or tax advisor for guidance on your specific situation.

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