2026 Solo 401(k) contribution limits have been updated — Download the guide →
About the Practice

401(k) Plan Administration Expertise Since 2003

Mrs401k.com is a specialized retirement plan administration practice dedicated to helping self-employed professionals and businesses of all sizes establish and maintain IRS-compliant 401(k) plans — with the legal precision and personalized service that qualified retirement plans require. There is no setup fee and no termination fee on any of our plans.

CG
Craig Lewis Gillooly, Esq., J.D.
Principal & Legal Counsel
Mrs401k.com · 401kAdministrators.com
Address 2772 Roosevelt St. #947
Carlsbad, CA 92008-1615
Toll Free 888 NO WORRIES · (888) 669-6774 (800) 474-3826
Twitter @Mrs401k_com
Our Principal

Meet Craig Lewis Gillooly

Craig Lewis Gillooly is the principal of Mrs401k.com and 401kAdministrators.com, bringing decades of specialized experience in qualified retirement plan documentation and administration to clients ranging from self-employed individuals and sole proprietors to small and mid-size businesses with employees — across the United States.

As an attorney licensed to practice in good standing in California and New York, Craig combines deep legal knowledge with hands-on plan administration expertise, ensuring every 401(k) plan — whether a Solo 401(k) for an owner-only business or a full ERISA-governed plan for an employer with employees — is IRS-compliant, properly documented, and structured to maximize retirement savings and tax advantages for each client's unique situation.

Craig and 401kAdministrators.com hold the historic distinction of being the very first company to register as a Pooled Employer Plan (PEP) provider with the United States Department of Labor, following the enactment of the SECURE Act of 2019. A Pooled Employer Plan allows multiple unrelated employers to participate in a single ERISA-governed 401(k) plan, dramatically reducing administrative complexity and cost. This milestone was featured in 401k Specialist Magazine.

Craig is also a recognized authority on California's CalSavers program and its implications for self-employed workers and small business owners, and regularly advises clients on how a properly established 401(k) plan satisfies CalSavers exemption requirements.

All questions, requests for support, and all other inquiries may, at our option, be answered by email or return phone call.

In the News

Featured Coverage & Resources

Press Coverage

First Company to Register as a Pooled Employer Plan Provider with the U.S. DOL

401kAdministrators.com holds the historic distinction of being the very first company registered as a Pooled Employer Plan (PEP) provider with the United States Department of Labor following the SECURE Act of 2019 — making enterprise-grade retirement benefits accessible to employers of any size at zero employer cost. Featured in 401k Specialist Magazine.

Read the article →
CalSavers Compliance

Solo 401(k) as a CalSavers Exemption

California's CalSavers program requires employers without a qualified retirement plan to enroll employees in the state-facilitated IRA. A properly established Solo 401(k) can satisfy CalSavers exemption requirements while delivering significantly greater retirement savings potential.

Contact us to learn more →
Social & Updates

Follow Us on Twitter / X

Stay current with Solo 401(k) regulatory updates, IRS contribution limit announcements, compliance reminders, and retirement planning commentary from Craig directly.

@Mrs401k_com →

IRS Circular 230 Disclosure

Any tax discussion contained in this communication was not intended or written to be used, and cannot be used by the recipient or any other person, for the purpose of avoiding any Internal Revenue Code penalties that may be imposed on such person. Any tax discussion contained in this communication was written to support the promotion or marketing of the transactions or matter discussed herein. Any taxpayer should seek advice based on the taxpayer's particular circumstances from an independent tax advisor. This information is provided as general guidance and is not intended to be legal or tax advice.