401(k) Administration in Phoenix, AZ
Phoenix employers do not usually have a 401(k) problem — they have an unassigned-responsibility problem. The recordkeeper holds the money, the advisor picks the funds, and the plan document quietly names the business owner as plan administrator. That signature is where the personal liability sits. Admin316 takes it: we are appointed as your ERISA 3(16) plan administrator and 402(a) named fiduciary, we run the compliance calendar, and we sign and file the Form 5500.
Phoenix plans are frequently inherited: the broker who set it up has moved on, the recordkeeper has changed twice, and no one has read the plan document since the day it was signed.
What we take over for a Phoenix plan sponsor
| Responsibility | Typical arrangement | With Admin316 |
|---|---|---|
| Named plan administrator in the document | The business owner or HR director | Admin316, appointed in writing |
| Form 5500 signature and filing | Owner signs whatever the TPA prepares | We prepare, sign and file it |
| Participant notices and disclosures | Scattered between HR, payroll and recordkeeper | Tracked and delivered on the statutory calendar |
| Eligibility, entry dates, vesting | Spreadsheet maintained by whoever is available | Monitored against the plan document each payroll |
| Compliance testing and corrections | Discovered late, corrected under pressure | Run early, corrected through EPCRS/VFCP when needed |
| Distributions, loans, QDROs, force-outs | Owner approves and hopes it matches the document | Reviewed and approved as fiduciary |
Why Phoenix employers call us
Construction and specialty trades
Year-round building with heavy rehiring makes break-in-service and entry-date tracking the largest source of missed deferral opportunities.
Semiconductor, aerospace and advanced manufacturing
Rapid expansion, acquisitions and multi-entity structures create controlled-group and audit-threshold exposure.
Healthcare, dental and veterinary groups
Owner-heavy, multi-location practices live on top-heavy and coverage testing.
Call centers, hospitality and seasonal services
High turnover with many part-time staff makes long-term part-time tracking and force-out processing the recurring work.
The three findings that generate the most sponsor pain, in every state: late deferral deposits (the DOL treats employee money not deposited as soon as administratively feasible as a prohibited transaction), missed deferral opportunities for newly eligible or long-term part-time employees, and Form 5500 filings that do not reconcile to the trust statement. All three are correctable — and all three are cheaper to fix voluntarily than to be found with.
How onboarding works
Questions Phoenix plan sponsors ask
4639 Corona Dr #26, Corpus Christi, TX 78411 · serving Phoenix and the Valley
Hours: Monday–Friday, 8:00 a.m.–5:00 p.m. Central
Phone: (361) 271-1211 · Independent ERISA fiduciary since 1997
Also serving Scottsdale, Mesa, Tempe, Chandler, Gilbert, Glendale, Peoria and Maricopa County.
