Independent ERISA fiduciary since 19973(16) & 402(a) — we sign and file your Form 5500No products sold, no commissionsTalk to us: (361) 271-1211

401(k) Administration in Texas

Most Texas employers do not 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.

We have administered Texas retirement plans from Corpus Christi since 1997 — for employers in the Coastal Bend, South Central Texas, the Gulf Coast, Dallas–Fort Worth, Central Texas and the Rio Grande Valley. We sell no investment products and take no commissions, so we work alongside whichever recordkeeper, payroll provider and advisor you already use.

Talk to the fiduciary who signs the filing
Mon–Fri, 8:00 a.m.–5:00 p.m. Central · no products sold, no commissions

Texas cities we serve

Corpus Christi401(k) plan administration for employers in Corpus Christi and the Coastal Bend.
San Antonio401(k) plan administration for employers in San Antonio and South Central Texas.
Houston401(k) plan administration for employers in Houston and the Gulf Coast.
Dallas401(k) plan administration for employers in Dallas and Dallas–Fort Worth.
Austin401(k) plan administration for employers in Austin and Central Texas.
McAllen401(k) plan administration for employers in McAllen and the Rio Grande Valley.

What we take over for a Texas plan sponsor

ResponsibilityTypical arrangementWith Admin316
Named plan administrator in the documentThe business owner or HR directorAdmin316, appointed in writing
Form 5500 signature and filingOwner signs whatever the TPA preparesWe prepare, sign and file it
Participant notices and disclosuresScattered between HR, payroll and recordkeeperTracked and delivered on the statutory calendar
Eligibility, entry dates, vestingSpreadsheet maintained by whoever is availableMonitored against the plan document each payroll
Compliance testing and correctionsDiscovered late, corrected under pressureRun early, corrected through EPCRS/VFCP when needed
Distributions, loans, QDROs, force-outsOwner approves and hopes it matches the documentReviewed and approved as fiduciary

Where Texas plans actually go wrong

Fast-growing metros cross the audit threshold without noticing

Austin, Dallas–Fort Worth and Houston plans add headcount faster than anyone re-reads the plan document. Crossing 100 eligible participants triggers an independent audit and a far less forgiving Form 5500. We watch the count and prepare for the audit before it becomes a scramble.

Hourly and seasonal workforces break eligibility tracking

Coastal Bend, Rio Grande Valley and Gulf Coast employers run crews that churn. Long-term part-time rules and entry dates are where missed deferral opportunities are created, and those get corrected with employer money, not employee money.

Multiple entities raise controlled-group questions nobody answers

Texas owners commonly hold several LLCs, a management company and a real-estate entity. Controlled-group and affiliated-service-group rules decide who must be covered by the plan at all. A recordkeeper will not evaluate that for you.

Energy, construction and prevailing-wage work complicate compensation

Per-diems, bonuses, union and non-union crews and prevailing-wage jobs mean payroll’s definition of compensation rarely matches the plan document’s. Testing is where that mismatch surfaces.

The three findings that generate the most sponsor pain in Texas plans: 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

1. Discovery call (20 minutes)Plan document, participant count, payroll cadence, recordkeeper, and any known issue you are worried about.
2. Plan reviewWe read the actual document and the last two Form 5500 filings, and tell you plainly what is out of alignment.
3. AppointmentWe are named as 3(16) administrator and 402(a) named fiduciary by board resolution and plan amendment.
4. Ongoing administrationPayroll-cycle monitoring, notices, testing, filings, and one point of contact who answers.

Questions Texas plan sponsors ask

Is a 3(16) administrator the same as a TPA?
No. A third-party administrator performs the work but the employer stays legally responsible as plan administrator. A true 3(16) administrator is appointed in the plan document and accepts that fiduciary responsibility in writing. Admin316 does both roles: TPA work plus signed 3(16) and 402(a) appointment.
Do we have to change our recordkeeper or advisor?
No. We sell no investment products and take no commissions, so we work alongside whichever recordkeeper, payroll provider and advisor you already use.
Who signs the Form 5500?
We do. As your appointed 3(16) administrator, Admin316 signs and files the Form 5500 and delivers the participant notices on the statutory calendar.
What if we already have a compliance problem?
Bring it. Late deferral deposits, missed deferral opportunities, blown testing and unfiled 5500s are all correctable through the IRS and DOL programs (EPCRS, VFCP, DFVCP). Voluntary correction is dramatically cheaper than being found.
How much does it cost?
It depends on participant count, payroll frequency and plan design, so we quote after a short discovery call rather than posting a number that will not match your plan.
Do you only serve Texas employers?
No. Admin316 serves plan sponsors nationwide from Corpus Christi, Texas. Texas is simply where our concentration is deepest, and in-state travel is routine for us.
Is there a state-level 401(k) filing in Texas?
No. Texas has no state income tax and no separate state retirement-plan filing, so your obligations are federal: the Form 5500 series, participant notices, and the ERISA fiduciary duties that attach to whoever is named plan administrator in the document.
Admin316 Retirement Administration
4639 Corona Dr #26, Corpus Christi, TX 78411 · serving employers across Texas
Hours: Monday–Friday, 8:00 a.m.–5:00 p.m. Central
Phone: (361) 271-1211 · Independent ERISA fiduciary since 1997
Talk to the fiduciary who signs the filing
Mon–Fri, 8:00 a.m.–5:00 p.m. Central · no products sold, no commissions
Not sure if you’re carrying fiduciary risk you don’t need to?Call (361) 271-1211Book a 15-min 3(16) fit check

Step 1 of 2 — Your name and phone

Tell us who to prepare the review for, then we’ll grab a few plan details.

For Plan Sponsors, CEOs, Business Owners & HR Professionals. Company retirement plans only.