Most small business owners don’t set out to become retirement plan administrators. You want to offer a 401(k) because it helps you compete for talent, retain good people, and maybe put something away for yourself. What you don’t want is the compliance headache, the fiduciary liability, or the TPA invoices that come with sponsoring your own plan.

G&A Partners’ PEO model offers one path around that problem. As a Professional Employer Organization, G&A can bring your employees into their master 401(k) plan, handle the administrative heavy lifting, and shift a meaningful chunk of ERISA fiduciary responsibility off your plate. That’s genuinely useful for a lot of small businesses.

But it’s not a free lunch, and it’s not right for everyone. The retirement benefit comes bundled with a full PEO relationship, which means you’re evaluating a lot more than just a 401(k). The plan terms — vesting schedules, investment options, match flexibility, per-participant fees — are things you’ll need to verify directly with G&A, because they can change and vary by contract.

This article is a clear-eyed look at how G&A’s retirement offering actually works, what it costs in context, where the real risks sit, and what questions you should be asking before you sign anything. It’s not a sales pitch for G&A, and it’s not a generic 401(k) explainer. Think of it as prep work for a smarter conversation.

The Co-Employment Structure and What It Means for Your Retirement Plan

Under G&A Partners’ PEO model, your employees become co-employed. G&A is the employer of record for many HR and benefits purposes, while you retain control of day-to-day operations, job functions, and compensation decisions. That co-employment relationship is the mechanism that makes the retirement benefit work the way it does.

Because G&A acts as the employer of record, your employees gain access to G&A’s master 401(k) plan rather than a plan your business sponsors individually. This is a meaningful structural distinction, not just a paperwork technicality. When you sponsor your own 401(k), your company is the plan sponsor under ERISA. That carries legal and fiduciary obligations. Under the PEO model, G&A holds the plan sponsor role, which transfers a significant portion of those obligations to them.

In practice, this means G&A is responsible for maintaining the plan in compliance with ERISA, managing the administrative infrastructure, conducting required compliance testing, and filing Form 5500 with the IRS annually. For a small business owner who doesn’t have an HR department or a benefits attorney on retainer, that’s a real operational relief.

What does enrollment look like practically? When a new employee joins your company under the G&A co-employment arrangement, their eligibility for the retirement plan is governed by the master plan’s terms, not terms you’ve set independently. Enrollment timelines, waiting periods, and eligibility rules are standardized across G&A’s client base. That’s efficient, but it also means less flexibility than you’d have with your own plan.

One thing worth understanding clearly: the plan is G&A’s, not yours. Your employees participate in it through their co-employment relationship. If that relationship ends, so does their participation in that specific plan. That has real implications we’ll cover later in this article.

The pooled nature of G&A’s plan is also worth noting here. Because the master plan covers thousands of employees across many client companies, it operates at a scale that most standalone small business plans can’t match. That scale can translate to access to institutional-grade investment funds and potentially lower expense ratios than you’d negotiate on your own. Whether G&A’s specific fund lineup delivers on that depends on the actual options available, which you should confirm directly. For a useful comparison of how another PEO structures its master 401(k) plan for small businesses, the Justworks model offers a helpful reference point.

Inside the Plan: Features, Administration Split, and What to Verify

PEO retirement plans typically include standard 401(k) features: employee pre-tax and sometimes Roth contribution options, a defined investment fund lineup, employer match capability, and vesting schedules. G&A’s plan follows this general structure, but the specifics matter and they’re not static.

On the employer match side, most PEOs allow client businesses to set their own match rate within the parameters of the master plan. You’re not locked into a fixed match across all G&A clients. This is important because the match is a direct compensation cost you fund — G&A doesn’t subsidize it. You decide whether to offer a match, at what rate, and whether it’s discretionary or guaranteed. That decision is yours regardless of who administers the plan.

What G&A handles operationally is substantial. Plan enrollment, participant communications, ADP/ACP nondiscrimination testing, top-heavy testing, Form 5500 preparation and filing, and general compliance monitoring are typically managed by the PEO. For a business that would otherwise need to hire a TPA and coordinate with a plan recordkeeper, this bundled administration is one of the clearest value propositions in the PEO model.

What you’re still responsible for: deciding on and funding your employer contributions accurately and on time, ensuring employee eligibility data submitted to G&A is correct, and making the strategic decisions about match structure. If you send incorrect payroll data or miss a contribution funding deadline, that’s on your side of the fence.

Now, what might not be included or could cost extra? This is where you need to ask specific questions rather than assume:

Roth 401(k) contributions: Not all PEO master plans include a Roth option. If after-tax contributions matter to your employees or to you personally, confirm whether this feature is available.

Profit-sharing provisions: Some businesses want to add a profit-sharing component to their retirement program. Master plans vary on whether this is supported and how it’s structured.

Financial advisory services for employees: Plan administration is not the same as investment advice. If your employees want personalized guidance on how to allocate their contributions, that typically isn’t included in standard PEO retirement administration.

Custom investment menu design: You’re participating in a master plan with a standardized fund lineup. You don’t get to curate the investment options the way you might with your own plan. That lineup may be excellent or it may have gaps — verify the actual funds and their expense ratios before assuming it’s competitive. Vensure’s approach to PEO retirement plan fund selection illustrates how much these lineups can vary between providers.

The honest framing here is that G&A handles the compliance and administrative infrastructure well, but the plan design flexibility is more limited than a standalone arrangement. For most small businesses, that tradeoff is entirely worth it. For businesses with specific plan design requirements, it may not be.

The Real Cost Picture: What You’re Actually Paying For

Let’s be direct: retirement plan access through a PEO isn’t free. It’s bundled into your overall PEO fee structure, which typically runs on a per-employee-per-month basis or as a percentage of payroll. Whether the retirement benefit is explicitly line-itemed or folded into a base fee depends on how G&A structures your contract — and that’s a question worth asking clearly during the proposal process.

To understand whether the PEO model saves you money on retirement benefits, you need to compare it against the real cost of running a standalone plan. That comparison typically includes setup fees, ongoing TPA fees, recordkeeping fees, investment management costs, and potentially audit requirements once your plan crosses certain participant thresholds under IRS rules. These costs vary widely depending on your plan size and the vendors you’d use, but they’re real and they add up.

The PEO model can reduce or eliminate several of those line items. You’re not paying a separate TPA. You’re not managing a separate recordkeeper relationship. You’re not filing your own Form 5500. Those savings are genuine.

The complication is that you can’t evaluate those savings in isolation. The PEO fee covers payroll processing, HR support, workers’ comp, compliance management, and benefits access all together. You can’t unbundle the 401(k) cost from the rest of the PEO cost and compare it directly to a standalone plan fee. You’re evaluating the full package.

This is where a lot of businesses make an analytical mistake. They see the retirement benefit as a “bonus” that comes with the PEO, when really it’s one component of a bundled cost they need to evaluate holistically. If your primary motivation for considering G&A is the 401(k), you should be comparing the total PEO cost against the combined cost of running payroll, HR, compliance, and a standalone retirement plan separately. A thorough PEO provider review that breaks down bundled fee structures can help you understand what a fair all-in cost actually looks like.

The employer match is the largest variable cost in this entire picture. Whether you’re with G&A or running your own plan, the match is a direct payroll expense. A 3% match on a $60,000 salary is $1,800 per year per employee regardless of who processes the paperwork. The PEO reduces your administrative cost, not your contribution cost. Keep those two things clearly separated in your budget analysis.

One more cost factor worth flagging: the fund expense ratios within the plan. Even if G&A’s plan administration is efficient, if the investment fund lineup carries high expense ratios, your employees pay that cost through reduced returns over time. Ask for the fund lineup and the associated expense ratios before you assume the plan is competitively priced end-to-end.

Fiduciary Liability: What Actually Shifts When G&A Sponsors the Plan

ERISA fiduciary liability is one of those topics that sounds abstract until something goes wrong. Here’s the plain-language version: when you sponsor your own 401(k) plan, you are personally and organizationally responsible for acting in the best interests of plan participants. That includes selecting and monitoring prudent investment options, ensuring the plan is administered correctly, and making sure fees are reasonable. Failure to meet those standards can result in personal liability, not just business liability.

For most small business owners, that’s a significant and often underappreciated exposure. You didn’t go into business to become an ERISA fiduciary. But if you sponsor a plan, that’s what you are.

Under G&A’s PEO model, the plan sponsor role shifts to G&A. They carry the primary fiduciary responsibility for the master plan’s investment lineup, administrative compliance, and participant communications. That’s a genuine and meaningful transfer of legal exposure. It’s one of the more underrated advantages of the PEO model for small businesses.

That said, you don’t walk away from all responsibility. A few things remain clearly on your side:

Contribution funding accuracy and timing: You’re responsible for ensuring that employee and employer contributions are funded correctly and on schedule. Late or inaccurate contributions are an ERISA violation regardless of who sponsors the plan.

Employee eligibility data: If you submit incorrect information about employee eligibility or compensation, the downstream compliance problems are yours to resolve.

The match decision itself: Choosing whether to offer a match and at what rate is a business decision you make. G&A doesn’t make that call for you.

On compliance testing: small standalone plans, particularly those in businesses where ownership or highly compensated employees participate at higher rates than rank-and-file staff, frequently run into ADP/ACP nondiscrimination test failures or top-heavy plan issues. These failures trigger corrective distributions and can be administratively painful. A larger pooled plan with diverse participants across many companies can reduce this risk, because the testing is done across a much broader population. This is a real potential advantage, but it should be confirmed with G&A directly — don’t assume it applies automatically to your situation. Understanding how a PEO manages employer risk and compliance obligations more broadly can also sharpen your evaluation framework.

Honest Fit Assessment: Where This Works and Where It Doesn’t

G&A’s retirement offering is a strong fit for a specific type of business. It’s not universally the right answer, and knowing which category you fall into will save you time and money.

Where it tends to work well: If you’re a small business with no existing 401(k) and you want to start offering retirement benefits competitively without building a plan from scratch, the PEO model is genuinely efficient. The administrative infrastructure is already in place. You’re not hiring a TPA or negotiating with a recordkeeper. You’re just turning on a benefit that can start attracting and retaining employees immediately.

It also works well for owners who want to reduce their personal fiduciary exposure. If the idea of being personally liable for investment selection and plan administration keeps you up at night, transferring that responsibility to G&A is a legitimate reason to consider the PEO path.

Where it’s a weaker fit: If you already have a well-structured standalone plan with low fees, a fund lineup you’re happy with, and a TPA relationship that’s running smoothly, the case for switching is weaker. You’d be trading a known, working arrangement for an unknown one, and potentially paying more in total PEO fees than you save on plan administration.

Businesses with customized plan designs — profit-sharing structures, defined benefit combinations, or complex vesting arrangements — may find the master plan too rigid. PEO plans are standardized by design. That’s their efficiency advantage, but it’s also their limitation.

The transition risk on exit is the factor most often overlooked during the sales process. When you leave G&A, your employees’ participation in the master plan ends. They’ll typically have rollover options, but the transition creates friction: participant communications, rollover paperwork, potential gaps in contribution processing, and the need to establish a new plan or join a new one. None of this is catastrophic, but it’s a real operational event that takes time and attention. Understanding how PEO exit processes work in practice — including what happens to benefits mid-transition — is worth studying before you commit. Ask G&A explicitly about their offboarding process for retirement plan participants before you sign. A reputable PEO should be able to walk you through this clearly.

Questions to Ask G&A Before You Commit

Don’t walk into a G&A sales conversation without a clear list of questions about the retirement program specifically. Here’s a practical starting point:

On plan design: What is the vesting schedule for employer contributions? Can I set a custom employer match rate, and are there limits on what I can offer? Is a Roth 401(k) option available? Does the plan support profit-sharing contributions?

On plan costs: What are the expense ratios on the available investment funds? Are there per-participant fees, and if so, how are they structured? Is retirement plan administration included in the base PEO fee, or is it priced separately? Are there any TPA fees layered in?

On administration: How are employee contributions processed and on what timeline? What is the contribution funding deadline for employer match? Who handles participant questions about the plan — G&A’s team, a third-party recordkeeper, or both?

On compliance: How is ADP/ACP testing handled for my employee group? Has the master plan experienced top-heavy issues in recent years? What happens if my contribution data has errors — what’s the correction process?

On transitions: What happens to participant accounts if I exit the PEO? What is the typical timeline for that process? What support does G&A provide during the transition? Can employees keep their balances in the plan temporarily, or does the exit trigger an immediate distribution event? Reviewing how another PEO handles contract exit and participant transitions can help you know what reasonable offboarding looks like.

That last cluster of questions is the one most business owners skip. They’re focused on onboarding. The offboarding process tells you a lot about how a PEO actually operates when the relationship isn’t going well. Ask anyway.

The Bottom Line on G&A’s Retirement Program

G&A Partners’ 401(k) offering is a legitimate, well-structured benefit for small businesses that lack the scale or internal bandwidth to run their own retirement plan. The co-employment model shifts meaningful fiduciary responsibility to G&A, removes the standalone plan administration burden, and gives your employees access to a pooled plan that may offer better fund options than you’d access independently. For the right business, that’s a real and valuable combination.

It’s also not free, not infinitely flexible, and not separable from the broader PEO relationship. The plan terms are standardized. The cost is bundled. And if you ever leave G&A, the transition process for retirement plan participants requires planning and attention.

The businesses that get the most out of this arrangement go in with clear expectations: they know what they’re paying, they’ve asked the right questions about plan design and exit process, and they’ve compared G&A’s offering against at least one alternative. The businesses that end up frustrated are usually the ones who signed based on a benefits overview slide without digging into the specifics.

Before you renew your PEO agreement or sign with G&A for the first time, compare your options. Most businesses overpay due to bundled fees and unclear administrative markups. We break down pricing, services, and contract structures so you can make a smarter decision.