FTE vs pay per return accounting outsourcing are the two primary pricing structures US CPA firms use when working with offshore or nearshore tax preparation providers. Under the per-return model, a firm pays a fixed fee per completed return, the amount varying by return type and complexity. Under the dedicated full-time equivalent model, the firm pays a flat monthly fee for a professional who works exclusively on that firm’s client base.Â
Both models work. The question is which one works better for a specific firm at a specific volume and stage of growth.Â
What follows walks through how each outsourced accounting pricing model works in practice, where each one genuinely holds up, and what most firms overlook when they make this decision. This blog will answer this important question, and hopefully give you more clarity. Read on.Â
What makes this decision harder than it looks?
The per-return model has obvious appeal. You only pay for completed work, volume is unpredictable before the season, and paying for capacity you don’t use feels wasteful. That logic is sensible for some firms. It’s also how a lot of practices end up locked into a model that stops working for them as soon as volume grows.Â
The real problem is that most firms choose between these models based on what feels safer rather than what the numbers support. Per-return pricing feels safer because the commitment is smaller. The FTE model feels riskier because the monthly fee continues during quieter months. Neither feeling is wrong. But neither is the whole picture.Â
How the two models actually work?
Per-return pricingÂ
You pay a set fee per return type. The provider handles whichever returns you assign. There’s no obligation to send a minimum volume, and that flexibility is real.Â
The downside is also real. Per-return arrangements typically assign whichever preparer is available on the provider’s roster, not a consistent individual who knows your firm’s workpaper style or which clients are predictably complicated. Every batch you send, someone is learning your preferences from scratch. That matters more than most firms realise until they’re deep into review season.Â
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FTE model
The FTE model gives a firm a dedicated professional at a fixed monthly rate. That person works exclusively on one firm’s client base and builds familiarity with clients, return types, and review expectations over time. The monthly cost doesn’t change based on how many returns went out that week. In peak months, that’s a meaningful saving over per-return billing at the same volume. In quieter months, it’s a fixed cost whether the pipeline is full or not. That’s the trade-off that makes some firms hesitate, and it’s worth being direct about it rather than glossing over it.Â
Where per-return pricing makes sense?
There are situations where per-return fits better, and it’s worth naming them honestly.Â
The clearest case is a first outsourcing engagement. You don’t know the provider yet. You don’t know how their work quality holds up, how much review time it generates, or whether their process matches your workflow. Starting with a defined batch on per-return terms is how you find that out without a long-term commitment. It’s the right call for a pilot.Â
Per-return also fits firms with genuinely unpredictable or heavily seasonal volume. A small practice with 80 individual returns clustered in January and February and almost nothing in Q3 doesn’t have the volume to justify a year-round FTE. The math doesn’t support it.Â
But here’s where most firms get stuck. They start with per-return because it fits the pilot. Then they stay with it after the pilot, because switching models takes planning. Volume grows. Seasons lengthen. The per-return bill climbs. And they’re still on a model that made sense eighteen months ago but doesn’t anymore. That’s not a strategic decision. It’s inertia.Â
Where the FTE model holds up?
Let’s see where does the FTE model is beneficial for CPA firms:Â
- The continuity problem
This one doesn’t get enough attention in most discussions about CPA firm staffing models. Per-return arrangements rotate whoever is available on the provider’s team. That professional might be excellent. The next one might be inconsistent. You rarely get the same person on a complex 1065 or multi-state 1120-S twice in a row.Â
The FTE model solves this by design. The same professional handles the firm’s work repeatedly. Over months, they understand which clients send disorganised documents, which returns have recurring complexity, and how the firm’s reviewers like to see workpapers structured. That translates directly into lower review time per return, which is where most of the hidden internal cost in an outsourcing arrangement lives. A per-return price that generates three extra hours of review on your side isn’t the bargain it looked like on the invoice.Â
- The cost argument at volumeÂ
Per-return pricing is cheaper at low volumes. That changes as volume grows. The crossover depends on your return mix, but most CPA firms find the FTE model wins on a cost-per-return basis once they’re processing consistent year-round volume that can keep a dedicated professional occupied.Â
The U.S. Bureau of Labor Statistics reported an average annual wage of $58,860 for tax preparers and $81,680 for accountants and auditors as of May 2024. Add employer payroll taxes, benefits, and overhead, and the fully loaded cost of an in-house hire climbs well above those base figures. Offshore FTE arrangements run at a fraction of that. For a firm doing the math honestly, the differential is hard to ignore.Â
The talent pipeline context matters here too. The AICPA’s 2023 Trends in the Supply of Accounting Graduates and the Demand for Public Accounting Recruits documented a 7.4 percent decline in accounting program graduates. That pipeline hasn’t recovered. Firms building structured offshore capacity through dedicated FTE arrangements are making a decision about how they staff the next three to five years, not just the next busy season.Â
How to actually decide?
The question to ask isn’t “which model is cheaper?” It’s “what problem am I actually trying to solve?”Â
If you’re outsourcing for the first time, per-return is the right place to start. Keep the commitment low. Run a structured pilot with a clean set of returns. Measure output quality, turnaround time, and the review burden it generates before scaling anything. Give it a full season before drawing conclusions.Â
If you’ve completed a pilot and you’re satisfied with the provider, the next question is volume. Is the workload consistent enough to keep a dedicated professional occupied for most of the year? If the answer is yes for six months or more, the FTE model deserves a genuine evaluation.Â
Run the calculation with your actual numbers. Take your average per-return fee, multiply it by your annual return volume across all types, and compare it to a full year of FTE monthly fees. Then add the review time per return the per-return model generates. That’s your real cost comparison, not the headline rate.Â
If quality consistency is the primary concern, the FTE model wins that comparison directly. If flexibility and low commitment matter more, per-return earns it. Most firms don’t stay in the low-commitment phase as long as they think they do.Â
At a Glance
| Factor | Pay Per Return | FTE Model |
|---|---|---|
| Best for | Pilots, low or unpredictable volume | Steady, growing year-round volume |
| Cost structure | Variable per return | Fixed monthly |
| Cost at scale | Increases with volume | Stays flat |
| Team continuity | Rotating available staff | Dedicated professional |
| Knowledge accumulation | Resets each engagement | Builds over time |
| Busy season cost | Spikes with return volume | Unchanged |
| Ideal timing | First outsourcing engagement | After a successful pilot |
Our two cents
In our experience, what’s true is that most firms stay on per-return longer than they should, because switching models takes planning and a clear-eyed look at the numbers. The firms that make the move to a dedicated FTE arrangement at the right time typically find that the quality consistency and cost predictability justify the decision faster than they expected.Â
If your outsourcing bill is becoming a material, variable line item in your March budget, that’s usually the signal. The model that felt like the cautious choice has started to become the expensive one.Â
Datamatics Business Solutions works with CPA firms across the US on both engagement models, with the flexibility to move from a per-return pilot into a dedicated FTE arrangement as volume and confidence grow. If you’d like to work through which model fits your current workload, talk to our experts today.Â
What's the difference between FTE and pay per return outsourcing for CPA firms?
Per-return pricing charges a set fee for each completed return and costs vary with volume. The FTE model charges a flat monthly fee for a dedicated professional.
What does a dedicated FTE typically handle for a CPA firm?
Most FTE arrangements cover tax return preparation across 1040s, 1120-S, 1065s, and 990s. Many also handle bookkeeping, extension work, and payroll filings depending on scope. The firm retains final review and client-facing communication.
How do firms protect client data under either outsourcing model?
They require SOC 2 certification, encrypted file transfer, and a signed data-processing agreement regardless of model. Confirm role-based access controls and ask how the provider handles data after the engagement ends.
Is the FTE model still worth it for smaller CPA firms?
 It depends on return volume. Smaller firms often benefit more from a per-return arrangement until volume crosses the breakeven threshold. That said, some smaller firms move to FTE early for the continuity benefit alone, particularly if they’ve had consistency problems with rotating per-return staff.
