Tax Advisory Services Small Firms Can Actually Deliver

Small tax firms are running out of staff before they run out of clients, and that fact alone is forcing a decision most firm owners would rather not make yet. The profession lost a large cohort of accountants and auditors in recent years, and the Bureau of Labor Statistics projects tens of thousands of new job openings annually through 2035 that current graduation rates simply won't fill. That's not a hiring problem that clears up next tax season.

The One Big Beautiful Bill Act, signed into law on July 4, 2025, makes the staffing math worse before it makes it better. Thomson Reuters Tax & Accounting projects a 10 to 15 percent increase in 1040 return complexity for the 2026 filing season. That means more hours per return, not fewer, at exactly the moment firms have less staff capacity to absorb it. Something has to give. Firms can keep trying to serve the same client count at the same low margin per return, or they can shrink the compliance workload and put the freed-up hours into work clients will actually pay a premium for.

Consolidation adds a second kind of pressure, quieter but real. Between October 2025 and June 2026, Cherry Bekaert acquired Herbein + Company in Pennsylvania, Tarsus in Washington D.C., Richardson Kontogouris Emerson LLP in Los Angeles, and Calvetti Ferguson in Houston. Territory that small firms once had to themselves is getting absorbed into mid-market platforms with more capital and broader service lines. One piece of near-term relief did materialize: the IRS Direct File program, which had threatened to commoditize simple 1040 prep, was suspended by the second Trump administration in late 2025 and won't be available for 2026. That removes one threat.

The advisory revenue gap between large and small firms: a closing window, not a permanent condition

The gap between what large firms earn from advisory work and what small firms earn from it is a maturity gap, and it's closeable. It's a maturity gap, and it's closeable. The IPA Practice Management Report for 2023 found that larger firms pull a substantially bigger share of revenue from non-compliance services than smaller firms do. Larger firms simply built the advisory muscle earlier. Nothing about the underlying economics says a four-person firm can't do the same thing at its own scale.

The revenue case, where it's been measured, isn't marginal. Thomson Reuters Tax & Accounting reports that firms offering advisory services see monthly revenue per client rise by up to 50 percent, based on self-reported results from users of its Ready to Advise solution. That's self-reported, but it lines up with what pricing data shows independently. Compliance work got a little more expensive. Advisory work got a lot more expensive, relative to it.

Most of the profession hasn't moved yet. A Journal of Accountancy tax software survey found that among firms expanding their services, a large majority pointed to tax advisory as the growth area. But that's firms that are expanding. The majority of the profession, expansion-minded or not, still hasn't made the shift. That gap between stated intent and actual delivery is exactly where a small firm willing to commit now finds room to move first. Pricing data confirms the direction of travel: per CPA Trendlines, the national average base fee for a Form 1040 with Schedules 1–3 rose substantially between 2023 and 2025, while advisory-only engagements at solo and small firms (1–3 practitioners) command multiples of that, per industry pricing data compiled by Instead.

The real obstacle is not expertise, it is delivery infrastructure that most small firms have not built

There's a comfortable story going around that technology has already solved this: that AI and workflow software democratize advisory expertise so thoroughly that any firm, regardless of staff experience, can deliver it consistently. Thomson Reuters Tax & Accounting treats that as accurate in principle, and it is, but incomplete in practice, and it lacks the habits needed to put it into practice. The tools exist. The habits around using them mostly don't.

A Journal of Accountancy survey found that nearly all respondents said they weren't using technology tools to review returns and surface planning opportunities for clients. Among the specific applications the survey listed, one, Holistiplan, was reportedly in use at only a small fraction of firms. That's not a capability gap. The software is sitting there. It's an adoption gap, and adoption gaps come from somewhere specific: Rosenberg Associates research on firm size and capacity points to partners at small firms who simply don't have the time, or the developed consulting specialty, to build advisory delivery from a standing start, compounded by recruiting constraints that cap how much they can staff up even if they wanted to.

Pricing structure makes the problem worse rather than better. The AICPA's MAP Survey, cited via LaunchAdvisor, found that firms getting more than half their revenue from fixed or retainer arrangements post higher realization rates, less write-off, and meaningfully stronger client retention. Yet the shift away from hourly billing across the profession remains incomplete. Firms are still pricing advisory work like it's an extension of the timesheet, which caps what they can charge for it and undercuts the retention benefit that comes with a flat fee. None of this is really an expertise problem. Most small firm partners know enough about their clients' businesses to advise well. What's missing is a repeatable process, so the firm isn't reinventing the engagement from scratch with every new client.

The advisory services that match the expertise and capacity a small firm already has

The instinct to chase whatever advisory service commands the highest fee is understandable and usually wrong. Matching the service to expertise the firm already has, and to a client base that already needs it, works better than reaching for something unfamiliar. The starting action is to pick one OBBBA-driven advisory service that matches the existing client base, build a packaged delivery process for it, price it on a retainer or fixed-fee basis, and run it through one full cycle before adding another.

Entity structure and QBI optimization sits closest to what most small firms already do. Modeling reasonable compensation, pass-through deductions, and S-corp elections for owner-operators is technical territory most firms already occupy. The OBBBA extends and enhances the qualified business income deduction for pass-through entities, which turns this from a once-a-year compliance checkbox into a live, client-facing planning conversation for 2026. It's a natural entry point precisely because it builds on top of compliance work the firm is already billing for.

Cost segregation advisory works differently, and it's worth understanding why. Bonus depreciation is now fully restored for property acquired after January 19, 2025 under the OBBBA, which makes cost segregation studies, engineering analyses that identify shorter-lived building components inside a property so they can be reclassified for immediate deduction, considerably more valuable to real estate owning clients. A small firm doesn't need an engineer on staff to offer this. Partnering with a cost segregation firm and owning the advisory layer, identifying which clients would benefit, framing the return on investment, and coordinating the engagement, is a workable and repeatable model on its own. The firm's value here is judgment and coordination, not the technical execution, which matters a great deal for a practice that can't add headcount.

SALT planning is narrower and, for the right client base, just as valuable. The OBBBA substantially raised the SALT deduction cap for 2025 through 2029, which creates an immediate, quantifiable planning conversation for clients in high-tax states. There's no need to build a wealth management arm to deliver this. It just takes a structured process for flagging affected clients and running the numbers.

NOL carryback planning covers a different segment of the client base: businesses that had a loss year. The OBBBA lets certain businesses carry losses back five years and then forward indefinitely, opening a path to recover taxes already paid. The firm already has the return history and the relationship. The advisory work is spotting the opportunity and handling the amended filing or refund claim.

Tips and overtime compliance advisory rounds out the list, and it fits a specific kind of client: service and hospitality businesses now facing new OBBBA reporting requirements for tips and overtime, which may mean upgrading payroll systems and retraining staff. Firms with existing clients in that sector don't need to become payroll specialists to help here. The client already needs someone to explain the requirement, assess the operational gap, and recommend next steps.

Building repeatable delivery around one advisory service before expanding to others

The practitioners who've actually pulled this off at small scale followed a pattern that's easy to state and hard to stick to: pick one service, build a process around it, prove it works, then expand. Not the other way around. T. Jayden Doyé, CPA, founded Prestige Accounting & Consulting in Atlanta in 2019, and the Journal of Accountancy documents it as a working example of the niche-first model at solo-to-small scale. The niche came before the growth, not after. Jackie Meyer, who ran an award-winning CPA firm from 2010 to 2022, later founded TaxPlanIQ, a member of the AICPA's 2023 Accelerator Cohort, and built the ROI Method of Value Pricing, an approach that prices advisory work against demonstrated client value instead of hours logged. The lesson from Meyer's path is that a repeatable pricing framework is itself a delivery asset, every bit as much as a checklist or a software tool.

Packaging affects how firm owners price and position the offering, and firm owners tend to underestimate that. Thomson Reuters' 2026 advisory guidance points to naming and defining the offering, something like an "OBBBA Impact Review," a "Strategic Planning Session," or an entity-specific annual package, as the thing that makes delivery consistent, lets a partner delegate parts of it to junior staff, and turns a fuzzy pricing conversation into a straightforward one. Without a defined package, every engagement gets negotiated and scoped from zero, which is exhausting and doesn't scale past the owner's own hours.

The first operational move is segmentation. Look at the existing client list and flag who's actually affected by OBBBA provisions, QBI claimants, real property owners who'd benefit from cost seg, service businesses with tipped employees, and start there. There's no need to go find new advisory clients before the firm has served the ones already on the roster. Thomson Reuters also points to a simpler habit that costs nothing to install: training staff to ask a consistent strategic question during routine compliance work, something like whether a client has considered how the tip income changes affect their business structure, turns a compliance touchpoint into advisory discovery without adding a separate workflow.

None of this holds together without a pricing model that matches it. Per the CPA.com & AICPA PCPS Client Advisory Services Benchmark Survey, accounting firms offering advisory services with CFO or higher-level business insights services earn meaningfully higher monthly recurring revenue, and that pattern correlates with higher realization, fewer write-offs, and stronger retention. Fixed or retainer pricing is what makes advisory economics predictable, for the client and for the firm.

AI tools and the capacity math, without requiring a larger team

The most common objection to any of this is capacity: firms already stretched thin on compliance don't see where the hours for advisory work are supposed to come from. AI-assisted tools have started answering that question in documented ways that 2026 sources are already reporting in practice. A Journal of Accountancy report on real-world AI use at small firms found some firms automating the bulk of individual return preparation with AI-assisted tools, while others used generative AI research applications to cut document analysis time within advisory engagements significantly. That's hours coming back, concretely, not hypothetically.

CPA.com's initiative, which introduced a Tax Transformation Framework alongside a benchmarking survey open to firms of all sizes, is a useful signal here too, less because of the framework itself and more because it shows the profession's infrastructure catching up to the idea that firms need to move past compliance-first operations. The practical effect, where automation takes over routine intake, return review, and document analysis, is that partner time shifts from triage toward the advisory conversations that actually carry premium fees. That's the capacity reallocation the economics have been demanding, achieved without adding a single hire.

The gap deserves honesty, though. The same Journal of Accountancy survey documenting all this aspiration to expand advisory also found that nearly all respondents weren't using the technology already available to surface planning opportunities from client files. The tools exist. The habit of reaching for them hasn't caught up yet. AI changes the capacity math, but only for firms that actually build the workflow around it, which is the same delivery-infrastructure problem this piece keeps circling back to.

A small firm that has made this work in practice

When the specifics are stripped away, the documented cases of small firms making this pivot look remarkably alike. They started from client relationships and expertise already in hand, picked a narrow niche instead of a broad one, built the delivery process before trying to expand it, and changed how they priced the work. That order matters. Skipping straight to expansion is the mistake that stalls most attempts before they get anywhere.

The profession's own numbers back up that shift, showing it is already underway if still early. Among firms reporting they're expanding services, 75 percent named tax advisory as the growth area, according to the Journal of Accountancy tax software survey. That's a majority of the firms that are moving, and plenty of firms haven't started yet, which is exactly where the opportunity sits for the ones that do.

Waiting carries its own cost. Cherry Bekaert's four acquisitions between October 2025 and June 2026 illustrate a mid-market consolidation wave that keeps absorbing the mid-tier client relationships small advisory practices might otherwise have grown into. Firms that sit on the sidelines aren't just missing upside, they're watching the territory shrink around them.

The action item out of all this is narrower than most firm owners expect, and that's the point. Pick one OBBBA-driven advisory service that fits the client base already on the books, build a packaged process for delivering it, price it on retainer or fixed fee, and run it through a full cycle before even considering a second offering. Not five services. One.