Every tax season, firms lose hours to software that wasn’t built for how they actually work — the wrong pricing model, no cloud access, or a form library that can’t keep up with a growing client base. With the U.S. tax code running well past 70,000 pages, the software you choose to prepare returns matters almost as much as the expertise behind it.
This guide compares the five professional tax software platforms CPA firms evaluate most often — CCH Axcess, Thomson Reuters UltraTax CS, Intuit Lacerte, Drake Tax, and Intuit ProConnect Tax — on pricing model, cloud access, firm-size fit, and where each one falls short. If you’re building or scaling a firm, outsourced tax preparation services can also help you get more out of whichever platform you land on, since software is only half the equation — the team running it is the other half.
| Software | Deployment | Best For | Starting Point | Standout Strength | Main Limitation |
|---|---|---|---|---|---|
| CCH Axcess | Cloud-native | Mid-size to large firms, multi-service practices | Custom quote (firm-wide licensing) | Unified tax, audit, and workflow platform | Steep learning curve, pricier for solo/small firms |
| Thomson Reuters UltraTax CS | Desktop with cloud hosting option (“UltraTax Cloud”) | Large firms with complex, multi-state returns | Custom quote, module-based pricing | Deepest form library and built-in tax research | Cost adds up quickly as you add modules and states |
| Intuit Lacerte | Desktop, cloud-hosting available | Mid-size firms with complex individual and business returns | Pay-per-return or unlimited plans | 5,700+ forms, strong error-checking | Pay-per-return costs escalate at high volume |
| Drake Tax | Desktop, cloud-hosting available | Solo practitioners and small-to-mid firms | Among the lowest-priced full-featured options | Price-to-feature ratio, fast processing | Interface feels dated next to newer cloud platforms |
| Intuit ProConnect Tax | Fully cloud-based | Firms that want browser-based access with no local install | Pay-per-return or bundled plans | True cloud-based professional tax software, tight QuickBooks integration | Costs more per return than Drake at low volume |
Before picking a winner, it helps to know what you’re actually comparing. When evaluating tax software for CPA firms, the criteria that matter most are:
With those criteria in mind, here’s how each platform stacks up.
CCH Axcess, from Wolters Kluwer, is built for firms that want tax, audit, and workflow management on one platform rather than stitched-together tools.
Features:
Pros:
Cons:
Best for: Mid-size to large firms running tax, audit, and advisory services under one roof.
UltraTax CS is the tool of choice for firms handling high-complexity, multi-state returns, and it’s the platform most associated with deep built-in tax research.
Features:
Pros:
Cons:
Best for: Large firms with complex, multi-state, high-volume returns that need deep research tools built in.
This is the comparison mid-size and large firms run into most often, since both platforms target the same segment.
| Factor | CCH Axcess | UltraTax CS |
|---|---|---|
| Deployment | Cloud-native by default | Desktop-first, cloud available via UltraTax Cloud hosting |
| Best fit | Firms wanting tax + audit + workflow unified | Firms prioritizing deep tax research and form complexity |
| Learning curve | Steeper — full practice-management ecosystem | Moderate — familiar desktop-software feel even when cloud-hosted |
| Pricing model | Custom, firm-wide licensing | Module-based, scales with states/entities added |
| Where it wins | Firms consolidating multiple systems into one | Firms that want the deepest built-in research and reference tools |
Neither is a universal “better” choice — CCH Axcess tends to win for firms consolidating their tech stack, while UltraTax CS tends to win for firms that value research depth and are comfortable paying per module as they scale.
Lacerte sits in the middle of the market: more form coverage than entry-level tools, without the full enterprise commitment of CCH Axcess.
Features:
Pros:
Cons:
Best for: Mid-size firms that need heavy form coverage for complex returns without CCH Axcess-level overhead.
Drake consistently rates as one of the best value options in independent surveys of tax professionals, and it remains the default choice for many solo and small-firm preparers.
Features:
Pros:
Cons:
Best for: Solo practitioners and small-to-mid firms prioritizing value and speed over enterprise-scale features.
ProConnect is Intuit’s fully cloud-based professional tax software, built for firms that want browser access with zero local installation.
Features:
Pros:
Cons:
Best for: Firms that want cloud-first access without hosting arrangements, especially those already using QuickBooks.
Not every product marketed as “cloud-based professional tax preparation software” works the same way, and the distinction matters when you’re comparing:
If remote and multi-location access is the priority, cloud-native platforms remove a layer of dependency. If you already prefer a desktop workflow and just need remote access occasionally, hosted desktop software (like UltraTax Cloud) may be the more familiar transition.
Firm size and return complexity aren’t the whole picture, though — capacity matters just as much. Many firms that outgrow their software’s efficiency during peak season solve the bottleneck by pairing their platform with offshore staffing for CPA firms rather than switching software altogether.
Intuit ProConnect Tax and CCH Axcess are the two fully cloud-native options among major professional platforms. UltraTax CS and Lacerte offer cloud access through third-party hosting rather than a native cloud build.
It depends on what's driving the growth. If you're adding service lines (audit, advisory) alongside tax, CCH Axcess's unified platform reduces system sprawl. If your growth is in return complexity and multi-state work, UltraTax CS's research depth and form coverage tend to be the better fit.
UltraTax CS is desktop software by design, but it's commonly deployed through third-party cloud hosting — sometimes referred to as UltraTax Cloud — which gives firms remote access to the same desktop application.
Drake Tax is frequently rated highest for value among newer and smaller practices, largely due to its price-to-feature ratio and consistent update reliability.
No — pricing tier matters less than fit. A firm running high-complexity multi-state returns will get more value from UltraTax CS or CCH Axcess, while a firm with simpler, higher-volume returns is often better served (and better off financially) with Drake or ProConnect.
CCH Axcess, UltraTax CS, Lacerte, Drake, and ProConnect each solve for a different combination of firm size, return complexity, and budget — there’s no single “best” professional tax software, only the best fit for how your firm actually operates. According to the AICPA’s most recent tax software survey, preparer satisfaction correlates closely with firm size and return complexity matching the tool — which is exactly why the “best for” framing matters more than a single overall winner.
The other half of the equation is capacity. Even the best software can’t absorb a volume spike during peak season on its own. That’s where firms increasingly turn to outsourced support — whether that’s outsourced tax preparation services, tax planning and advisory, or dedicated offshore staffing for CPA firms to handle overflow without sacrificing turnaround time or accuracy.
Book a free strategy session to talk through which software and staffing combination fits your firm — or explore more insights on KMK’s blog.

Dev Kothari, a seasoned leader at KMK, heads the Special Teams, where he leverages his extensive expertise in managing large-scale accounting and tax return processing for U.S.-based clients. With a keen eye for workflow optimization and stakeholder collaboration, Dev drives exceptional efficiency and quality in high-volume project delivery. As a dual-qualified CPA (AICPA, Arizona) and Chartered Accountant (ICAI), Dev’s blend of strategic insight and technical prowess positions him as a key asset in ensuring KMK’s clients consistently achieve their financial goals.
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