CHARTS & GRAPHS

21 Hard-Earned Lessons from Tax Season 2026

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And What 20 Years of Data Say Comes Next

By CPA Trendlines Research

There is a ritual to tax season. It begins with anticipation dressed as control.

Practitioners tally the risks — the IRS, the law, the clients who will not deliver on time — and tell themselves this year will be different. Then the season starts. And it isn’t.

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The CPA Trendlines Busy Season Barometer tracks that ritual across waves of surveys from September 2025 through April 2026 with more than 300 respondents.

The data show not a profession in crisis, but a profession under stress. Where pressures no longer arrive one at a time but stack up on each other. Where external shocks have been absorbed, and internal limits have come into view.

Tax season is full of noise, chaos and confusion. But a close look at the Busy Season Barometer from this year – and going back more than 20 years – can cut through the fog for the patterns, trends, insights and, most of all, the tough lessons learned.

Tax season 2026 gives us at least 21 essential takeaways.

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Tax Prep Billing Rates Lift Busy Season 2026

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Busy Season 2026 sets up a year of tough decisions about monumental transformations.

Busy Season 2026: Billing rates for tax prep and planning are increasing at a 10.8% year-over-year rate, rushing past the average tax and accounting fee increase of 4.5%.

By CPA Trendlines

Busy Season 2026: Tax professionals struggle to improve systems and metrics, with “much worse” beating “much better” by three to one.

As tax season 2026 comes to a close, new data show that price hikes for tax prep and planning are running at double-digit rates, even as billing rates for most other accounting services are flattening out, according to new CPA Trendlines research in conjunction with the annual Busy Season Barometer.

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MORE Tax Season Trends & Insights

Tax practitioners are finishing the season as a divided profession, with fewer than 6% reporting a “much better” year, against almost three times that many reporting a “much worse” year.

Coming out of tax season, many firms are facing major decisions in the coming months driven by new artificial intelligence investments, a fundamental shift in staffing models, and private equity disruptions.

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Tipping Point: Accountants Scramble for AI-Enhanced Tax, GL, and Workflow Apps

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New workflow systems expected to cut labor problems and shore up profit margins.

Coming out of tax season, more than 55% of firms are looking for new artificial intelligence solutions, up 10 points from before the season. The scramble for practice management and workflow solutions has almost doubled. (CPA Trendlines Research)

By CPA Trendlines Research

The CPA Trendlines Busy Season Barometer shows accounting firms are already planning changes to their technology and workflows, aiming to address the same pressures that defined this year’s busy season.

The research points to a profession broadly aligned with what needs to change, but much less aligned with how quickly those changes can be put into practice.


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Firms across the spectrum, whether reporting a better or worse tax season, identify similar priorities: improving efficiency, reducing manual work and making better use of technology.

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 Busy Season 2026: Clients, Pricing, Staffing… CRUNCH

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CPA Trendlines Busy Season Barometer: Modest Gains, Mixed Outlook, Cautious Tech Upgrades Ahead

Top concerns: “The returns aren’t harder—they’re just later.” (CPA Trendlines Busy Season Barometer)
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By CPA Trendlines Research

The 2026 tax season shows some gradual improvement for certain firms, but most practitioners report conditions that remain largely unchanged from a year ago, according to the latest data from the CPA Trendlines Busy Season Barometer.

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MORE Tax Season 2026

The good news is: 2026 hasn’t turned into the disaster some were expecting with a new tax law and diminished IRS. The bad news is: 2026 is turning into a relatively routine year — without the advances in workflow or the better margins from higher-value services that some were hoping for.

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PE Wars: The CPA Platform Economy Is Concentrating Fast

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After hundreds of deals, the data show a gravitational pull toward a handful of buyers now driving the profession’s future.

Five Top Power Players

CPA Trendlines chart showing PE-backed accounting platform power players

CPA Trendlines PE Deal Tracker: Mega-aggregators dominate the money flow as the race tightens between Ascend, Aprio, Crete, Eisner and Ryan. (Data: March 31, 2026)

By CPA Trendlines Research

The frantic pace of deal-making this past March marks a turning point. What had been described as a consolidation phase has matured into something more defined and more consequential: a platform-driven market in which a relatively small number of repeat acquirers are shaping the profession’s future.

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As the first quarter of 2026 closes, the story is no longer simply about transactions. It is about structure. The question has shifted from who is buying whom to which investment models, operating systems, and capital strategies will define the next decade of accounting.

For years, the prevailing narrative held that private equity would democratize the profession. Capital, it was said, would spread broadly across hundreds of firms, opening access to institutional funding that had never before been available. But the data tells a different story.

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