Column Tax joins Aiwyn

Today, I’m excited to share that Column Tax has been acquired and is joining Aiwyn.

When we started Column five years ago, the goal was simple but ambitious: build a fundamentally better way for Americans to file their taxes. We believed tax filing shouldn’t live in siloed, legacy software. It should be connected to their financial life, powered by modern infrastructure, and built to scale without sacrificing quality or trust.

At the time, most tax software was built as a standalone destination - disconnected from the tools people & tax prepares use constrained by legacy infrastructure, and originally built for a paper world that hadn’t meaningfully changed in decades.

We believed tax filing shouldn’t live in that separate world. That it should be connected to a person’s financial life, whether that was within a banking app or with a tax pro that they were already going to. That belief shaped every early decision we made: from product architecture, to partnerships, to how we thought about compliance and reliability from day one.

Since then, the team has built Column into the fastest-growing tax platform in U.S. history, supporting more than 1 million filed returns and powering tax experiences for some of the leading financial services companies in the country. We proved that high-quality tax filing could be delivered at scale, even in one of the most regulated, operationally complex parts of financial services.

Tax infrastructure is unforgiving. The stakes are high, the margins for error are thin, and the busiest moments are the most important. The Column team took on that reality head-on, building systems that could handle real-world volume, evolving regulations, and peak-season pressure, all while maintaining a consistently high bar for accuracy, reliability, and customer outcomes. I’m especially proud of how we built what we did.

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Why Aiwyn

As we got to know Aiwyn, the opportunity to expand our reach through deeper integration across the tax and accounting ecosystem became clear.

Aiwyn works with more than 800 of the top accounting and tax firms in the U.S. and is building the modern operating system for accounting firms. Their focus on trust, end-to-end workflows, and scale mirrors how we’ve approached tax from the start. More importantly, we share a vision for where this space is headed: tax infrastructure is becoming core, not peripheral, and the platforms that win will be the ones that can deliver a single experience that offers scale, reliability, and flexibility together.

By joining Aiwyn, we can accelerate what we’ve already been building: bringing Column’s tax engine to more companies, more firms, and more taxpayers, while continuing to invest in the underlying infrastructure that makes high-quality tax filing possible at scale. This allows us to pair Column’s tax engine with Aiwyn’s unique platform reach across the accounting industry.

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What This Means Going Forward

Our mission stays the same, and the team stays together building it. Column’s platform, people, and focus on building durable tax infrastructure are moving forward as part of Aiwyn.

With Aiwyn’s scale and reach, we’ll be able to move faster and deepen our impact across the ecosystem - while continuing to hold ourselves to the same bar we’ve always set for reliability, compliance, and customer outcomes.

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Thank You

This milestone belongs to a lot of people. To the Column team: thank you for taking on a complex, often invisible problem and building something real and lasting. Your discipline, care, and persistence made this possible.

To our partners and customers: thank you for trusting us with one of the most important financial moments in people’s lives. Your feedback shaped the product, and you pushed us to raise the bar every year.

To our investors and advisors: thank you for believing in this vision early and supporting us through the many challenges that come with building in this space.

I’m incredibly proud of what we’ve built together and excited for what comes next.