K1x Overview

Private Market Tax Data. Digitized. Distributed. Decoded. A Fast Company Most Innovative Companies 2025 honoree, K1x is building THE intelligent tax infrastructure for private markets. Our patented, AI-powered SaaS platform automates the extraction, validation, and distribution of tax data from K-1s, K-3s, and 1099s, and streamlines IRS-certified 990 e-filings— delivering tax compliance and clarity. K1x connects investors, accounting firms, tax software, and taxing authorities in a seamless digital workflow—simplifying entity tax operations, accelerating filings, and reducing risk. Trusted by more than 40,000 organizations, K1x serves:

• 44 of the 100 largest U.S. institutional investors

• 20 of the top 25 accounting firms

• 11 of the top 100 private foundations

• 45 of the top 100 university endowments

• 7 of the top 40 health systems Battle-tested by the best and built for scale, K1x makes tax time less taxing.

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