New upgrade streamlines processing of over 40 million K-1s and 44 million 1099-Ks filed annually, enhancing efficiency for accounting firms, funds, and family offices.

K1x, Inc., the fintech company behind the industry-leading K1 Aggregator®, today announced the launch of Aggregator Plus™, a powerful new product upgrade that adds automated Form 1099 data extraction to its patented, AI-powered tax platform. This enhancement addresses the growing complexity of tax document processing, with over 40 million Schedule K-1s and an estimated 44 million Form 1099-Ks filed annually.

Built as an optional upgrade to K1 Aggregator®, Aggregator Plus™ provides tax professionals with a unified solution for processing complex investor tax documents across multiple entities and asset classes. The extension is purpose-built for the needs of accounting firms, alternative investment funds, and family offices, where fragmented tax workflows and tight deadlines often increase costs and audit risks.

“K1 Aggregator® stands alone in its ability to address the needs of overworked tax professionals facing unsustainable K-1 volume and complexity,” said John LaMancuso, CEO of K1x. “Now, with 1099 automation in Aggregator Plus™, we’re removing even more manual processing burdens from tax teams so they can redeploy those same hours on growth opportunities for their own organizations.”

Key Features of Aggregator Plus™:

• Patented AI-powered data extraction for both Schedule K-1 and Form 1099
• 100% digitization of key tax elements with executive summary views
• Aggregation and reporting across federal, state, and international requirements
• Seamless integration into existing K1 Aggregator® workflows
• Optional upgrade to existing subscription - no separate implementation required

With the addition of 1099 automation, K1x further strengthens its position as the leading tax compliance automation platform. The company’s solutions are already used by over 8,000 organizations, including 44 of the 100 largest institutional investors, 20 of the top 25 accounting firms, and 45 of the top 100 university endowments.

Aggregator Plus™ will be available to Early Access Program (EAP) participants in June 2025, with general availability in July.

About K1x

A Fast Company Most Innovative Companies 2025 honoree, K1x is building THE intelligent tax automation platform. Our patented, AI-powered SaaS solution handles the extraction and distribution of tax data from complex documents like Schedule K-1s, K-3s, 990s, and 1099s–automating tax compliance and tax insights.

K1x connects investors, accounting firms, tax software, and taxing authorities in a seamless, digital workflow–simplifying fund tax operations, accelerating filings, and reducing risk. As the industry-standard, IRS-certified solution for tax-exempt filings and alternative investment tax data, K1x is trusted by more than 8,000 organizations, including:

• 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 transforms compliance and makes taxes less taxing. To learn more, visit k1x.io or follow K1x.io’s LinkedIn page.

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