Numeral, a provider of AI-powered tech to automate sales tax compliance workflows in over 90 countries, raised a $100M Series C led by Insight Partners

Your sales tax compliance will soon require less manual work and fewer errors.

Numeral, an AI-powered sales tax compliance platform, announced a $100 million Series C funding round led by Insight Partners. The company, which operates in over 90 countries, plans to use the capital for accelerated product development and expanding its services across industries like software, manufacturing, distribution, and wholesale. Numeral also intends to grow its engineering, sales, marketing, and product teams. The funding comes amidst an increasingly complex regulatory landscape, with new legislation like California's expanding sales tax to prewritten software from 2027. Numeral's platform handles the entire sales tax compliance lifecycle, including nexus monitoring, registrations, calculation, filing, remittance, and exemption certificate management. The company reported a 327% increase in total transaction volume year-over-year, expecting to process over 80 million transactions. Founded in 2023, Numeral previously raised $35 million in a Series B round in September 2025.

The substantial Series C funding round for Numeral underscores the growing market demand for automated solutions to navigate increasingly complex and fragmented global sales tax regulations. As jurisdictions introduce new rules, such as California's expansion of sales tax to SaaS, businesses require sophisticated platforms that can adapt in real-time. Numeral's success in attracting significant investment signals a shift towards AI and automation as essential tools for maintaining compliance without manual overhead.

This capital infusion positions Numeral to further enhance its platform, potentially setting new industry standards for tax automation and compliance efficiency. Companies relying on Numeral or similar services can anticipate more robust features and broader coverage, reducing operational burdens and mitigating risks associated with tax non-compliance. The continued investment in this sector highlights the critical need for scalable solutions that can keep pace with evolving global tax laws.