Numeral, the AI-driven sales tax compliance platform, has closed a $100m Series C round as businesses face a widening set of tax obligations across markets and product types.

Insight Partners led the round. Salesforce Ventures, Geodesic, Benchmark, Mayfield, FCVC, Y Combinator and Uncork also took part. Numeral plans to spend the capital on faster product development and a broader offering for sectors such as software, manufacturing, distribution and wholesale. It will also hire across engineering, sales, marketing and product.

The raise reflects a regulatory environment that keeps moving. California has passed legislation that brings prewritten software into the scope of sales and use tax from 2027. This covers SaaS and software that is delivered electronically or accessed remotely. Firms trading across multiple states and countries must track changes like this and adjust their systems each time.

Numeral has grown quickly over the past year. Its total transaction volume rose 327% year-over-year, and the company expects its tax engine to handle more than 80 million transactions.

Its customer base has also broadened, with notable gains among software, distribution and manufacturing companies, many of which are going through substantial change.

The platform covers the full sales tax compliance lifecycle. This includes nexus monitoring, registrations, tax calculation, filings, remittance and management of exemption certificates. Numeral also handles VAT and GST compliance in more than 90 countries and integrates with over 40 billing, financial and ERP systems.

The company pairs a deterministic tax engine with AI and automation to manage high-volume work, and in-house specialists are available to handle complex cases.

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