Taxwire Raises $25M to Scale Fully Managed AI Sales Tax Automation Platform

Taxwire, a global sales tax automation platform, today announced $25M in Seed and Series A funding from Headline Ventures, XYZ VC, Vinyl, Recall Capital, and Nomo Ventures. The platform automates the complexities of sales tax collection, allowing businesses of all sizes to save time, reduce financial liabilities, and seamlessly manage compliance in the US and over 100 other countries.

Businesses Problem: 22,000 Different Tax Jurisdictions in the US Alone

For modern businesses, indirect tax compliance is no longer just a state-by-state issue, it is a hyper-local logistical nightmare and increasingly global problem. In the US alone, companies must navigate a staggering maze of over 22,000 different city, county, and local tax jurisdictions, each with the authority to set their own rates, rules, and filing deadlines. Because these local laws are constantly shifting, a single transaction might be subject to three overlapping tax layers with entirely different definitions of what makes a product taxable or exempt. Internationally, each country has different registration schemes, fiscal representation and compliance requirements, etc. For finance teams, manually tracking this sheer volume of rooftop-level variables, or relying on outdated software that miscategorizes products, almost guarantees catastrophic errors, leading to severe financial penalties and audits in an era where governments are aggressively hunting for missing revenue.

“Switching to Taxwire wasn’t just about recovering the $13K+ Avalara had over-collected, it was about establishing the operational foundation we need to support our growth,” said Jinal Sanghavi, VP of Finance at Levanta, a leading platform for e-commerce brands. “With Taxwire, every process is customer-approved. Nothing moves without our green light. This is a non-negotiable for a growing SaaS company.”

Taxwire’s Solution: Fully Managed & Automated Sales Tax Platform for 100+ Countries

Taxwire operates as an end-to-end managed sales tax platform that automates compliance lifecycle for fast-growing companies. By integrating seamlessly with existing billing, e-commerce, and accounting stacks, the platform replaces manual tracking with a completely transparent, set-and-forget framework. Taxwire combines frontier AI with human expertise to protect businesses from severe liabilities in the US and 100+ countries. Every transaction and filing is locked deterministically, ensuring finance teams remain fully audit-ready from day one. The platform natively integrates via self service integrations with all major billing providers and accounting platforms including QuickBooks, Xero, and NetSuite.

Taxwire handles the full tax lifecycle:

• Accurate Global Calculations: high-speed API and custom geocoding to pinpoint precise sales tax, VAT, and GST rates across tens of thousands of global jurisdictions
• AI-Powered Product Labeling: Automatically codes products to the correct tax rules, managing complex bundles and edge cases while reconciling across multiple systems.
• One-Click Validation & Anomaly Detection: Features a “ready to file” dashboard that cross-checks returns for missing data or threshold errors before submission
• Slack-Native Expert Support: Connects finance teams directly to seasoned tax specialists and AI agents via Slack, providing immediate, jurisdiction-level explanations.

“Between the 22,000 different jurisdictions and constantly shifting rules, sales tax is a massive liability that finance teams simply don’t want to deal with,” said Andrew Rea, Founder and CEO of Taxwire.“Our mission is to deliver a platform so accurate, transparent, and fully automated that our customers can plug it in and never have to think about sales tax again.”

“As a former CPA and operator who used tools like Avalara and Taxjar, I saw the gaps in current technology and the constant need for human intervention to get sales tax right,” explained Taylor Brandt, Partner at Headline. “Taxwire’s approach of merging frontier AI with leading tax experts has already become vital for hundreds of fast growing companies and we have full confidence in this experienced team.”

Led by Co-Founders Andrew Rea (CEO) and Steven Schmatz (CTO), Taxwire has built a highly specialized team bridging the gap between elite data engineering and complex compliance automation. To build their full-stack tax engine, the company has assembled industry veterans who previously developed tax infrastructure at Stripe, TaxJar, Fonoa, EY, and Avalara, alongside numerous former state tax auditors.

To learn more about how Taxwire is solving global sales tax compliance, or to request a demo, visit https://www.taxwire.com/.

About Taxwire

Taxwire is a global sales tax compliance platform built by tax experts that combines frontier AI with a white-glove managed service. Taxwire handles monitoring, registrations, calculations, and filings across the US and 100+ countries. The company is backed by Headline Ventures, XYZ VC, Vinyl, Recall Capital, and Nomo Ventures. Taxwire is trusted by leading companies including Coder, Omni, Middesk, and Honeystack. Learn more at https://www.taxwire.com/.

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