Whether managing sales tax, VAT, or GST, staying sales tax compliant is a complex undertaking. The stakes are high, with staff hours and penalties on the line. Add in the fact that states change regulations monthly, and managing sales tax becomes a heavy lift. 

That's why we built Kintsugi Intelligence: a suite of AI-powered capabilities that blend rule-based precision with machine learning insights to power intelligent automation. The result: compliance-critical workflows that are predictable, transparent, and fully auditable.

Automating Workflows

There's a common misconception when it comes to sales tax calculation: many people think that the more AI is embedded into a platform, the more accurate it is. 

Large language models are powerful tools, but they're designed to predict likely outcomes based on patterns in training data. When it comes to sales tax compliance, “likely” isn’t enough. It might be able to get close to the answer, but can make critical errors along the way – errors that cost tens of thousands of dollars. 

Sales tax calculation works on precise, legally defensible rules that change constantly across 50 states and 100+ countries as often as every month.  That's why Kintsugi does not use AI or LLMs to perform tax calculations. While AI automates much of the workflow, all critical outputs are reviewed and approved by humans to ensure accuracy and reliability. We apply AI where it excels, and keep humans in control where judgment matters most.

Where AI Works Hardest at Kintsugi

Product Classification

Accurate tax calculation starts with accurate product classification. Kintsugi Intelligence uses inputs from users and transaction data to automatically tag the correct product categories for thousands of products in seconds. When new products come in, AI flags them and suggests the right categorization. 

Real-Time Nexus Monitoring

Kintsugi continuously monitors for new tax obligations across 110,000+ cities, 3,100+ counties, 50 states, and beyond, scraping and tracking law changes using ML agents that update tax rules, rates, nexus thresholds, and registration requirements on an hourly and daily basis. The moment you trigger nexus in a new jurisdiction, you'll know.

Dynamic Tax Research

Kintsugi Intelligence monitors tax authority sites for law and rule changes, then drafts updates to rates, taxability rules, exemptions, and thresholds, all of which are reviewed and approved by Kintsugi's human tax researchers before going live. AI keeps the rules current; a deterministic, rule-based engine computes the actual per-transaction tax amount in a transparent, auditable way.

Predictive Analytics

Kintsugi Intelligence uses predictive analytics to anticipate future tax risks and compliance needs so businesses can act before there's a problem, not after a notice arrives.

Automation of Filing and Remittance

AI cleans and structures the data that feeds filings, and keeps rules up to date. Once rules and data are in place, AI informs the orchestration of filing and remittance, while deterministic workflows handle the actual submission of returns and payments, including automated remittance alongside every filing.

Security and Data Handling

Kintsugi uses trusted providers like OpenAI and Amazon Bedrock under strict data protection agreements, sharing only the minimum data needed to power AI features. All AI processing is secured under our existing privacy and security controls. AI assists with normalization, classification, and intelligence; compliance-critical workflows stay deterministic and fully auditable.

Make AI and Sales Tax Work for You

Now more than ever, AI is essential for managing sales tax for ecommerce and SaaS companies — because it addresses the complexity, scale, and constant change inherent in modern tax compliance. The companies that handle compliance best don't just automate more. They automate smarter, keeping humans in the loop for every decision that matters.