Calculate sales tax in real time with rooftop accuracy across all US jurisdictions and 70+ countries.
Calculate precise, rooftop-accurate tax rates at checkout, down to the state, county, city, and special district level.
Numeral’s team of expert tax lawyers leverages AI to continuously maintain and update global rate tables.
Power global operations across 70+ countries with built-in support for marketplaces, merchants of record, and payment processors.
Validate customer VAT IDs live during checkout to ensure international B2B compliance.
Numeral delivers instant tax calculations at enterprise scale without slowing down checkout conversion.
Process tax calculation requests with 140ms p95 latency.
Remove rate limits upon request to handle high-volume transaction spikes effortlessly.
Connect directly to your billing stack using flexible integration options.
Launch quickly with pre-built integrations for leading billing and commerce platforms.
Build directly using a clean REST API, official SDKs, and comprehensive technical documentation.
Log cleared transactions automatically to feed seamless downstream filings and return preparation.
Numeral has the industry leading AI-native tax engine that calculates accurate sales tax rates in all of our markets. Numeral makes sales tax compliance something we don't have to stress about.
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Our API documentation is available here.
You’ll first want to book a demo with a member of our team. After that, you can generate test API keys from your dashboard to integrate and test the API functionalities.
Users can choose from three available SDKs: Java, Python, and Ruby. We have documentation for direct integration with our public endpoint if you have a different technology stack.
We support tracking the currencies used for Customer Currency, Filing Currency, and Functional Currency.
Shipping and handling charges should be treated as their own distinct products and line items. When it’s time to calculate taxes, you can pass the shipping costs as another line item to the tax/calculations endpoint.
