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Avalara, Inc. is a leading provider of cloud-based tax compliance automation

Avalara helps businesses of all sizes get tax compliance right. We provide prebuilt integrations with the big-name financial and business management systems you trust, as well as a robust API for do-it-yourself business builders.

Avalara delivers cloud-based compliance solutions for transaction tax types, like sales and use, VAT, GST, excise, communications, lodging, and more. We’re headquartered in Seattle, with offices across the U.S. and in Canada, the U.K, Belgium, Brazil, and India. 

Woman looking at documents in an American warehouse

Tax compliance software for Kerridge Commercial Systems (KCS) customers


compliance risk

tax rates

company growth

Improve efficiency
and compliance

Illustration of Avalara's integration with KCS

Avalara’s integration with KCS

Avalara gives you the ability to manage sales tax easily and efficiently because it’s already built to run seamlessly in the Kerridge Commercial Systems software you rely on every day.

Avalara AvaTax provides real-time sales tax calculations — without the time-consuming effort of updating rate tables, tax schedules, or IDs, and a host of other manual tasks.

Prepared returns

Sign off on the returns we prepare, and Avalara Returns will do the rest, whether you file in the state or multiple states and local jurisdictions.

SST provider

As a certified Streamlined Sales Tax (SST) service provider, Avalara provides free tax calculations and filing in 24 states for qualified accounts.

Timely compliance

We file the required forms at the required frequency, according to a calendar you manage, for easy compliance in all your jurisdictions.


As a software-as-a-service (SaaS) solution, AvaTax updates take effect immediately, keeping your calculations current.


CertCapture gathers certificate data - including signatures - entirely online, or via scan, fax, or email.

On-demand calculations

AvaTax delivers sales tax directly into your financial system at the moment of purchase.

Product integrations

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