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Website Tax compliance for businesses of all sizes

What is Avalara?

Avalara is software for online businesses to automate tax compliance. Navigate rapidly changing sales tax rates and rules with Avalara’s advanced tax software that integrates with your online store and any other existing business applications your business has. Avalara delivers automated, cloud-based solutions for transaction tax compliance across the U.S. and throughout the world – no matter your business size or industry – that are fast, accurate and easy to use.

Avalara Products & Services

Compliance slipups are costly. Automate in key areas with interconnected solutions for calculation, filing, and exemptions – and get compliance right. Browse below to find the tax tools for your website, no matter your business size or industry. Our tax calculation, tax filing, and tax document management products work together seamlessly for integrated, automated compliance done right.

AvaTax Sales & Use Tax

AvaTax Sales & Use Tax

Dynamically delivers sales and use tax and VAT calculations, based on the latest rules and rates in our system, to your shopping cart or invoicing system at the time of purchase.

Returns Sales & Use

Returns Sales & Use

Automatically gathers data from AvaTax to prepare and file your sales and use tax returns, and remit payments, across multiple jurisdictions every filing cycle.



A sales tax return preparation and filing service designed specifically for ecommerce sellers, especially those dealing with the complexities of multistate compliance.

Returns Excise

Returns Excise

Determines your applicable taxes, generates schedules and returns, and handles filing and payments for all major excise reporting jurisdictions in the U.S. and Canada.

Nexus analysis

Tax Nexus analysis

Knowing where to collect sales tax is critical, but it’s harder than ever with new laws and changing legislation. A thorough analysis of your sales activity will help identify where you have nexus, i.e., sales tax responsibilities.

Sucessful Stores Use Avalara

“The same process that took us a few weeks in the past, now takes just a couple of days and we all know that time is money.”

- Shari Beaver, Avalara AvaTax user

Benefits of using Avalara

Join the thousands of Shift4Shop merchants that utilize the Avalara AvaTax sales tax software to eliminate manual sales tax compliance efforts. Learn how Avalara AvaTax makes sales tax less taxing with:

  • Fast real-time calculations
  • Accurate tracking rates, rule changes, and tax holidays (backed by the Avalara Guarantee)
  • Seamless integrations with existing business systems (over 650 integrations)
  • Technology that is scalable for your company’s needs
  • Simplified sales tax compliance for businesses of all sizes (whether you’re just starting out, or are an established global retailer)

How to integrate Avalara in your online store

Shift4Shop and Avalara have partnered to provide automatic sales tax calculations within your cart, streamlining the tax compliance process while saving time, reducing errors, and cutting costs. Avalara AvaTax works with an extension that plugs into Shift4Shop, so you get an accurate tax calculation automatically on every shopping cart checkout.

With a certified integration to AvaTax, Shift4Shop customers can be up and running in minutes. Join many small businesses who use the leader in sales tax automation and do sales tax right.

Sell Online with Avalara's Certified eCommerce Solution