Avalara Launches New APIs to Automate 1099 & W-9 Compliance Across Business Platforms

02 June 2025 | Monday | News

By embedding compliance workflows directly into ERPs, accounting, ecommerce, and marketplace systems, Avalara’s latest API suite streamlines tax form management—saving time, reducing risk, and transforming manual tasks into automated, end-to-end processes.
Picture Courtesy | Public Domain

Picture Courtesy | Public Domain

Avalara, Inc., a leader in modern tax compliance automation, announced the launch of new APIs for its 1099 & W-9 solution. These APIs enable companies to seamlessly embed 1099 and W-9 compliance workflows into their existing ERP, accounting, ecommerce, or marketplace platforms — transforming manual, time-consuming processes into a streamlined, fully automated system.

 

With Avalara's new API advances, businesses can automate even more of the end-to-end process to achieve greater time savings and more efficient resource allocation, directly from an ERP, accounting, ecommerce or marketplace platform. Here's how it works:

It all starts with a company's business platform: With Avalara's APIs, a business's ERP, accounting or other platform can transmit both requests for W-9s from vendors and payee data with instructions for processing their IRS forms to Avalara. These custom instructions determine whether to have Avalara match tax IDs with the IRS, validate recipient addresses, e-file to states, or other actions.

Avalara brings a business, associated vendors, and the IRS together: With a company's vendor and payee details securely in hand, Avalara's automated system executes the many time-consuming steps of W-9 and 1099 compliance on their behalf. The custom instructions originating in that company's ERP, accounting, ecommerce or marketplace platform determine each step of the compliance workflow.

Auto-delivery of IRS status updates: With Avalara's APIs controlling the flow of data, the status of a company's IRS filings can be transmitted all the way back to their business platform where everything began. They can program these status updates to trigger many potential actions in their system, such as text alerts or additional vendor communications.

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