About this guide

Welcome to the Avalara 1099 & W-9 integration guide. This guide describes the steps to follow to integrate Avalara 1099 & W-9 into your system. We've broken these steps down into individual milestones in the order that you should complete them.

For technology partners, several milestones include a certification requirements section for you to learn quickly what you need to accomplish to earn an Avalara 1099 & W-9 badge. The badge requirements are broken down into the following types:
- Required: We require you to include this design element to become certified.
- Conditional: Depending on your use case, this design element may be required.
- Suggested: You don't need this design element to become certified, but we recommend that your UI includes suggested elements.
Certification doesn’t entail a code review from Avalara. The requirements are provided to help you create an integration that’s straightforward and uncomplicated for your users and to help ensure that your integration is tax-compliant.
For API customers, we recommend that you follow this guide when using Avalara 1099 & W-9 APIs in your own systems.

Need help with getting started? Check out the Quick reference for 1099 integration page for a walkthrough of the key features and how to get started.

Notice

The information provided in this Integration Guide is based on standard practices. It’s up to each individual developer to determine the applicability of such information and to verify the functionality and use of the information. All information, including examples of code, is provided on an As-is basis. Use of Avalara's website is covered by Avalara's site terms located here: https://www.avalara.com/us/en/legal/site-terms.html.