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Avalara Help Center

Manage Taxability of Products and Services

Apply tax codes to manage item taxability. Assigning product and product categories to items gives you important jurisdictional subtlety in taxability. Avalara has predefined system tax codes with a taxability profile in place for all US states. Or, create your own custom tax codes and tax rulesHoverTT.png in the Admin Console. Keep in mind that Avalara updates system tax codes when taxability rules change, but custom tax codes and rules are maintained by you; they're not updated when tax laws change. Also, make sure you enable nexus in the jurisdictions where you're required to register and collect tax so AvaTax calculates the full tax amount.

Map items to tax codes

  • A tax code is a unique code for similar products, services, or charges that tells AvaTax what kind of sales tax, if any, to charge for them. To learn more about tax codes and how to use them, read what is a tax code? 
  • It's a best practice to map items to tax codes in your accounting software. Find your integration to learn how to map tax codes in your accounting system.
  • If you can't pass a tax code from the item management screen, or if you need a remotely-hosted mapping system to accommodate multiple integrations, map the items to tax codes in the Admin Console.
  • If you map in your accounting software and the Admin Console, the Admin Console mapping supersedes any mapping in your accounting software.
How Do I Map Tax Codes - Final.png


  1. In Sage 500 in the AvaTax folder under Maintenance, click Maintain Item Tax Code Mapping.
  2. Next to Item ID, select an item code.
  3. Next to Tax Code ID, select a tax code.
  4. Next to User Defined Field 1 and User Defined Field 2, type any additional information that you want to report on in AvaTax for the item.
  5. At the upper left, click the Save Sage500_Save_icon.png icon.