About the Tax System Interface

The Tax System Interface is used by customers who require external taxing software to handle the computing of sales tax. Currently the Tax System Interface supports these products:

Vertex Sales Tax Q Series version 4.1
Vertex Indirect Tax O Series versions 7.0, 8.0, 9.0
Taxware Sales/Use Tax System version 3.30
Taxware Enterprise
Avalara AvaTax

The interface is installed as an optional module and licensed separately. For more information, see the appropriate installation and licensing guides.

Note:

Avalara AvaTax and Vertex O are the only tax systems that are supported in a multi-tenant cloud implementation of SyteLine.
For AvaTax users, tax credits cannot be applied to consolidated invoices using the Tax Interface Tax Credit form.