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Tax covers integrations that calculate sales tax on transactions, monitor nexus exposure, and file 1099 forms with the IRS.
  • Avalara AvaTax: real-time U.S. sales tax calculation on invoices, sales orders, cash sales, and customer credits.
  • Kintsugi: a read-only connector that pushes transactions, items, and customers to Kintsugi for nexus monitoring, exemption tracking, and returns.
  • Tax1099: file 1099-NEC, MISC, INT, and DIV forms with the IRS using vendor totals computed in DualEntry, and track acceptance status per form.
These integrations calculate and file tax; they don’t configure the tax codes and jurisdictions those calculations depend on. For that setup, see Tax Management. Return to Integrations for the full connector catalog.
Last modified on September 14, 2026