How to Map Procore Tax Codes in OneCore Xero

This guide explains how to map Procore tax codes to Xero within OneCore to ensure accurate tax handling when syncing financial data.

Overview

Tax mapping allows OneCore to correctly translate Procore tax codes into Xero tax rates when exporting transactions.

Supported transactions:

  • Commitment Progress Claims
  • Direct Costs

Note: If tax mapping is not configured, OneCore will use the default tax rate set on your Chart of Accounts.

Requirements

Before setting up tax mapping, ensure the following:

  • Tax Codes are enabled in Procore
  • Tax Codes are applied to the relevant projects

📌 For setup guidance in Procore, refer to:
https://v2.support.procore.com/faq-how-can-i-use-tax-codes-on-a-procore-project

Step 1: Refresh Tax Codes and Rates

To sync the latest tax data from Procore and Xero:

  1. Go to:
    OneCore → Tax → General Settings
  2. Click:
    Refresh All Tax Codes and Rates

✅ This ensures OneCore has the most up-to-date tax codes and tax rates from both systems before mapping.

Step 2: Configure Tax Mapping

Once tax codes are refreshed:

  1. Navigate to:
    OneCore → Tax → Tax Mapping
  2. For each Procore tax code:
    • Select the appropriate Xero tax rate
    • Ensure mappings are accurate to avoid posting or reporting errors
  3. Save your changes
Updated on June 29, 2026

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