Step 4 - Map tax rates
Mapping tax rates allows Magento to remember the correct tax rate in Xero when exporting transactions.
1. Go to Stores > Tax Zones and Rates
2. Go into each individual Tax Rate and under “Xero Rate” choose the appropriate Xero tax rate from the dropdown menu under Fooman Connect. Even if the correct tax rate is already shown, you still need to click Save for this to take effect.
3. It is important to map tax rates with the same effective tax rate – ie. A tax Xero rate of 15% should be matched to a Magento tax rate of 15%. Choose a tax rate on income unless you have a specific reason otherwise.
4. Repeat this for every tax rate in your store.