In Livecosts you will be given basic default tax rates for your country. If we are syncing documents it makes sense to use the Xero tax rate for these documents. Lets link a default tax rate with a Xero tax rate.
Go to the Livecosts Settings page
Click on the Tax Rates card
3. Lets link the 23% Rate to the corresponding rate in Xero, click on the orange link
4. Search for the Tax name in Xero an click on the correct result
5. Click on Link Tax Rate and thats it !