Allow you to specify the tax on an invoice rather than have Xero calculate it
The system I use for generating invoices calculates tax on the subtotal rather than each line as Xero does. Because Xero applies rounding to 2dp on each line items tax total then sometimes the total tax does not match my system. I need to be able to enter invoices so the totals match my system
9
votes

When you include the optional TaxAmount element on line items Xero will use your value rather than re-calculating it.