TaxOptions

taxZoneStrategy

Defines the strategy used to determine the applicable Zone used in tax calculations.

taxLineCalculationStrategy

Defines the strategy used to calculate the TaxLines added to OrderItems.

orderTaxCalculationStrategy

Defines how order-level tax totals and the tax summary are calculated.

The default strategy rounds tax at the individual line level and then sums (per-line rounding). The OrderLevelTaxCalculationStrategy alternative groups net subtotals by tax rate and rounds once per group (per-total rounding), which is required by certain jurisdictions and ERP systems.