HomeExemption Certificate ManagementExemption Certificate ManagementOverviewAPIMCPIntegration guidesECM (AvaTax) APICertCapture RESTful APIsModelsItemHSCodePunitiveRateDetailModelRepresents HS Code Punitive Rate Details.ParametersrateRequiredstringThe rate for this punitive duty.uomRequiredstringThe unit of measure.isStackableOptionalbooleanWhether this rate is stackable with other rates.isTaxOnTaxOptionalbooleanWhether this is a tax on tax.View Example