QuickBooks: Read a bill — response body — Bill Txn Tax Detail

Read a bill: response body, field Bill / TxnTaxDetail. Complete fields and constraints for contract 2026-10-20.

API reference · Contract 2026-10-20

SDK schema: Read a bill — response body — Bill Txn Tax Detail

Field	Type	Presence	Description and constraints
`$`	object	Root	Additional keys: allowed
`TaxLine`	array	Optional
`TaxLine[]`	Model	Each item	Expand Read a bill — response body — Bill Txn Tax Detail Tax Line item
`TotalTax`	JSON	Optional	Total tax calculated for the transaction, excluding any tax lines manually inserted into the transaction line list. Decimal string
`TotalTax (anyOf 1)`	JSON	Alternative
`TotalTax (anyOf 1) (anyOf 1)`	number	Alternative
`TotalTax (anyOf 1) (anyOf 2)`	string	Alternative	Pattern: ^-?[0-9]+(?:.[0-9]+)?(?:[eE][+-]?[0-9]+)?$
`TotalTax (anyOf 2)`	string	Alternative
`TxnTaxCodeRef`	Model	Optional	Expand Read an item — response body — Item Class Ref Reference to the transaction tax code. Query the TaxCode name list resource to determine the appropriate TaxCode object for this reference. Use TaxCode.Id and TaxCode.Name from that object for TaxCodeRef.value and TaxCodeRef.name , respectively. If specified and sales tax is disabled ( Preferences.TaxPrefs.UsingSalesTax is set to false ), this element is ignored and not returned. For sales transactions, only: if automated sales tax is enabled ( Preferences.TaxPrefs.PartnerTaxEnabled is set to true ) the supplied transaction tax code is replaced by the automated sales tax engine recommendation.