The Tax Amt field on the AP Unapproved Invoice Entry form, line items Info tab.
Entry in this field is not required.
Defaults an amount based on the Tax Rate (defined for tax code in HQ Tax Codes) and the Tax Basis. May be overridden.
Tax amounts posted to subcontract lines will not be included in the invoiced amount updated to SLIT (SL Items). Therefore, if you have set up a subcontract to include sales tax, it is suggested that you post invoices with the tax amount included as part of the gross amount (i.e. not posted separately here). If the subcontract is set up without tax and sales tax applies, then gross and sales tax amounts should be entered separately on the invoice line.
Tax amounts posted to a job-related SM Work Order line are included in the total billable amount for the work completed miscellaneous line generated during batch processing (in AP Transaction Entry), even though the tax code is set to blank for the work completed line. This ensures that the total amount paid to the vendor is charged to the job.