Post Taxes: Calculate Tax on Retainage
This field is enabled only if you selected to post taxes on invoices (On Invoices box checked).
Check this box to include retainage in tax calculations on invoices (in AR) and progress billings (in JB). Retainage will be included in the tax basis and the full tax amount updated to the tax payables account (the Credit GL Account specified in HQ Tax Codes, Info tab) when the invoice is posted.
Leave this box unchecked to exclude retainage from tax calculations on invoices and progress billings.