Tax expense account not picked up for intercompany (PA_IC_INVOICES) AP invoices non-recoverable tax

We are using a tax recovery rule in E-Business tax to identify tax on intercompany invoices as non-recoverable.  When these invoices are imported into AP, they are not picking up the tax expense account which has been defined in the Tax Rate Setup.  If I enter a manual invoice into AP using the same supplier and the same distribution account, it picks up the correct tax expense account on the Non-Recoverable tax line.