Supplier Tax classification code (tax and reporting )

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Background

We utilize  a Supplier  " one time vendor "  for Customer rebates.

These rebates are non taxable.

Question

Is there any way to  default the Tax classification  field  under the Supplier  Tax and reporting  , to  auto Populate ( default) t  to the Invoice Line  distribution Tax classification Code   to invoke the Tax exempt code.

Any comments  are appreciated