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Default Product Tax Codes

Updated 31 October 2026

Setting a default tax code on a product saves time when creating invoices. You can set a different code for sales and purchases, and for each tax treatment (for example UK and rest of the world).

Set a product’s default tax codes

  1. Open the product from the Products tab in Aedon.Sales or Aedon.Purchases.
  2. Click the Product Tax Treatment & Tax Codes tab(1).
  3. The grid(2) shows the default code for each combination of sales or purchases and tax treatment. Click Edit(3), choose the tax codes and save.

The Product Tax Treatment & Tax Codes tab on a product

The codes you set are listed in Tax Treatment & Tax Codes(4), where you can also delete one.

A default can always be changed on an individual invoice line if a particular sale or purchase needs a different code.

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