How we show discounts on invoices

We've put a bit of thought into this, and realised that many sites would be using one of several discount voucher tools or discount coupons.

The integration tool will compare the prices of products in the database with the final invoice total - and if there is a discrepancy, will insert a line in the Kashflow invoice showing a discount.

If you are not registered for VAT, then that's where it ends for you.

If your store is registered for VAT, then it gets a bit more complicated.

The default setting for the discount voucher is to include VAT. That means a £10 voucher would be shown on the invoice as £8.70 plus VAT.

You can turn off this setting in admin, and the voucher will be shown as being zero rated for VAT.

By doing it this way we ensure the voucher always comes off the main products - and not the delivery - which is often zero rated for VAT if stores use Royal Mail.

The only issue is that the Kashflow invoice and the OSCommerce invoice may show different VAT amounts - although the totals will be the same.

Would be useful to get store owners' feedback on this.