Marketplace VAT - Multi-purpose vouchers
Apologies for writing in English, but my Swedish definitely isn't up to tax-regulation-standard yet!
We're launching a marketplace app in Sweden, and will offer products (digital vouchers, redeemable at various retail locations) with varying VAT levels. E.g. one might be redeemable for sandwich (~12% moms), or a glass of wine (25% moms). Some vouchers will be multi-purpose, i.e. redeemable for various items, which will incur differing rates of VAT.
In this case, how should we handle the VAT, please? Should we charge VAT on the transaction at all, if the ultimate VAT burden is unknown at the time of the transaction?
Many thanks in advance for your response :)