Hi Sam I dont specifically cos all my clients are just in sterling at the mo, but you could just set up a separate nominal code anyway so you can monitor them. My client sells via Amazon and Ebay so I use a different code for each.
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Joanne
Winner of Bookkeeper of the Year 2015, 2016 & 2017
Thoughts are my own/not to be regarded as official advice,which should be sought from a suitably qualified Accountant.
You should check out answers with reference to the legal position