Originally Posted by
Bob'sYourUncle
Heads up though that normally you need to have your forms stamped at the time you part with your luggage. If you're only transiting through MUC, it is highly unlikely that German customs will stamp your forms without the goods present for potential inspection.
Normally EU-countries' customs will stamp your forms at your departure airport if your final and immediate destination is outside the EU.
Note that the above does not apply to carry-on. In this case, you *will* get the stamp in MUC during your transit.
In my experience the majority of goods are carried as hand luggage, as such 'normally' it is at last transit point.
Do also note that customs will not 'part certify' a form, so if you are exporting goods from the same shop, it will usually be a problem if they are split between cabin and hold luggage.
However, at the sametime most shops charge and admin fee (or rather, their outsourced refund company does), therefore getting as much as possible onto 1 refund form is good for keeping down the admin fees, just note that they need to be presented together and travel either cabin or hold together.