Which receipts do I need to claim VAT back?

An invoice or receipt with VAT details from the purchase country

You always need the original proof of purchase from the country where you fuelled, stayed, tolled, exhibited or dined: an invoice or receipt showing the supplier, the VAT amount and the VAT rate of that country. A till receipt is sufficient for smaller amounts, provided it contains the information that the Member State of refund itself requires — what exactly this is varies by country and is set out in the Requirements list of the Tax and Customs Administration. A Dutch invoice, or a receipt without VAT specification, cannot be used for this refund: this concerns foreign VAT, so the proof must come from abroad and explicitly show the foreign VAT.

Per cost category, additional requirements may apply, for example a minimum amount per invoice above which a country includes the purchase