We (our department of company, where I work) bought some software from USA (downloaded by internet, paid with bank order). Our accounting department now wants we get document in Czech named "daňový doklad" from US company, which is necessary by Czech tax laws (or at least our accountants want it). It's document where is stated, what was bought, how many money was paid and name, address, date of transaction and tax identification informations both about seller and buyer. What is correct English term for this document, please? Thanks.