&gt; Both companies are vying for dominance of the rapidly growing cross-border e-commerce market, which by 2020 is expected to swell into a $1 trillion industry serving 900 million shoppers, according to a June report from Accenture and AliResearch, Alibaba’s research arm.<p>$1 trillion ecomm market.<p>&gt; If the logistics business takes hold, financial services could follow, with Amazon giving loans to merchants, processing international payments and consulting its network of sellers on customs and tax matters.<p>Today, Amazon FBA Merchants get zero help for Sales Tax, as Amazon pushes all liability onto the individual merchants. Why would this be different for cross-border taxes?