Internet retailer Amazon.com Inc.’s main German operating unit paid just 11.9 million euros ($16 million) in tax in 2014, despite the group recording $11.9 billion in sales to German customers last year, regulatory filings show. Germany is Amazon’s biggest market outside North America, its annual report shows, but until recently all sales and almost all profits were reported via lightly taxed Luxembourg companies. Amazon’s main German operating unit, Amazon.de GmbH, manages the German website and oversees deliveries but is funded by payments from the Luxembourg companies.