Australian fintech Afterpay Touch Group is sending its payments technology further afield, as the company outlined when presenting its results for the full financial year ended 30 June 2018.  The platform allows merchants to offer customers a "buy now, receive now, pay later" service.In line with the company's business update on 19 July 2018, highlights for FY 18 were continued strong financial performance in FY18, with group revenue and other income of A$142.3 million - an almost 400 per cent improvement on FY17.Similarly, FY18 group EBITDA (excluding significant items) of $33.8 million and EBTDA of $27.7 million, up 468 per cent and 380 per cent, respectively, on the company's FY17 results.This performance was "materially driven by the contribution of the Afterpay business," the company said in a media release. Top line Afterpay underlying sales and revenue growth have been complemented by improving transaction profitability: •    sales of over $2.18 billion, up 289 per cent on FY17;•    revenue and other income of $116.8million, up 302 per cent on FY17; and •    reduction of net transaction losses to 0.4 per cent of underlying sales in FY18 (versus 0.6 per cent in FY17), which the company said demonstrated how "customers are continuing to use the platform responsibly".The Afterpay net transaction margin increased to 2.6 per cent of underlying sales (versus 2.5 per cent in FY17), despite increased finance costs in line with Afterpay's receivables book growth.Nevertheless, accounting standards give a different view, with a group statutory net loss after tax of $9.0 million also being reported. This was a seven per cent improvement on FY17, and was posted despite the impact of large, non-cash related significant items (share based expenses and depreciation and amortisation) and one-off costs: •    non-cash share based expenses ($16.4 million), related mainly to the accounting impact of the company's share price movement since the proposed grant of the group head's LTI in August 2017, which remains subject to shareholder approval; •    non-cash D&A expenses of $17.3 million, principally related to a full year contribution of Touchcorp  and the fair value uplift of Touchcorp's intangible assets resulting from the merger; and •    one-off costs (net of FX gains) of $1.6 million, mainly related to the merger and international expansion activities.Encouraged by its continued strong performance and in Australia and New Zealand, Afterpay is continuing its expansion into international markets.The company commenced trading in the U.S. in mid May 2018. It has since stated that over 800 contracts have been signed to date, and more than 400 merchants are currently transacting on the US Afterpay platform. Over 150,000 registered US based customers have transacted to date.Afterpay has determined that the UK, as the world's third largest e-commerce market, represents the next logical step for international expansion. The company, aiming to "de-risk" this step, has made what it described as "a strategic acquisition" of UK-based buy now, pay later business ThinkSmart Limited, entering into a share purchase agreement to acquire 90 per cent of ClearPay Finance Limited in return for 1 million