FRANKFURT, Oct 11 (Reuters) - German online bank N26, which is being monitored by German financial regulators, on Tuesday reported a wider loss for 2021 and a slowing in customer growth, capping a year of setbacks for one of Europe's most valuable fintechs. The Berlin-based bank's 2021 loss increased to 172 million euros ($167.10 million), from a 151 million euro loss in 2020. It added one million new customers last year, down from the two million customers that were added in the previous year. N26, founded in 2013, was valued at more than $9 billion after it completed a $900 million fundraising round in 2021. Of its 8 million customers, 3.7 million are generating revenue, it said.

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