trivago N.V. (NASDAQ:TRVG) just reported some strong earnings, and the market reacted accordingly with a healthy uplift in the share price. However, we think that shareholders may be missing some concerning details in the numbers.

Examining Cashflow Against trivago's Earnings

Many investors haven't heard of the accrual ratio from cashflow, but it is actually a useful measure of how well a company's profit is backed up by free cash flow (FCF) during a given period. To get the accrual ratio we first subtract FCF from profit for a period, and then divide that number by the average operating assets for the period. You could think of the accrual ratio from cashflow as the 'non-FCF profit ratio'.

Therefore, it's actually considered a good thing when a company has a negative accrual ratio, but a bad thing if its accrual ratio is positive. While having an accrual ratio above zero is of little concern, we do think it's worth noting when a company has a relatively high accrual ratio. To quote a 2014 paper by Lewellen and Resutek, "firms with higher accruals tend to be less profitable in the future".

Over the twelve months to June 2026, trivago recorded an accrual ratio of -0.42. That indicates that its free cash flow quite significantly exceeded its statutory profit. To wit, it produced free cash flow of €39m during the period, dwarfing its reported profit of €13.1m. trivago shareholders are no doubt pleased that free cash flow improved over the last twelve months. Importantly, we note an unusual tax situation, which we discuss below, has impacted the accruals ratio.

That might leave you wondering what analysts are forecasting in terms of future profitability. Luckily, you can click here to see an interactive graph depicting future profitability, based on their estimates.

An Unusual Tax Situation

Moving on from the accrual ratio, we note that trivago profited from a tax benefit which contributed €4.9m to profit. This is of course a bit out of the ordinary, given it is more common for companies to be paying tax than receiving tax benefits! The receipt of a tax benefit is obviously a good thing, on its own. And given that it lost money last year, it seems possible that the benefit is evidence that it now expects to find value in its past tax losses. However, the devil in the detail is that these kind of benefits only impact in the year they are booked, and are often one-off in nature. Assuming the tax benefit is not repeated every year, we could see its profitability drop noticeably, all else being equal. So while we think it's great to receive a tax benefit, it does tend to imply an increased risk that the statutory profit overstates the sustainable earnings power of the business.

Our Take On trivago's Profit Performance

While trivago's accrual ratio stands testament to its strong cashflow, and indicates good quality earnings, the fact that it received a tax benefit suggests that this year's profit may not be a great guide to its sustainable profit run-rate. Based on these factors, it's hard to tell if trivago's profits are a reasonable reflection of its underlying profitability. So if you'd like to dive deeper into this stock, it's crucial to consider any risks it's facing. For example, we've discovered 1 warning sign that you should run your eye over to get a better picture of trivago.

In this article we've looked at a number of factors that can impair the utility of profit numbers, as a guide to a business. But there is always more to discover if you are capable of focussing your mind on minutiae. Some people consider a high return on equity to be a good sign of a quality business. While it might take a little research on your behalf, you may find this free collection of companies boasting high return on equity, or this list of stocks with significant insider holdings to be useful.

This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.