Today we'll take a closer look at Entergy Corporation (NYSE:ETR) from a dividend investor's perspective. Owning a strong business and reinvesting the dividends is widely seen as an attractive way of growing your wealth. If you are hoping to live on the income from dividends, it's important to be a lot more stringent with your investments than the average punter.

In this case, Entergy likely looks attractive to investors, given its 3.1% dividend yield and a payment history of over ten years. We'd guess that plenty of investors have purchased it for the income. When buying stocks for their dividends, you should always run through the checks below, to see if the dividend looks sustainable.

Explore this interactive chart for our latest analysis on Entergy!

Payout ratios

Companies (usually) pay dividends out of their earnings. If a company is paying more than it earns, the dividend might have to be cut. Comparing dividend payments to a company's net profit after tax is a simple way of reality-checking whether a dividend is sustainable. Entergy paid out 70% of its profit as dividends, over the trailing twelve month period. A payout ratio above 50% generally implies a business is reaching maturity, although it is still possible to reinvest in the business or increase the dividend over time.

Another important check we do is to see if the free cash flow generated is sufficient to pay the dividend. Last year, Entergy paid a dividend while reporting negative free cash flow. While there may be an explanation, we think this behaviour is generally not sustainable.

Is Entergy's Balance Sheet Risky?

As Entergy has a meaningful amount of debt, we need to check its balance sheet to see if the company might have debt risks. A quick check of its financial situation can be done with two ratios: net debt divided by EBITDA (earnings before interest, tax, depreciation and amortisation), and net interest cover. Net debt to EBITDA is a measure of a company's total debt. Net interest cover measures the ability to meet interest payments. Essentially we check that a) the company does not have too much debt, and b) that it can afford to pay the interest. Entergy has net debt of 6.20 times its EBITDA, which implies meaningful risk if interest rates rise of earnings decline.

We calculated its interest cover by measuring its earnings before interest and tax (EBIT), and dividing this by the company's net interest expense. With EBIT of 2.52 times its interest expense, Entergy's interest cover is starting to look a bit thin. High debt and weak interest cover are not a great combo, and we would be cautious of relying on this company's dividend while these metrics persist.

Remember, you can always get a snapshot of Entergy's latest financial position, by checking our visualisation of its financial health.

Dividend Volatility

From the perspective of an income investor who wants to earn dividends for many years, there is not much point buying a stock if its dividend is regularly cut or is not reliable. Entergy has been paying dividends for a long time, but for the purpose of this analysis, we only examine the past 10 years of payments. During this period the dividend has been stable, which could imply the business could have relatively consistent earnings power. During the past ten-year period, the first annual payment was US$3.00 in 2009, compared to US$3.64 last year. Dividends per share have grown at approximately 2.0% per year over this time.

Dividends have grown relatively slowly, which is not great, but some investors may value the relative consistency of the dividend.

Dividend Growth Potential

While dividend payments have been relatively reliable, it would also be nice if earnings per share (EPS) were growing, as this is essential to maintaining the dividend's purchasing power over the long term. Earnings have grown at around 5.2% a year for the past five years, which is better than seeing them shrink! Earnings per share are growing at an acceptable rate, although the company is paying out more than half of its profits, which we think could constrain its ability to reinvest in its business.

We'd also point out that Entergy issued a meaningful number of new shares in the past year. Regularly issuing new shares can be detrimental - it's hard to grow dividends per share when new shares are regularly being created.

Conclusion

Dividend investors should always want to know if a) a company's dividends are affordable, b) if there is a track record of consistent payments, and c) if the dividend is capable of growing. First, we think Entergy has an acceptable payout ratio, although its dividend was not well covered by cashflow. Second, earnings growth has been mediocre, but at least the dividends have been relatively stable. While we're not hugely bearish on it, overall we think there are potentially better dividend stocks than Entergy out there.

Companies that are growing earnings tend to be the best dividend stocks over the long term. See what the 8 analysts we track are forecasting for Entergy for free with public analyst estimates for the company.

Looking for more high-yielding dividend ideas? Try our curated list of dividend stocks with a yield above 3%.

We aim to bring you long-term focused research analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material.

If you spot an error that warrants correction, please contact the editor at editorial-team@simplywallst.com. This article by Simply Wall St is general in nature. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. Simply Wall St has no position in the stocks mentioned. Thank you for reading.