The external fund manager backed by Berkshire Hathaway's Charlie Munger, Li Lu, makes no bones about it when he says 'The biggest investment risk is not the volatility of prices, but whether you will suffer a permanent loss of capital.' So it seems the smart money knows that debt - which is usually involved in bankruptcies - is a very important factor, when you assess how risky a company is. As with many other companies The AZEK Company Inc. (NYSE:AZEK) makes use of debt. But the more important question is: how much risk is that debt creating?

When Is Debt A Problem?

Generally speaking, debt only becomes a real problem when a company can't easily pay it off, either by raising capital or with its own cash flow. Ultimately, if the company can't fulfill its legal obligations to repay debt, shareholders could walk away with nothing. While that is not too common, we often do see indebted companies permanently diluting shareholders because lenders force them to raise capital at a distressed price. Of course, plenty of companies use debt to fund growth, without any negative consequences. The first thing to do when considering how much debt a business uses is to look at its cash and debt together.

What Is AZEK's Debt?

As you can see below, AZEK had US$583.0m of debt, at June 2024, which is about the same as the year before. You can click the chart for greater detail. On the flip side, it has US$348.4m in cash leading to net debt of about US$234.6m.

How Healthy Is AZEK's Balance Sheet?

We can see from the most recent balance sheet that AZEK had liabilities of US$214.0m falling due within a year, and liabilities of US$733.7m due beyond that. On the other hand, it had cash of US$348.4m and US$67.6m worth of receivables due within a year. So it has liabilities totalling US$531.7m more than its cash and near-term receivables, combined.

Since publicly traded AZEK shares are worth a total of US$6.58b, it seems unlikely that this level of liabilities would be a major threat. However, we do think it is worth keeping an eye on its balance sheet strength, as it may change over time.

We use two main ratios to inform us about debt levels relative to earnings. The first is net debt divided by earnings before interest, tax, depreciation, and amortization (EBITDA), while the second is how many times its earnings before interest and tax (EBIT) covers its interest expense (or its interest cover, for short). The advantage of this approach is that we take into account both the absolute quantum of debt (with net debt to EBITDA) and the actual interest expenses associated with that debt (with its interest cover ratio).

While AZEK's low debt to EBITDA ratio of 0.66 suggests only modest use of debt, the fact that EBIT only covered the interest expense by 6.8 times last year does give us pause. But the interest payments are certainly sufficient to have us thinking about how affordable its debt is. Better yet, AZEK grew its EBIT by 263% last year, which is an impressive improvement. If maintained that growth will make the debt even more manageable in the years ahead. The balance sheet is clearly the area to focus on when you are analysing debt. But it is future earnings, more than anything, that will determine AZEK's ability to maintain a healthy balance sheet going forward. So if you're focused on the future you can check out this free report showing analyst profit forecasts.

Finally, while the tax-man may adore accounting profits, lenders only accept cold hard cash. So it's worth checking how much of that EBIT is backed by free cash flow. During the last three years, AZEK produced sturdy free cash flow equating to 73% of its EBIT, about what we'd expect. This cold hard cash means it can reduce its debt when it wants to.

Our View

AZEK's EBIT growth rate suggests it can handle its debt as easily as Cristiano Ronaldo could score a goal against an under 14's goalkeeper. And the good news does not stop there, as its conversion of EBIT to free cash flow also supports that impression! Looking at the bigger picture, we think AZEK's use of debt seems quite reasonable and we're not concerned about it. While debt does bring risk, when used wisely it can also bring a higher return on equity. The balance sheet is clearly the area to focus on when you are analysing debt. But ultimately, every company can contain risks that exist outside of the balance sheet. For instance, we've identified 1 warning sign for AZEK that you should be aware of.

When all is said and done, sometimes its easier to focus on companies that don't even need debt. Readers can access a list of growth stocks with zero net debt 100% free, right now.

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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.