A company can be profitable on paper and still run into real trouble if it can't cover what it owes when payment comes due. Current ratio and interest coverage are the two numbers built specifically to catch that risk before it becomes a headline.
Current ratio: can it cover the next 12 months?
Current Ratio = Current Assets ÷ Current Liabilities
Current assets are cash and anything reasonably convertible to cash within a year; current liabilities are bills due within that same window. A ratio above 1.0 means the company has enough on hand or coming in to cover what it owes in the near term. Below 1.0 is worth a closer look — though it's genuinely normal in some industries (retailers with fast inventory turnover, for instance) and a red flag in others, so context matters more than the raw number alone.
This is a liquidity measure — it's about the near-term, not whether the company is fundamentally healthy long-term.
Interest coverage: can it afford its own debt?
Interest Coverage = Operating Income ÷ Interest Expense
This answers a narrower, sharper question: out of the profit the business generates, how many times over could it pay the interest on its debt? An interest coverage of 10x means operating income covers interest payments ten times over — comfortable headroom. A ratio near 1x means nearly all operating profit is going straight to interest payments, leaving little room for a bad quarter before debt payments become a genuine strain.
This is a solvency measure — less about the next 12 months, more about whether the company's debt load is sustainable at all.
Why both, not just one
A company can have a healthy current ratio (plenty of cash for near-term bills) while carrying a dangerously low interest coverage ratio (a long-term debt load its operating profit barely supports) — or the reverse, comfortable long-term debt but a temporary near-term cash crunch. They're measuring different kinds of risk on different time horizons, which is exactly why looking at only one gives an incomplete picture.
The practical takeaway
Together, these two numbers are the closest thing to a financial "can this company actually survive a rough year" check — which is also why Investingg AI's Balance Sheet and Risk pillars weigh both, rather than leaning on profitability metrics alone to represent overall financial health.