CFA Level I Exam · Financial Analysis Techniques

Credit Analysis and Limitations of Ratio Analysis

Updated 7 October 2026 · Fact-checked

Credit analysis uses ratios to judge whether a borrower can pay interest and repay debt, focusing on leverage, coverage, liquidity and cash flow. Ratio analysis has limits: firms differ in accounting policies, business mix and year-ends, and ratios are historical. To solve questions, check comparability first, then compute, then interpret.

Understand Credit Analysis and Limitations of Ratio Analysis

A ratio compares two numbers from the financial statements. On its own it means little. It becomes useful when you compare it with the firm's past, with peers, or with a benchmark.

Equity analysts and credit analysts use the same ratios for different questions. An equity analyst asks whether earnings and cash flow will grow and support the share price. A credit analyst asks whether the firm can pay interest and repay principal on time. So a credit analyst focuses on leverage (debt ÷ equity, debt ÷ EBITDA), coverage (EBIT ÷ interest, EBITDA ÷ interest), liquidity (current ratio, quick ratio) and cash flow (CFO ÷ total debt). Lenders care about downside protection. They gain nothing if the firm does much better than expected.

Ratios also help with forecasting. Analysts take past ratios such as gross margin, receivable days or capex as a share of sales, judge whether they will persist, and apply them to projected sales to build forecast statements. Past ratios are a starting point. You adjust them for expected changes in strategy, competition and the economy.

Ratio analysis has real limitations. Firms use different accounting choices, such as FIFO versus LIFO or different depreciation methods, so ratios are not always comparable. Under IFRS and US GAAP, choices and estimates differ. Firms with several business lines may have no clean peer. Year-ends may differ, and seasonal firms can look different at different dates. Ratios use balance sheet values at a single date and may not reflect the average. Management can window-dress. Off-balance-sheet items can hide debt. Finally, a ratio has no universal good or bad value. You must judge it within the industry and context, and look at several ratios together.

Key formulas to remember

Debt-to-equity: Total debt ÷ Total shareholders' equity; Leverage measure. Check whether the question defines debt as total debt or total liabilities.
Debt-to-EBITDA: Total debt ÷ EBITDA; Common credit leverage measure. Higher means weaker credit quality.
Interest coverage: EBIT ÷ Interest expense; Shows how many times operating profit covers interest. Higher is safer.
EBITDA interest coverage: EBITDA ÷ Interest expense; Always at least as high as EBIT coverage when D&A is positive.
Fixed charge coverage: (EBIT + Lease payments) ÷ (Interest + Lease payments); Use the version the question gives. Definitions vary.
Cash flow to debt: CFO ÷ Total debt; Cash-based measure of repayment capacity.
Current ratio: Current assets ÷ Current liabilities; Short-term liquidity measure.
Quick ratio: (Cash + Marketable securities + Receivables) ÷ Current liabilities; Stricter liquidity test that excludes inventory.

How to solve Credit Analysis and Limitations of Ratio Analysis questions

Use this order for any question on credit ratios, forecasting use or ratio limitations.

1Identify the user and the purpose: a lender (credit) or a shareholder (equity), or a forecaster. This tells you which ratios matter.
2Read the definitions in the stem. If the stem defines debt, EBIT or coverage, use that definition.
3Check comparability: do the firms use different accounting methods, year-ends, business mixes or currencies?
4Compute the ratio using the given numbers, and keep the units consistent.
5Interpret direction: higher leverage and lower coverage mean weaker credit quality.
6Match the conclusion to the limitation or use asked about, and eliminate options that overstate what a ratio proves.
7Choose the option that is conditional and balanced rather than absolute.

Quickest way: Direction and wording check

When to use it: Use this for conceptual questions about limitations, uses or interpretation, where no calculation is needed.

Decide the direction: more debt or less coverage means more credit risk.
Cross out any option that says a ratio always, never or alone proves something.
Prefer the option that cites a specific cause, such as different accounting policies, different year-ends or a diversified business mix.
If a calculation is needed, do it once and check that the size makes sense before choosing.

Common mistakes in Credit Analysis and Limitations of Ratio Analysis

Treating a ratio as good or bad without a benchmark.
Students memorise rules of thumb such as a current ratio above 2.
Fix: Always compare to the firm's history, peers and industry norms before judging.
Using EBITDA coverage when the question asks for EBIT coverage.
Both ratios look similar and both have interest in the denominator.
Fix: Underline the numerator the question names before you start.
Assuming differences in accounting policies do not affect ratios.
Students focus on the arithmetic only.
Fix: Ask whether inventory, depreciation or lease treatment differs. If yes, comparability is limited.
Reading a lower debt-to-equity ratio as always better for a lender and equity holder alike.
Confusing the two users' interests.
Fix: Lenders value lower leverage as safety. Equity holders may accept more leverage for higher returns.
Forecasting by holding all past ratios constant.
It is simple and looks consistent.
Fix: Adjust past ratios for expected changes in pricing, costs, strategy and the economy.
Ignoring off-balance-sheet items and year-end timing.
Ratios are computed from reported numbers that look complete.
Fix: Consider whether hidden obligations, seasonality or window dressing distort the reported figures.

Worked examples

Example 1

A company reports EBIT of $240 million, depreciation and amortisation of $60 million, interest expense of $40 million and total debt of $900 million. Which option gives the EBITDA interest coverage and debt-to-EBITDA ratios? A) 6.0x and 3.0x B) 7.5x and 3.0x C) 7.5x and 3.75x

Show the solution

EBITDA = EBIT + D&A = 240 + 60 = $300 million.
EBITDA interest coverage = 300 ÷ 40 = 7.5x.
Debt-to-EBITDA = 900 ÷ 300 = 3.0x.
Option A uses EBIT for coverage (240 ÷ 40 = 6.0x), which is the wrong numerator.
Option C uses EBIT for the leverage ratio (900 ÷ 240 = 3.75x), also wrong.

Answer: B) 7.5x and 3.0x

Example 2

An analyst compares two retailers. Retailer X uses LIFO and has a fiscal year ending in December. Retailer Y uses FIFO and has a fiscal year ending in June. Which is the best statement about comparing their current ratios? A) The ratios are directly comparable because both are retailers B) Comparability is limited by different inventory methods and different year-end dates C) The ratios are not useful at all

Show the solution

Option A ignores accounting differences. Inventory is part of current assets, and LIFO versus FIFO changes its reported value.
Different year-ends mean the balance sheets are taken at different points of the seasonal cycle.
Option C overstates the problem. Ratios still have value if adjusted or interpreted with care.
Option B names specific causes and does not overstate.

Answer: B) Comparability is limited by different inventory methods and different year-end dates

Exam tips

Questions often test conceptual limitations. Pick the answer that names a specific cause and avoids absolutes.
For credit ratios, confirm the numerator and denominator from the stem before calculating. Wrong-numerator options are common distractors.
Remember the user's viewpoint: lenders focus on downside and repayment, equity investors on growth and returns.
With three options and no penalty, eliminate any option using always or never, and guess among the rest if time is short.
For quick calculations, a simple division on any calculator is enough. Spend your time on definitions.

Practice questions from Financial Analysis Techniques

Credit Analysis and Limitations of Ratio Analysis in other exams

The same ground in other exams, if you are preparing for more than one or want another angle on it.

Credit Analysis and Limitations of Ratio Analysis: frequently asked questions

What are the main limitations of ratio analysis in CFA Level I?

Different accounting policies and estimates reduce comparability. Diversified firms lack clean peers, year-ends and seasonality distort balance sheet values, and ratios are historical. Ratios also have no universal good or bad value, so you must judge them in context.

Which ratios matter most in credit analysis?

Credit analysts focus on leverage (debt to equity, debt to EBITDA), coverage (EBIT or EBITDA to interest), liquidity (current and quick ratios) and cash flow measures such as CFO to debt. Always use the definitions given in the question.

How do ratios help in forecasting financial performance?

Analysts take historical ratios such as margins, turnover and capex to sales, then adjust them for expected changes and apply them to projected sales. This builds forecast financial statements. Blindly holding ratios constant is a weakness.

How should I practise this topic?

Do several short questions on coverage and leverage until the formulas are automatic. Then practise conceptual items by naming the specific limitation each option describes. Review wrong answers by identifying the trap.