Total Interest-Bearing Debt Calculation: What Actually Counts

The debt ratio is the heart of Shariah stock screening. Every methodology uses some version of it. Every scholar agrees it's central. And yet, if you ask ten different Islamic finance professionals how to calculate "total interest-bearing debt" for a specific company, you'll get five different answers.

The disagreement isn't about whether debt matters. It's about which line items on a balance sheet count as debt for screening purposes. This sounds like accounting trivia until you realize it can flip stocks in and out of compliance.

Let me walk through what actually counts, what doesn't, and where the real controversies live.

The baseline: clearly interest-bearing debt

Everyone agrees these count:

Short-term bank borrowings
Commercial paper
Long-term bank loans
Corporate bonds issued by the company
Notes payable
Debentures
Revolving credit facility drawdowns
Senior secured debt
Subordinated debt
Term loans
Syndicated loan facilities

If you add up all these line items from a 10-K or 10-Q, you have a defensible starting number for the debt screen. For most large, simple corporations, these items represent 90%+ of what you want to capture.

The gray zones

The disagreements start when you get into less straightforward items. Let me list them with the typical scholarly positions.

Operating leases. Before 2019, operating leases were off-balance-sheet commitments disclosed only in footnotes. After ASC 842 and IFRS 16, lease obligations are recognized as liabilities on the balance sheet. Question: do these count as interest-bearing debt for Shariah screening?

The majority position is yes, they count. A lease obligation is functionally similar to debt because it represents a commitment to make payments over time with an interest component built into the payment schedule. AAOIFI has explicitly included operating lease liabilities in the debt calculation in recent guidance.

The minority position is no, because operating leases represent payments for an asset you're using (the leased premises) rather than a pure financial obligation. Some scholars argue the economic substance is different enough to exclude them.

FaithScreener uses the majority position: operating lease liabilities count toward total debt. This can meaningfully change ratios for retail chains and airlines.

Pension obligations. Defined benefit pension liabilities are debt-like in some ways. They represent commitments to pay future amounts. They accrue interest. They sit on the balance sheet as long-term liabilities.

Most scholars say pension obligations do NOT count as interest-bearing debt for Shariah screening purposes. The reasoning is that pension obligations are deferred compensation to employees, not financing from lenders. The "interest" built into pension actuarial calculations is discount-rate math, not a riba payment to an investor.

FaithScreener follows the standard approach: pension liabilities are excluded from the numerator.

Deferred tax liabilities. These are accounting constructs representing future tax payments. No interest is charged. No lender is involved. Every methodology excludes them from the debt calculation. Clear consensus: deferred taxes don't count.

Capital lease liabilities. Pre-IFRS 16, these were on balance sheet as "capital leases." Now they're combined with operating leases under the unified lease accounting standards. Capital leases have always been counted as debt under Shariah screening because they're explicitly acknowledged as financing transactions disguised as leases.

Convertible bonds. These are bonds that can convert to equity. For as long as they haven't converted, they're debt. Every methodology counts them in the numerator. Once converted, they're equity and no longer part of the ratio.

Preferred stock. Classification varies. Cumulative preferred stock that pays a fixed dividend is often treated as debt because the economic structure resembles a perpetual bond. Non-cumulative preferred with discretionary dividends is usually treated as equity. Some methodologies split this based on specific features.

FaithScreener treats mandatorily redeemable preferred stock as debt and non-redeemable as equity. Most major methodologies do the same, though with slight variations.

Finance lease receivables (asset side). Not a debt question, but worth mentioning. If a company is ON the receiving end of finance leases (they lease assets to customers), those receivables are separately classified and don't reduce the debt number.

Letters of credit and guarantees. Off-balance-sheet commitments. Generally not counted toward the debt screen because they're contingent, not drawn obligations. If they convert to actual debt when drawn, at that point they enter the calculation.

Interest rate derivatives. Not counted toward the debt number, though any negative mark-to-market might appear elsewhere on the balance sheet. Derivative exposure is a separate question that mostly doesn't affect the ratio screens.

Worked example: Apple's debt calculation

Let me run Apple's recent debt using realistic line items from its fiscal 2024 annual report (approximate).

From Apple's balance sheet:
- Commercial paper: approximately 5 billion
- Term debt (short-term): approximately 10 billion
- Term debt (long-term): approximately 85 billion
- Operating lease liabilities (short and long term): approximately 11 billion

Total interest-bearing debt under the majority methodology: 5 + 10 + 85 + 11 = 111 billion

If you exclude operating leases (minority view): 100 billion

The 11 billion difference can matter for screening. Against Apple's market cap of 3.5 trillion, the ratio is 3.17% vs 2.86%. Both comfortably pass. But for a mid-cap stock near the threshold, that same 11% lease adjustment could tip the screen.

Apple's situation is forgiving because the ratios are so far from the limit. For companies closer to the line, the lease inclusion decision is critical.

Worked example: Toyota's debt complexity

Toyota (7203.T) is where debt calculation gets painful. Toyota consolidates Toyota Financial Services, which issues its own debt to fund auto loans. The question: do the auto loans count as Toyota's debt, or only the debt Toyota borrows to fund them?

Scholars generally agree: the auto loans are receivables (on the asset side) and the funding debt is debt (on the liability side). You don't double-count. But Toyota's consolidated debt still includes all the borrowings that fund the financial services subsidiary, which is a massive number.

Approximate Toyota debt composition:
- Short-term borrowings: approximately 6 trillion yen
- Long-term debt: approximately 17 trillion yen
- Current portion of long-term debt: approximately 6 trillion yen
- Operating lease liabilities: approximately 0.5 trillion yen

Total: approximately 29.5 trillion yen

Much of this funds the Toyota Financial Services loan book. It still counts as Toyota debt for Shariah purposes because the screen looks at the consolidated entity. Toyota can't escape its financing arm by pointing at the offsetting receivables.

This is why Toyota fails Shariah screens. The debt is real, regardless of what it funds.

Worked example: Reliance Industries

Reliance (RELIANCE.NS) has a complicated capital structure with frequent bond issuances, term loans, and convertible securities. Let me sketch the composition (approximate).

Non-convertible debentures: significant
Term loans: significant
Short-term borrowings: moderate
Lease liabilities: moderate
Inter-corporate deposits: small
Foreign currency borrowings: significant

Reliance's total debt has historically ranged from 2.5 lakh crore to 3.5 lakh crore rupees. Against a market cap that ranges from 15 lakh crore to 20 lakh crore, the ratio is typically 15-20%. Passes most screens.

But during years of heavy capex (telecom build-out 2017-2019), debt rose faster than market cap, and the ratio pushed toward 25-30%. Under stricter AAOIFI interpretation with total assets as denominator, Reliance has occasionally bumped against the 30% threshold.

The accounting standards problem

Different accounting standards classify debt differently. US GAAP, IFRS, Japanese GAAP, and Chinese PRC standards all have slightly different rules for what goes where on the balance sheet. A stock screened under IFRS-based financial statements might show different debt numbers than the same stock screened under US GAAP pro forma adjustments.

For the vast majority of large companies, the differences are small. For some mid-caps with unusual capital structures, the differences can be meaningful.

FaithScreener uses whatever accounting standard the company reports under. We don't try to restate financials to a single standard because that introduces more complexity than it removes.

Gross vs net debt

Some analysts use "net debt" (debt minus cash) in their analysis. Shariah screening does NOT use net debt. The debt ratio is gross debt divided by the denominator. The cash is tested separately in the liquidity ratio. You don't net them.

Why? Because the purpose of the screen is to measure riba exposure, and gross debt is the actual riba commitment. Cash is a separate problem with its own screen. Combining them would double-dilute the constraints.

If you see an analysis using net debt for Shariah screening, that analysis is doing it wrong.

Trade payables

Trade payables (amounts owed to suppliers) are NOT counted toward the debt numerator. They're not interest-bearing. They represent the normal operational float of paying vendors after receiving goods. Every methodology excludes them.

This matters because a big manufacturing company can have tens of billions in trade payables. Including them would crush every industrial's debt ratio. Correctly excluding them preserves the ratio's meaning.

Accrued expenses and deferred revenue

Also excluded from the debt numerator. These are operating liabilities, not financing obligations. The money represents work done but not yet paid or services owed but not yet delivered. No interest. Not debt.

The consolidated vs parent-only question

Shariah screening always uses consolidated financials. You screen the parent company including all its majority-owned subsidiaries. You don't screen the parent-only statements because those hide the debt and activities of subsidiaries.

This is why Toyota's financing arm kills its Shariah rating and why Berkshire Hathaway's insurance operations make it non-compliant. Even if the parent company's statements looked clean, the consolidated financials capture the full economic entity.

The bottom line

Total interest-bearing debt sounds simple. In practice, it's a judgment call on a dozen line items. Screeners differ on operating leases, preferred stock, convertible bonds, and a few other gray zones. Those differences can matter at the margin.

If you want to replicate Shariah screening yourself from a company's 10-K, your checklist should include:

All short-term and long-term borrowings
All bonds, notes, debentures, and commercial paper
All operating lease liabilities (if following the majority view)
All finance/capital lease liabilities
All convertible debt until conversion
Mandatorily redeemable preferred stock
Exclude trade payables, deferred taxes, pension obligations, and accrued expenses

Add those up, divide by your denominator of choice, and you have a defensible debt ratio. Compare it to 30% or 33% depending on methodology, and you have your answer.

Or use FaithScreener, which does all this line-item parsing automatically for thousands of global stocks and shows you the calculation for transparency. Your choice.