Why an Accounting Rule Change Quietly Raised Everyone's Debt Ratio

If a company's debt ratio appears to have jumped noticeably around 2019 with no obvious change in how the business was actually run, the cause probably wasn't the business at all - it was a change in accounting rules for how leases get reported.

The Rule Change That Reshaped Balance Sheets

Before new lease accounting standards took effect (ASC 842 in the US, IFRS 16 internationally, both phased in starting around 2019), most operating leases - like a retailer's store leases or an airline's leased aircraft - were kept entirely off the balance sheet, disclosed only in footnotes as future obligations rather than recorded as actual liabilities. The new standards require companies to record a right-of-use asset and a corresponding lease liability directly on the balance sheet for most leases, which meant that companies with significant real estate or equipment lease commitments saw their reported total liabilities - and therefore their debt ratio - increase substantially the moment the new standard took effect, with no actual change in the company's underlying obligations or financial risk.

Which Industries Were Hit Hardest

Retailers, restaurant chains, and airlines - all heavy users of long-term operating leases for stores, locations, and aircraft - saw some of the largest jumps in reported debt ratio purely from this accounting change, since their lease obligations were often a very large share of their total financial commitments even though those commitments had never previously appeared as balance sheet liabilities at all.

Why This Matters for Historical Comparisons

Comparing a company's debt ratio from before this rule change to a period after it, without adjusting for the difference, will make the company look like it took on significantly more leverage than it actually did - the increase is a reporting change, not a financing decision. Financial analysts adjusting for this typically either exclude the lease liability from a modern debt ratio calculation to make it comparable to older pre-2019 figures, or add an estimated lease liability to older pre-2019 figures to make those comparable to the current standard instead - either direction works, as long as the same basis is used consistently across the periods being compared.

Applying This When Reading a Debt Ratio Trend

Whenever a multi-year debt ratio trend spans 2019, check whether a jump around that period reflects an actual change in borrowing or simply the arrival of previously off-balance-sheet lease obligations - treating an accounting presentation change as a genuine shift in financial risk is a common and avoidable misreading of the trend.