Ratio Analysis and the Invisible Asset Problem
- Apr 11
- 3 min read
Updated: Apr 12
Financial ratios are the shorthand of business performance. They compress complex information into comparable metrics that allow stakeholders to assess performance, identify risk, and make decisions efficiently.
But ratios are only as good as the financial statements they are drawn from. When depreciation policy distorts the asset base, it distorts every ratio that contains assets in the calculation. And because most key ratios do contain assets, the corruption is widespread.
Ratio Analysis: The Ratios That Break
Ratio | Formula | Effect of understated assets |
Return on Assets (ROA) | Net profit / Total assets | Denominator understated; ROA overstated. Business appears more profitable per dollar of assets than it is. |
Asset Turnover | Revenue / Total assets | Denominator understated; turnover ratio overstated. Suggests greater capital efficiency than reality. |
Debt-to-Asset Ratio | Total debt / Total assets | Denominator understated; leverage appears higher. May trigger covenant breaches. |
NTA per share | NTA / shares on issue | NTA understated; value per share suppressed. Relevant for equity raises and investor communications. |
Interest Coverage | EBIT / Interest expense | EBIT overstated where depreciation is understated; coverage appears stronger than it is. |
The Compounding Problem
These ratios do not operate in isolation. When the asset base is systematically distorted, the every metric including the asset base is distorted simultaneously.
A business that appears to have high ROA, high asset turnover, and strong interest coverage may be performing well. Or it may have an artificially deflated asset base making mediocre performance look good. Without accurate depreciation, there is no way to know.
This matters most when management is making capital allocation decisions. A business that appears to generate high returns on its existing asset base may under-invest in new assets. If that ROA is inflated by an understated denominator rather than genuine operational excellence, the under-investment decision is made on false premises.
The Benchmarking Problem
Many businesses benchmark their ratios against industry peers or prior periods. When the underlying depreciation policy differs between comparators, the benchmarking exercise is invalid.
A business applying accounting depreciation over genuine useful life and comparing its ROA against a peer that has written off assets for tax will always appear to underperform. This is not because it generates less value, but because it carries a higher asset base in the denominator.
This type of false comparison can drive incorrect strategic decisions.
Maintenance Capital and the Hidden Obligation
When tax‑accelerated depreciation is used as the basis for the accounts, depreciation is brought forward into the first year.
In later years, depreciation is not recorded in the accounts even though the asset is still being used. As a result, the accounts understate the ongoing cost of maintaining the business’s productive capacity. This can materially distort free cash flow by making it appear higher than it truly is because the calculation implicitly assumes little or no capital expenditure in relation to ongoing maintenance.
For Advisors: The Conversation to Have
When presenting management accounts or year-end financial statements, the ratio analysis conversation is an opportunity to demonstrate advisory value. The questions to ask:
Are ROA and asset turnover ratios comparable to prior years? Has anything changed in depreciation methodology?
If benchmarking against peers, is the comparison on an equivalent basis?
Does the reported depreciation charge reflect actual capital consumption? Is free cash flow being calculated correctly?
Is a deferred tax liability carried that reflects the gap between accounting and tax asset bases?
These are questions a CFO at a large company would ask routinely. They are equally valid for a $5 million turnover SME.
The numbers only make sense if the foundations are right.
If your firm wants financial statements where the ratio analysis is actually meaningful, see how Dwindle maintains accurate asset records from a single source of truth.
Also in this series: Why Accounting Depreciation Should Never Equal Tax Depreciation | Borrowing Against Your Balance Sheet When Your Assets Have Disappeared
This article is general in nature and does not constitute financial, tax, investment, or legal advice. Readers should consult a registered tax agent or accountant for advice specific to their circumstances.
