Matching, Substance Over Form and Conservatism: Famous Accounting Principles Explained
By SimplyCPA · 24 October 2026
On this page (5)
- Fundamental qualities: FASB's framework names relevance and faithful representation as the two fundamental qualitative characteristics.
- Enhancing qualities: Comparability, verifiability, timeliness and understandability; cost is the pervasive constraint.
- Matching: Expenses are recognised in the period of the revenue they help produce — the logic behind accruals and depreciation.
- Substance over form: Account for the economic reality, not just the legal form — expressed today through faithful representation.
- Conservatism: Not a qualitative characteristic in FASB's current framework — it conflicts with neutrality — though some rules still lean prudent.
Where the "principles" come from
Most of us learned a list of accounting principles: matching, going concern, consistency, conservatism and so on. US GAAP's foundation today is FASB's Conceptual Framework (Concepts Statement No. 8), which describes what makes financial information useful. Some classic principles are written into it directly; others survive in the logic of the standards.
What the framework says
- Fundamental qualitative characteristics: relevance (predictive value, confirmatory value, materiality) and faithful representation (complete, neutral, free from error).
- Enhancing characteristics: comparability (including consistency), verifiability, timeliness and understandability.
- Pervasive constraint: cost — the benefits of reporting information should justify the costs.
The famous principles, one by one
- Accrual basis — record effects in the period they occur, not when cash moves. See our accrual vs cash basis explainer.
- Matching — recognise expenses in the same period as the revenue they help earn: cost of goods sold with the sale, depreciation over the asset's useful life, commissions with the related revenue. Modern standards get there through asset and liability definitions, but the matching logic is everywhere on the exam.
- Going concern — statements assume the entity will keep operating; management must evaluate whether there's substantial doubt about that within one year after the statements are issued (or available to be issued).
- Historical cost — many assets are carried at what they cost, while others are measured at fair value; the framework recognises several measurement bases.
- Consistency — use the same methods from period to period; part of comparability. Changes need justification and disclosure.
- Substance over form — report the economic reality of a transaction, not just its legal form. A lease that gives control of an asset is reported as a right-of-use asset and liability, even though the lessee doesn't own the asset. In FASB's framework this idea is part of faithful representation.
- Conservatism (prudence) — "anticipate no profit, provide for all losses". FASB's 2010 framework deliberately left conservatism out of the qualitative characteristics, because building in a downward bias conflicts with neutrality. Some individual rules still treat gains and losses differently — for example, inventory write-downs and loss contingencies are recognised while gain contingencies aren't — but conservatism is no longer a framework-level principle.
Practice MCQs
1. Under FASB's Conceptual Framework, which are the fundamental qualitative characteristics?
(A) Comparability and consistency (B) Relevance and faithful representation (C) Verifiability and timeliness (D) Conservatism and neutrality
Answer: B.
2. Why isn't conservatism a qualitative characteristic in FASB's current framework?
(A) It's too costly (B) It conflicts with neutrality (C) It's covered by materiality (D) It applies only to IFRS
Answer: B.
Full coverage is in our FAR conceptual framework notes.