Consistent accounting policies make financial comparisons meaningful because similar transactions are treated in similar ways from one period to the next. Without that consistency, a rise in profit might reflect a new measurement method rather than better trading. Owners can then reward the wrong activity, set unrealistic targets or misjudge how much the business has improved.
Consistency does not require keeping an unsuitable policy forever. The relevant accounting framework determines when a change is permitted or required and how it is accounted for. The goal is reliable, understandable comparisons, with changes explained rather than hidden inside the totals.
Identify the policy before comparing the result
An accounting policy is a principle and the method used to apply it in preparing financial statements. Examples include inventory cost methods and policies for recognising particular transactions. Routine coding choices also influence internal reports, even where they do not amount to a formal policy change.
For an illustrative Surat garment trader, freight inward may be included in inventory cost when directly attributable under the applicable requirements. If one period wrongly charges all such freight to selling expenses while the next includes it in stock, gross margins will not be directly comparable. The business must first establish the correct treatment and then explain any correction needed.
A report is therefore easier to interpret when the owner knows which costs are included in gross profit, which measurement methods apply and whether the period has been fully adjusted. A consistent report name does not ensure a consistent calculation.
See how the same activity can produce different figures
Suppose a simplified inventory example has 100 identical units costing ₹500 each and another 100 costing ₹600 each. The business sells 120 units at ₹800. Under FIFO, the cost of those sales is ₹62,000: ₹50,000 for the first 100 and ₹12,000 for the next 20.
Using a weighted average cost of ₹550 per unit, the same 120 units have a cost of ₹66,000. Sales are ₹96,000 in both cases. Gross profit is therefore ₹34,000 under FIFO and ₹30,000 under weighted average for this illustration.
The ₹4,000 difference comes from cost assignment, not a different selling price or additional customer demand. Both methods have conditions and must be appropriate to the inventory and applicable requirements. This example is not a reason to switch methods simply to obtain the higher result.
Use a short policy record
A policy register can identify the area, selected treatment, reason and approval date. Link it to the applicable standard and describe how the business applies the policy in practice. Staff need enough detail to handle ordinary transactions consistently.
For inventory, the record may cover which cost formula is used for relevant groups, what purchase costs are included and how net realisable value is reviewed. For prepayments, it may explain allocation by coverage dates and the materiality approach. Do not copy a long generic policy that fails to describe what the team actually does.
| Comparison issue | Question to ask |
|---|---|
| Gross margin jumps | Did product mix change, or did cost classification change? |
| Expenses fall sharply | Were costs deferred, omitted or genuinely reduced? |
| Asset values increase | Were there purchases, revaluations or a changed treatment? |
| Prior-year figures move | Is this a permitted restatement, reclassification or correction? |
The register also helps when a new bookkeeper joins. Otherwise, policies can drift through a sequence of reasonable-looking individual decisions that no one notices until year end.
Know when consistency permits change
Under AS 5, a policy change is restricted to specified grounds, including statutory or standard requirements or a more appropriate presentation. A new policy for a genuinely new type of transaction is not necessarily a change to an existing policy. The applicable framework matters, so do not combine AS and Ind AS requirements casually.
Distinguish a policy change from an estimate revision or an error. A new assessment of a machine's remaining useful life based on experience is different from deciding how a class of transactions should be accounted for. Correcting a bill posted to the wrong account is different again.
These distinctions affect accounting and disclosure. Record what changed, why it changed and which requirement governs the treatment. Do not describe a correction as an “improved estimate” merely to avoid explaining the earlier mistake.
Keep presentation consistent too. Moving delivery charges between cost of sales and selling expenses may leave net profit unchanged but alter a headline gross-margin measure. Maintain a mapping of accounts to report lines and review changes before issuing comparative reports. The user should be able to identify whether a movement came from the business or from the report structure.
Explain effects in language the owner can use
Where a change materially affects the accounts, explain its nature and the effect required by the relevant standard. For internal reviews, a bridge can show reported results and a clearly labelled comparable view. Reconcile that analysis to the official figures rather than replacing them with an unexplained adjusted number.
For example, if a reporting reclassification moves ₹60,000 from administration to production costs, total profit may remain unchanged while gross profit changes. The owner needs that explanation before concluding production has become less efficient.
Use consistency as a discipline for decision-making. Maintain clear policies, challenge unexplained changes and update methods when the applicable rules and circumstances justify it. The most useful comparison is one in which the reader can distinguish the effects of trading, estimates, corrections and accounting choices, then act on the business changes that truly occurred.