# Financial Accounting vs Tax Accounting: Why the Numbers May Differ

Financial accounting and tax accounting serve different purposes. Financial accounts measure and present business performance, resources and obligations under the applicable reporting framework. Tax computations apply the relevant law to determine taxable amounts and liabilities. The results can differ even when both calculations are correctly prepared.

The practical answer is a reconciliation, not a forced match. Begin with reliable accounting figures, identify each tax adjustment and retain the supporting rule and calculation. Do not rewrite ordinary business expenses or asset records merely to make the ledger equal a tax computation.

## Understand the different starting questions

Consider an illustrative Gwalior manufacturer. Its financial accounts recognise equipment cost and depreciation using the applicable accounting requirements, useful-life estimates and policy. Its tax calculation considers the deductions and depreciation allowed under the law for that taxpayer, asset and period.

Different rules can therefore produce different annual amounts for the same underlying purchase. A cost may be recognised as an expense in the books but have different tax timing or eligibility. An accounting estimate does not automatically establish a tax deduction simply because it has been approved in the financial statements.

The source records remain shared: invoices, agreements, payment evidence and asset details. The separate calculations explain how those facts are treated for each purpose. Good records reduce uncertainty in both workflows.

## Build a transparent numerical bridge

Suppose, purely for illustration, accounting profit before tax is ₹5,00,000. It includes ₹60,000 book depreciation. Assume the correctly established tax depreciation for the example is ₹90,000 and a ₹10,000 expense is not deductible under the applicable rule.

A simplified bridge adds back ₹60,000 book depreciation, deducts ₹90,000 tax depreciation and adds back the ₹10,000 non-deductible expense. The resulting illustrative amount is ₹4,80,000 before any other relevant adjustments, set-offs or provisions.

| Illustrative reconciliation | Amount |
|---|---|
| Accounting profit before tax | ₹5,00,000 |
| Add back book depreciation | ₹60,000 |
| Deduct assumed allowable tax depreciation | Minus ₹90,000 |
| Add assumed non-deductible expense | ₹10,000 |
| Amount before other adjustments | ₹4,80,000 |

The depreciation amounts and deduction assumption are worked numbers, not prescribed rates or a tax conclusion for a real manufacturer. Actual eligibility and calculation require the applicable law and transaction facts.

## Distinguish timing from permanent differences

AS 22 distinguishes timing differences, which originate in one period and can reverse in later periods, from permanent differences that do not subsequently reverse. Different depreciation timing is a common conceptual example of the first category. An expense permanently disallowed under the relevant law can illustrate the second.

This distinction matters for accounting for taxes on income under the applicable framework. Current tax and deferred tax are not the same calculation. Recognition of deferred tax assets involves specific conditions and prudence requirements; an expected future benefit is not automatically recognised.

Entities applying Ind AS use their own income-tax standard and temporary-difference approach. Do not copy an AS 22 worksheet into an Ind AS set of accounts without considering the correct framework and requirements.

## Check the law for the period concerned

As at the drafting date of 25 October 2026, the Income-tax Act, 2025 has commenced from 1 April 2026, subject to its provisions. Official transition guidance explains that earlier periods and proceedings can remain governed by the repealed Act through the savings framework.

That makes dates and references important. An older article’s section number may not be the correct reference for a current tax year, while an earlier-period matter cannot automatically be analysed solely under the new Act. Establish the taxpayer, relevant period and transition position before applying a rule.

Use enacted law, current rules and official guidance. A proposal, consultation document or announcement should not be treated as an operative deduction. Retain the provision used in the computation so another preparer can verify it later.

## Avoid common reconciliation mistakes

Do not treat owner funding or a loan receipt as sales just because money entered the bank. Do not treat principal repayment as an ordinary expense. These are accounting classification issues that should be corrected before the tax reconciliation, rather than hidden among tax adjustments.

Keep personal spending separate from genuine business costs. For mixed-use expenditure, establish the facts and relevant allocation and tax conditions. A business account payment does not by itself prove deductibility.

Review whether adjustments are duplicated. For example, a cost already excluded from accounting profit should not be added back again without a reason. Link every tax adjustment to the relevant ledger amount or separate tax schedule and explain its direction.

Keep the reconciliation version linked to the final accounts used. If an accounting adjustment changes profit after a draft tax computation was prepared, review the corresponding tax effect and schedules before finalising. A sound rule applied to an outdated starting profit can still produce a wrong result. Version control is therefore part of accurate tax preparation, not merely document housekeeping.

## Maintain two connected sets of schedules

The accounting asset register should reconcile to equipment cost, accumulated depreciation and carrying amounts. Tax depreciation schedules should show the information required for the tax calculation. The reconciliation explains why their annual charges or closing amounts differ.

Use a similar approach for provisions, losses and other material adjustments where relevant. Record the period, amount, rule, supporting evidence and preparer. Reconcile tax payments, withholding credits and liabilities separately from the profit bridge.

Financial and tax accounting work best when they share sound evidence and retain distinct purposes. Prepare the books correctly, apply the law for the right period and explain every material difference. The owner then understands both the business’s reported performance and the basis of its tax calculation.

## Sources and references

- [ICAI: Framework for the Preparation and Presentation of Financial Statements](https://indasaccess.icai.org/Volume-III/AS/asb.html?a=101)
- [ICAI: AS 22, Accounting for Taxes on Income](https://indasaccess.icai.org/Volume-III/AS/asb.html?a=123)
- [Income-tax Act 2025, section 1: commencement](https://www.incometaxindia.gov.in/w/section-1-269)
- [Income Tax Department: FAQs on Interplay and Transition to the Income-tax Act 2025](https://www.incometaxindia.gov.in/documents/81799/11848482/FAQs-on-Interplay-and-Transition.pdf)