AY 2026–27 Corporate Tax Return Filing: Checklist Every Company Must Follow

Income Tax Return (ITR) filing for domestic companies in India has become a highly detail-oriented compliance exercise due to increasing integration between GST data, Annual Information Statements (AIS), TDS records, MCA filings, and income tax disclosures. For Assessment Year (AY) 2026–27, companies are expected to ensure complete accuracy in financial reporting, reconciliation, tax computation, and statutory disclosures to avoid notices, penalties, or scrutiny proceedings.

Domestic companies, including private limited companies, public limited companies, and One Person Companies (OPCs), are generally required to file ITR-6 unless they are claiming exemption under Section 11, in which case ITR-7 becomes applicable. The Central Board of Direct Taxes (CBDT) has already notified the updated ITR forms for AY 2026–27 with several revised disclosure requirements and reporting fields.

Understanding the Applicable ITR Form

Choosing the correct ITR form is the first and most important step in the filing process. Most domestic companies are required to file ITR-6 electronically using a Digital Signature Certificate (DSC). Companies engaged in charitable or religious activities and claiming exemption under Section 11 are required to file ITR-7 instead.

Companies should carefully verify their category, nature of operations, and exemption eligibility before selecting the applicable return form, as filing an incorrect return can result in defective return notices from the Income Tax Department.

Verification of PAN, TAN and MCA Records

Before beginning the filing process, companies should ensure that their PAN, TAN, registered office details, director information, and authorized signatory details are fully updated and consistent across all government portals, including the Ministry of Corporate Affairs (MCA), GST portal, and Income Tax e-Filing portal.

Any mismatch between PAN records and MCA records may delay return processing or trigger compliance notices. Companies should also confirm that the Digital Signature Certificate of the authorized signatory is active and properly registered on the e-filing portal.

Finalisation of Financial Statements

Companies must ensure that their financial statements are fully finalized before initiating the tax filing process. This includes preparation of the balance sheet, profit and loss account, cash flow statement, schedules, notes to accounts, and other disclosures mandated under the Companies Act, 2013.

Particular attention should be given to depreciation calculations, provisions, contingent liabilities, related party transactions, employee benefit expenses, and revenue recognition policies. The figures disclosed in the ITR must exactly match the audited financial statements filed with the MCA.

Tax Audit Compliance

Most domestic companies are mandatorily subject to audit under the Companies Act as well as Section 44AB of the Income-tax Act. Accordingly, the tax auditor must upload the audit report electronically in Form 3CA and Form 3CD before the company files its ITR.

The tax audit report contains extensive disclosures relating to TDS compliance, cash transactions, related party payments, disallowances, GST reconciliation, depreciation, and statutory dues. Any inconsistency between the audit report and the ITR may attract scrutiny from the department.

GST Reconciliation

GST reconciliation has become one of the most crucial aspects of corporate tax compliance. Companies must reconcile turnover disclosed in the books of accounts with figures reported in GSTR-1, GSTR-3B, annual returns, and e-way bill records.

Differences between GST turnover and income tax turnover are among the most common reasons for automated notices and scrutiny assessments. Companies should therefore maintain detailed reconciliation statements explaining any variations arising from timing differences, credit notes, exempt supplies, or accounting adjustments.

Reconciliation of TDS and Tax Credits

Before filing the return, companies should download and verify Form 26AS, AIS (Annual Information Statement), and TIS (Taxpayer Information Summary). These records must be reconciled with the books of accounts and tax computation.

All TDS credits, advance tax payments, and self-assessment tax payments should reflect correctly in the income tax portal. Companies should also verify that interest income, high-value transactions, and financial investments appearing in AIS are properly disclosed in the return.

Selection of the Appropriate Tax Regime

Domestic companies may choose between different tax regimes depending on their eligibility and business structure. Companies may continue under normal tax provisions or opt for concessional tax regimes under Sections 115BA, 115BAA, or 115BAB.

The concessional regimes offer lower tax rates subject to fulfilment of specified conditions, including withdrawal of certain deductions and exemptions. Companies opting for these regimes must ensure timely filing of the prescribed forms such as Form 10-IC or Form 10-ID.

A detailed comparative evaluation should be carried out before selecting the applicable tax regime, as the option may become irreversible in certain cases.

Minimum Alternate Tax (MAT) Review

Companies operating under normal tax provisions should carefully examine the applicability of Minimum Alternate Tax (MAT) under Section 115JB. MAT is levied on book profits where normal income tax liability falls below the prescribed threshold.

Where applicable, the company’s accountant is required to certify the computation in Form 29B. Proper adjustments relating to deferred tax, provisions, revaluation reserves, and exempt income should be examined carefully while calculating MAT liability.

Transfer Pricing Documentation

Companies engaged in international transactions or specified domestic transactions are required to comply with transfer pricing regulations. This involves preparation of transfer pricing documentation, benchmarking analysis, FAR analysis, and filing of Form 3CEB certified by a Chartered Accountant.

Failure to maintain adequate transfer pricing documentation may result in heavy penalties and prolonged litigation. Companies should therefore ensure that all related party transactions are properly documented and supported by arm’s length pricing studies.

Carry Forward of Losses and Deductions

Companies should verify brought forward business losses, unabsorbed depreciation, MAT credits, and deductions before filing the return. Timely filing of the ITR is critical because delayed filing may lead to denial of carry forward of certain losses.

Deduction claims under Chapter VI-A and sector-specific incentives should also be reviewed carefully to ensure eligibility and documentation support.

TDS and TCS Compliance Review

Prior to filing the ITR, companies should ensure that all TDS and TCS returns have been filed correctly and all statutory dues have been deposited within prescribed timelines.

Short deduction, delayed deposits, incorrect PAN reporting, or mismatch between TDS returns and books of accounts can trigger interest liabilities and departmental notices. Vendor reconciliation should therefore be completed before filing the return.

Companies should review all related party transactions, including loans, guarantees, inter-corporate deposits, director remuneration, and shareholder transactions. These transactions are closely monitored under both the Companies Act and Income-tax Act.

Proper disclosures and board approvals should be maintained to avoid allegations of non-compliance or tax avoidance.

Deferred Tax and Provisioning Review

Deferred tax assets and liabilities should be computed carefully based on timing differences between accounting income and taxable income. Companies should also examine provisions relating to doubtful debts, employee benefits, gratuity, leave encashment, CSR expenditure, and prior period adjustments.

Incorrect provisioning may affect both taxable income and MAT computation, resulting in tax disputes.

Advance Tax Verification

Companies are required to pay advance tax in quarterly installments. Before filing the return, companies should verify whether sufficient advance tax has been paid to avoid interest under Sections 234B and 234C.

Any shortfall should be adjusted through self-assessment tax before filing the return.

Digital Signature and E-Verification

Corporate income tax returns must be filed using a valid Class 3 Digital Signature Certificate. Companies should verify that the DSC is renewed, registered, and functioning properly on the e-filing portal.

Technical issues related to DSC registration or expired certificates often cause last-minute filing delays.

Consistency Between MCA and Income Tax Filings

The details disclosed in the ITR must remain consistent with filings made before the Ministry of Corporate Affairs, including AOC-4, MGT-7, Board Reports, and audited financial statements.

Inconsistencies between MCA filings and income tax records are increasingly being picked up through automated data analytics by the tax department.

Foreign Assets and Foreign Tax Credit Reporting

Companies having overseas income, foreign investments, or foreign tax payments must disclose such information accurately in the return. Claims relating to Foreign Tax Credit (FTC) should be supported by filing Form 67 within the prescribed timeline.

Failure to disclose foreign assets or overseas income may attract severe penalties under the Black Money Act and related provisions.

Due Dates for AY 2026–27

For domestic companies not requiring audit, the due date for filing the ITR is generally 31 July 2026. Companies subject to audit are required to file returns by 31 October 2026, while transfer pricing cases generally have a due date of 30 November 2026.

Belated returns and revised returns can be filed within the timelines prescribed under the Income-tax Act, subject to applicable conditions.

Consequences of Non-Compliance

Failure to file accurate and timely returns may result in interest liabilities, penalties, defective return notices, denial of losses, scrutiny assessments, and in serious cases, prosecution proceedings.

With increasing integration of GST, MCA, AIS, TDS, and banking data, companies are now under significantly higher compliance surveillance than before.

Conclusion

For AY 2026–27, ITR filing for domestic companies requires far more than merely uploading financial statements and tax computations. Companies must ensure complete alignment between books of accounts, GST filings, MCA records, AIS data, TDS returns, and statutory disclosures.

Early preparation, systematic reconciliation, timely audits, and careful verification of tax positions can significantly reduce litigation risks and ensure smooth processing of returns. Businesses that adopt a proactive compliance approach will be better positioned to handle increasing regulatory scrutiny and evolving tax reporting standards in India.