ITR Filing FY 2025-26: Can You Switch Between Tax Regimes Every Year?

As the financial year progresses, Indian taxpayers are increasingly faced with the dilemma of choosing between the old and new income tax regimes. While one regime might be more beneficial due to home loan deductions today, your financial landscape may shift next year, making a different choice more lucrative.

The Rule of Flexibility: Salaried vs. Business Income

The ability to switch between the old and new tax regimes is not universal; it depends entirely on the nature of your income sources. For individuals who do not have business or professional income—such as most salaried employees—the law provides significant flexibility. These taxpayers can evaluate their deductions, such as Section 80C or HRA, and choose between the two regimes on an annual basis.

However, the rules change drastically for those with business or professional income. For this category of taxpayers, the decision to opt for the old tax regime is binding for subsequent years once exercised. While there is a provision to withdraw this option, it can only be done once in a taxpayer's lifetime, unless they cease to have business or professional income entirely.

Why the Restriction Exists for Professionals

The distinction in rules is a calculated policy choice by the government to ensure stability. According to Richa Sawhney, Partner Tax at Grant Thornton Bharat LLP, business taxation involves complex, multi-year factors such as depreciation and the carrying forward of losses.

Frequent switching for business taxpayers could disrupt the continuity of these tax positions. Therefore, for entrepreneurs and professionals, selecting a regime is a strategic, long-term decision rather than a simple annual calculation. The restriction aims to provide certainty and prevent taxpayers from chasing year-specific advantages that could complicate long-term fiscal planning.

Critical Deadlines and the Default Regime

It is essential to remember that the new tax regime is now the default regime for all individual taxpayers. If you wish to opt for the old regime to claim exemptions, you must do so proactively.

Timing is also critical for compliance. To successfully opt for the old income tax regime, you must file your tax return within the stipulated deadline—which, for the upcoming cycle, is July 31, 2026. Filing a belated tax return carries a penalty in terms of choice: any belated return will automatically default you to the new tax regime, stripping away the opportunity to claim deductions under the old system.

Key Takeaways