At present, India’s income tax system is entirely based on individual taxation, wherein each taxpayer is entitled to a separate basic exemption limit and individual deductions. Even after marriage, there is no fundamental change in this structure. Husband and wife are treated as separate taxpayers, required to file their income tax returns independently and pay tax individually. This is so despite the fact that, in reality, most families function on the basis of shared income, joint expenditure, and collective financial priorities.
Many experts believe that the existing system does not truly reflect the realities of the modern family economy. It fails to recognise married couples as a single economic unit. In several Western countries, where spouses’ incomes and expenditures are closely interlinked, this reality is explicitly acknowledged within the tax system.
If an optional joint income tax return system were to be introduced in India, it could significantly reduce the overall tax burden on many families—particularly those that depend on a single earning member. Even today, a large number of Indian households rely on only one source of income. Considering rising inflation, education expenses, and healthcare costs, the current basic exemption limit often proves inadequate. Even for a family of four, existing tax relief appears minimal when compared to actual living expenses.
As a result, many taxpayers attempt artificial splitting of income within the family to save tax, a practice that is neither healthy nor desirable from the perspective of a sound tax system. Against this backdrop, the Institute of Chartered Accountants of India (ICAI) has recommended the introduction of a joint taxation system for married couples. Such a measure would reduce the tax burden on families and help curb tendencies toward tax avoidance. Notably, this concept is not new; in developed countries such as the UK, the USA, and Germany, joint tax filing for married couples is already a well-established and successful practice.
What Exactly Has ICAI Proposed?
In its Pre-Budget Memorandum 2025, ICAI has clearly stated that married couples in which both spouses hold valid PAN cards should be given an optional choice to file a joint income tax return and pay tax collectively. At the same time, full flexibility would be retained for taxpayers who prefer to continue under the existing individual taxation system. ICAI has recommended that under the joint taxation regime, the basic exemption limit should be doubled, and a separate slab structure should be designed based on combined family income.
According to the proposed framework, in my view, no tax would be levied on combined income up to ₹8 lakh. Thereafter, concessional tax rates would apply in a progressive manner on income exceeding ₹24 lakh, while a maximum tax rate of 30% would apply to combined income above ₹48 lakh. It now remains to be seen whether this recommendation of ICAI will be accepted in the Union Budget 2026.
Key Advantages of the Joint Taxation System
1. Tax Savings through Income Averaging
Under the current individual tax regime, the basic exemption limit and lower tax slabs of a non-earning or low-income spouse often remain unutilised. A joint taxation system would enable effective utilisation of this unused capacity. Income averaging would substantially reduce the overall tax burden on the family.
Moreover, joint taxation would encourage better financial planning at the household level, simplify investment structures, and align well with the government’s vision of a clean, slab-based tax system with minimal deductions.
2. Special Benefits for Senior and Retired Couples
Retired couples, in particular, would benefit from a simpler and more comprehensible tax structure on pension income, interest income, and other investment returns. This would reduce the need for complex tax planning.
From a long-term perspective, reduced incentives for artificial income splitting could also help decrease tax evasion, disputes, and prolonged litigation.
3. More Effective Use of Investment-Linked Deductions
Under the proposed framework, the combined family income would be assessed under a separate household tax slab system. This would be especially beneficial for families where one spouse earns significantly more than the other.
Joint filing would allow more efficient and consolidated utilisation of deductions relating to home loan interest, health insurance premiums, and other eligible tax-saving investments.
Limitations and Need for Caution
However, joint taxation may not always be tax-efficient in every case. For couples where both spouses fall within higher income brackets, combining incomes could push them into higher tax slabs or surcharge thresholds. Therefore, each family would need to carefully evaluate whether the joint or individual taxation option is more beneficial, based on their specific income structure.
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