Old vs New Tax Regime in India: How to Compare for FY 2026–27
Comparing the old and new tax regimes is a calculation—not a contest between ‘high deductions’ and ‘low rates’. The new regime generally has lower marginal rates but fewer exemptions; the old regime can work out lower when eligible deductions reduce taxable income enough. FY 2026–27 is the first year under the Income-tax Act, 2025, which uses ‘tax year’ for the financial year. This guide explains the rules, an illustrative comparison and practical steps. It is educational, not individual tax advice.
1. Start with the right year and taxpayer profile
FY 2026–27 runs from 1 April 2026 to 31 March 2027. The Income-tax Act, 2025 took effect on 1 April 2026 and replaces the 1961 Act for this tax year; it also replaces ‘previous year’ and ‘assessment year’ with ‘tax year’. So an income-tax comparison for this period should use the rules applying to tax year 2026–27, not confuse it with tax earned in FY 2025–26 [1].
Assume a resident individual below age 60 with salary as the only income and no special-rate income or surcharge. Age, residency, capital gains and other income can change results. Gather your annual salary estimate, HRA and rent details, home-loan interest, and proofs for any deduction you may claim.
2. What the FY 2026–27 tax slabs mean
For an individual using the new regime, the tax rates are nil up to ₹4 lakh; 5% on the slice from ₹4 lakh to ₹8 lakh; 10% from ₹8 lakh to ₹12 lakh; 15% from ₹12 lakh to ₹16 lakh; 20% from ₹16 lakh to ₹20 lakh; 25% from ₹20 lakh to ₹24 lakh; and 30% on income above ₹24 lakh. These are marginal rates: each rate applies only to the part of income in that band, not to the entire salary. Finance Act 2026’s rate schedule applies to the tax year commencing 1 April 2026 [2].
For a general individual under the old regime, slabs are nil up to ₹2.5 lakh, 5% from ₹2.5 lakh to ₹5 lakh, 20% from ₹5 lakh to ₹10 lakh, and 30% above ₹10 lakh. A resident individual may qualify for a rebate subject to statutory conditions; it is not a salary deduction, and special-rate income can be treated differently. Check the official calculator rather than assume the rebate makes every tax bill zero [2].
3. Compare what you can actually deduct
Both regimes allow a salary standard deduction, but the official Act sets different amounts: up to ₹75,000 under section 202(1), and up to ₹50,000 in other cases, each limited to salary where lower [3]. Under the new regime, many common old-regime benefits—such as HRA exemption and deductions for qualifying 80C and 80D payments—are generally unavailable. Limited deductions remain available where the law expressly permits them; employer contributions to an eligible pension scheme are one example. Do not assume every payroll allowance or investment reduces taxable income in both regimes [4].
The old regime may allow eligible HRA, savings, insurance and home-loan interest claims, subject to conditions and limits. Count only deductions you qualify for and can document—not spending you would not otherwise make. Check current forms and the Department’s eligibility guidance [5].
4. Run the same salary through both regimes
Illustration: assume annual salary of ₹15 lakh, no other income, and ₹4.25 lakh of eligible old-regime exemptions and deductions in addition to the ₹50,000 standard deduction. This ₹4.25 lakh is a documented-assumption placeholder, not a recommended investment target; it could include only items the taxpayer genuinely qualifies to claim. Old-regime taxable income would be ₹10.25 lakh. Applying the slabs above gives basic tax of ₹1,20,000; 4% health and education cess makes the illustrative total ₹1,24,800.
On the new-regime side, assume no other income or deductions and claim the ₹75,000 standard deduction. Taxable income is ₹14.25 lakh. Tax across the marginal bands is ₹93,750; with 4% cess, the total is ₹97,500. In this example, the new regime is lower by ₹27,300. The Finance Act provides for 4% cess on income tax and surcharge, where applicable [2]. Actual tax can differ due to rounding, rebates, special-rate income, exemptions, surcharge, or eligibility details. This is an estimate, not a prediction of anyone’s final assessment.
5. Use a repeatable comparison checklist
Make two columns in a spreadsheet or use the Income Tax Department’s calculator. Enter the same gross salary and other income in each. For each regime, calculate salary income after only its permitted exemptions and deductions, add income from other heads, apply the corresponding slabs and any eligible rebate, then add cess and surcharge if relevant. Compare final estimated tax—not tax saved by buying a product, the headline rate, or monthly TDS alone.
Keep salary/HRA details, rent receipts where relevant, proofs for eligible investments or insurance, pension-contribution details, and home-loan interest statements. Mark each item ‘allowed in old’, ‘allowed in new’, or ‘not claimed’ after checking the rule; update the estimate if your pay or claims change.
6. Choose and communicate carefully
For Tax Year 2026–27, the new regime is the default under Section 202; an eligible taxpayer may choose the old regime by following the current-year rules [1] [3]. The exact procedure and deadline can depend on income and taxpayer type. An older Income Tax Department FAQ for the 1961 Act distinguished an employee’s payroll intimation from the election made in the return and described a separate Form 10-IEA process for some business cases [4]. Because that page covers the earlier framework, use it only as historical context. Check the current instructions for the return you file; do not assume a salary-TDS declaration makes the legal choice for you [1] [3].
Business or professional income can bring different election and switching rules. Salary TDS is only a prepayment estimate; compare it with final liability when filing, and check official guidance for capital gains, multiple employers, foreign income, or house-property loss.
Retest the comparison when your income or claims change
A comparison made at the start of the year is only as useful as its assumptions. Update both columns when you receive a bonus, change jobs, start renting, take a qualifying loan, receive interest or dividend income, or sell an investment. Keep each item under the correct income head and apply only the exemptions and deductions available in that regime. The Income Tax Department describes the choice as a comparison between different rates and deductions, rather than a universal winner; its official calculator can help estimate the result using the information you enter [4].
Use a small sensitivity check instead of relying on a single forecast. For example, calculate a base salary case, a lower variable-pay case and a higher bonus case. Separately test the old-regime result with only documented claims and with a conservative version if a receipt or eligibility condition is uncertain. This does not predict the final assessment. It shows which assumptions drive the result and whether a small change would reverse the comparison. Label each input with its source, such as a payslip, employer projection or loan statement, so a later reviewer can follow the calculation [2] [3].
Do not confuse monthly tax deducted by payroll with the final tax owed. Employer withholding is estimated from the employee's declaration and the regime communicated for salary-tax calculations. The Department's regime FAQ distinguishes that employer intimation from the eligible choice made through the return process under the cited old-law framework [4]. For Tax Year 2026–27, check the current 2025 Act, return utility and due-date instructions; do not carry an old assessment-year FAQ forward as if it were a 2026 rule [1] [3].
The result is also more than a tax figure. If the old regime requires a new long lock-in solely to create a projected deduction, include that loss of access in your decision. If the new regime leaves more take-home cash, decide how it will support your budget or goals rather than treating a lower estimated bill as automatic savings. Compare only products you would consider on their own merits, then assess the tax treatment. This keeps a tax comparison from turning into an incentive to borrow or buy something unsuitable [4] [5].
Save a short workpaper with the year, taxpayer assumptions, income sources, each regime's allowed claims, the source of every material input, the resulting estimate and the date you checked official guidance. Repeat it if your circumstances change and retain the records used in a filed return. This does not replace the prescribed return or professional advice, but it makes the reasoning transparent. Tax legislation, forms, thresholds and administrative instructions can change, so check current primary sources before acting on a prior-year estimate [1] [2] [3].
Frequently asked questions
Which tax regime is the default for FY 2026–27?
The new regime is the default. An eligible taxpayer may choose the old regime by following the applicable return-filing process and deadline.
Can I claim HRA exemption under the new regime?
Generally, no. HRA exemption is an old-regime benefit; check the Act and current return instructions for the rules that apply to your facts.
Is the standard deduction available in both regimes?
Yes. The Income-tax Act, 2025 provides up to ₹75,000 under section 202(1), and up to ₹50,000 in other cases, limited to salary where lower.
Does informing my employer lock in my regime choice?
Under the older 1961 Act guidance, payroll intimation for TDS and the taxpayer’s return election were distinct [4]. The 2026 Act applies a new framework, so use the current-year return instructions to check how an eligible old-regime choice is made rather than relying on an earlier assessment-year FAQ [1] [3].
Should I invest more just to get an old-regime deduction?
Do not invest solely to chase a tax estimate. Compare only eligible amounts you genuinely intend to commit, along with costs, liquidity and your broader financial needs.
Conclusion
For FY 2026–27, compare the old and new regimes on the same complete income estimate, after checking each deduction’s eligibility. The new regime’s wider slabs and higher standard deduction can make it attractive even without many claims; documented HRA, insurance, savings or loan deductions may shift the old-regime result. Save your assumptions, use the official calculator, and confirm current filing rules before submitting a return. No single regime is best for everyone.
Sources and further reading
Primary and reputable sources are linked so readers can check rules and product terms directly. Rules can change; confirm the current official guidance before acting.
- Objective and scope of the New Act FAQs — Income Tax Department, Government of India
Confirms the Income-tax Act, 2025 takes effect from 1 April 2026, applies the tax-year terminology to FY 2026–27 onward, and explains the transition from assessment-year terminology.
- Finance Bill 2026 — Ministry of Finance, Government of India
The Finance Bill sets tax rates for the tax year commencing 1 April 2026 and provides the new Act's rate schedule and applicable surcharge/cess framework used for the FY 2026–27 slab comparison.
- Income-tax Act, 2025, as amended by Finance Act, 2026 — Income Tax Department, Government of India
Section 19 specifies a standard deduction up to ₹75,000 where tax is computed under section 202(1), and up to ₹50,000 in other cases, subject to salary.
- FAQs on New Tax vs Old Tax Regime (older 1961 Act guidance) — Income Tax Department, Government of India
Historical department guidance for the 1961 Act, including the distinction between employer TDS intimation and a return election under the rules it covers; it is not cited as the current Tax Year 2026–27 procedure.
- Various Deductions under the Income-tax Act — Income Tax Department, Government of India
Lists common deduction categories and eligibility conditions, including salary, 80C, 80D and pension-related deductions; supports the practical distinction between allowable claims and merely planned spending.