Every year, millions of Indian taxpayers face the same stressful dilemma: Should I stick to the Old Tax Regime or switch to the New Tax Regime?

With recent Union Budget updates making the New Tax Regime the standard default option with significantly lower tax slabs, the choice is no longer straightforward. Sticking to the old way out of pure habit could mean losing tens of thousands of rupees in unnecessary taxes every year.

Here is the step-by-step process to calculate exactly which regime will save you the most money this financial year.

Step 1 — Audit Your Total Deductions Under the Old Regime

The Old Tax Regime rewards people who save and spend in specific ways. To see if it is worth it, you must add up all your potential deductions:

– Section 80C (PPF, ELSS, School Fees, Home Loan Principal) — up to ₹1.5 Lakhs.

– Section 80D (Health Insurance Premium) — up to ₹25,000 to ₹50,000.

– Section 24(b) (Home Loan Interest) — up to ₹2 Lakhs.

– House Rent Allowance (HRA) and Leave Travel Allowance (LTA).

Step 2 — Understand the New Regime’s Mechanics

The New Tax Regime strips away almost all of these deductions. You cannot claim HRA, 80C, or home loan interest on a self-occupied property. In exchange, the government gives you vastly lower, progressive tax slabs and an increased basic exemption limit. Salaried individuals also receive a standard deduction of ₹75,000 under this regime.

Step 3 — Apply the Modern Slab Rates (FY 2026-27)

– Up to ₹4 Lakhs: Nil

– ₹4 Lakhs to ₹8 Lakhs: 5%

– ₹8 Lakhs to ₹12 Lakhs: 10%

– ₹12 Lakhs to ₹16 Lakhs: 15%

– ₹16 Lakhs to ₹20 Lakhs: 20%

– Above ₹24 Lakhs: 30%

The Zero-Tax Threshold: Thanks to the enhanced Section 87A rebate, if your total taxable income stays up to ₹12 Lakhs under the New Regime, your actual tax liability drops completely to zero.

Step 4 — Find Your Personal “Breakeven Point”

The decision comes down to a mathematical breakeven point. As a rule of thumb: if your total deductions (80C + 80D + HRA + Home Loan Interest) are less than ₹3.5 Lakhs to ₹4 Lakhs in a year, the New Tax Regime will almost always save you more money. If your deductions are exceptionally high because of a large home loan and high rent, the Old Regime may still pull ahead.

Step 5 — Run the Actual Numbers Side-by-Side

Do not guess. Take your gross annual salary, subtract ₹50,000 (standard deduction) and your total exemptions under the Old Regime, and calculate your tax bill. Then, take that same gross salary, subtract ₹75,000 (New Regime standard deduction), apply the lower slabs, and compare the final results side-by-side. The numbers will give you an instant, clear answer.

There is no emotional loyalty in tax planning—only mathematics. Audit your investments, calculate your breakeven point, and pick the regime that leaves the largest amount of cash inside your own bank account.

At DRS Financial Services, we run highly detailed, personalized tax regime simulations for our clients, ensuring you choose the optimal path to minimize your tax layout every year.
Unsure which regime saves you more? Talk to DRS today.