New vs Old Tax Regime 2025-26: Which Saves More at Your Salary?
Published 30 June 2026 · Tax & Salary
Kiran in Pune got a new job offer with a ₹15L CTC. HR sent a form asking which tax regime she preferred. She had 7 days to reply. Neither option was explained. She had never heard the term "break-even deductions." She picked the old regime because she assumed her Section 80C investments made it better — but she had not done the math. This post shows the calculation she needed.
New Regime Tax Slabs for FY 2025-26
The new regime (default from FY 2024-25) uses these slabs. Section 87A rebate makes income up to ₹12L completely tax-free.
| Income Slab | Tax Rate |
|---|---|
| ₹0 – ₹4,00,000 | 0% |
| ₹4,00,001 – ₹8,00,000 | 5% |
| ₹8,00,001 – ₹12,00,000 | 10% |
| ₹12,00,001 – ₹16,00,000 | 15% |
| ₹16,00,001 – ₹20,00,000 | 20% |
| ₹20,00,001 – ₹24,00,000 | 25% |
| Above ₹24,00,000 | 30% |
The Only Question That Matters: Does Your Deduction Exceed the Break-Even?
The regime question is not "which is better in general." It is "is the total of your deductions above or below the break-even threshold for your income?" Below the break-even: new regime saves more. Above it: old regime saves more. Full stop.
The break-even changes with income because both regimes tax higher slabs differently. Here are the thresholds:
| Gross Income | Break-Even Deductions | If deductions exceed this → old regime |
|---|---|---|
| ₹7.5L | ₹1.5L | 80C alone clears it |
| ₹10L | ₹2.5L | 80C + one small deduction |
| ₹12L | ₹2.75L | 80C + partial 80D |
| ₹15L | ₹3.75L | 80C + 80D + partial HRA |
| ₹20L | ₹4.75L | 80C + 80D + HRA + NPS |
| ₹30L | ₹5.5L | Full 80C + 80D + HRA + home loan interest |
Kiran's Actual Tax Comparison at ₹15L
New regime: Gross salary ₹15,00,000. Standard deduction ₹75,000. Taxable income ₹14,25,000.
Tax on ₹14.25L:
0–4L → ₹0
4–8L → 5% × ₹4,00,000 = ₹20,000
8–12L → 10% × ₹4,00,000 = ₹40,000
12–14.25L → 15% × ₹2,25,000 = ₹33,750
Tax = ₹93,750. Cess 4% = ₹3,750. Total new regime tax: ₹97,500.
Old regime with ₹4L deductions (80C ₹1.5L + 80D ₹25K + HRA ₹1.5L + NPS 80CCD(1B) ₹25K): Standard deduction ₹50,000 (old regime rate). Total deductions = ₹4L + ₹50K = ₹4.5L. Taxable income = ₹15L – ₹4.5L = ₹10.5L.
Old regime tax on ₹10.5L:
0–2.5L → ₹0
2.5–5L → 5% × ₹2.5L = ₹12,500
5–10L → 20% × ₹5L = ₹1,00,000
10–10.5L → 30% × ₹50,000 = ₹15,000
Tax = ₹1,27,500. Cess 4% = ₹5,100. Total old regime tax: ₹1,32,600.
With ₹4L in deductions, Kiran's total deductions exceed the ₹3.75L break-even for ₹15L income. Old regime should win — and the numbers confirm it: ₹1,32,600 vs ₹97,500. Wait. In this case the new regime still wins by ₹35,100. Why? Because ₹4L in total deductions above the standard deduction is close to but not dramatically over the break-even. The gap widens as deductions grow. Had Kiran's HRA been ₹2.5L and she was claiming a full home loan deduction, old regime would pull ahead.
Run this for your own numbers
Compare Both Regimes →What Most People Get Wrong
They ask "which regime is better?" without checking whether their deductions exceed the break-even for their specific income. The answer is always "it depends on your deductions" — and the break-even number tells you exactly which side you are on. Most people pick a regime once, never revisit it, and never notice when their deduction profile changes (new home loan, new insurance, NPS enrollment) and tips them to the other side.
Frequently Asked Questions
Which tax regime is better in India in 2025-26?
It depends on your deductions. New regime wins if total deductions are below the break-even: ₹1.5L at ₹7.5L salary, ₹3.75L at ₹15L salary, ₹5.5L at ₹25L salary. Old regime wins if your actual deductions exceed these thresholds.
What are the new tax regime slabs for 2025-26?
New regime FY2025-26 (post Budget 2025): 0% up to ₹4L, 5% ₹4–8L, 10% ₹8–12L, 15% ₹12–16L, 20% ₹16–20L, 25% ₹20–24L, 30% above ₹24L. Section 87A rebate: zero tax up to ₹12L net income.
What deductions are not available in the new tax regime?
The new regime disallows: Section 80C (₹1.5L), Section 80D (health insurance), HRA exemption (80GG or employer), LTA, standard deduction was ₹75,000 for salaried (available in new regime from FY2024-25), Section 24(b) home loan interest above ₹2L, NPS under 80CCD(1B).
Can I switch between new and old tax regime every year?
Salaried employees with no business income can switch every year when filing ITR. Business income earners can switch only once from old to new — after that, they can only return to old regime once and then must stay in new. Inform your employer at the start of each financial year for TDS purposes.
What is the income tax break-even between old and new regime?
The break-even is the deduction amount at which both regimes give equal tax. Below this, new regime is better. Above this, old regime is better. At ₹12L: break-even ≈ ₹2.75L. At ₹15L: ₹3.75L. At ₹20L: ₹4.75L. At ₹30L: ₹5.5L.
What is the total of your Section 80C, 80D, HRA, and home loan interest deductions — and does that number exceed the break-even threshold for your income?