Every salaried Indian now faces the same annual question: old tax regime or new? The choice can swing your tax bill by tens of thousands of rupees, yet most people pick one out of habit or on a colleague's advice rather than doing the maths for their own situation. The right answer depends almost entirely on how many deductions you actually claim. This guide explains how the two regimes differ, works through the break-even point, and gives you a simple way to decide.
The core difference
The new regime offers lower slab rates but strips away almost every deduction and exemption. The old regime keeps higher slab rates but lets you reduce your taxable income with a long list of deductions — Section 80C investments, HRA, home-loan interest, health insurance, and more. In effect, the government is offering a trade: pay a lower rate but on your full income, or a higher rate on a much-reduced income. Which wins depends on how much you can shrink your income under the old regime.
What you give up under the new regime
Choosing the new regime means forgoing most of the tax breaks people rely on:
- Section 80C (up to ₹1.5 lakh) — PPF, ELSS, life insurance premiums, EPF, children's tuition, home-loan principal.
- HRA exemption — often the single largest break for those who pay significant rent.
- Home-loan interest under Section 24(b) (up to ₹2 lakh on a self-occupied house).
- Section 80D health-insurance premiums, 80CCD(1B) extra NPS contribution, education-loan interest, donations, and more.
The new regime does keep the standard deduction for salaried employees and the employer's NPS contribution under 80CCD(2), but the big personal deductions are gone. If you were claiming little of the above anyway, you lose almost nothing; if you were claiming a lot, the old regime's higher rates may still leave you better off.
The break-even logic
Here is the practical way to think about it. The new regime's lower rates are worth a certain rupee amount to you. The old regime's value equals your total deductions multiplied by your marginal tax rate. Whichever is larger wins. Broadly:
- If your total deductions are small (you rent little or nothing, invest little in 80C, have no home loan), the new regime almost always wins.
- If you max out 80C, claim a healthy HRA and pay home-loan interest, the old regime often wins, especially at higher incomes.
- In between, it genuinely depends on the exact numbers — which is why you should calculate both, not guess.
A common rule of thumb: if your combined deductions comfortably exceed roughly ₹3.5–4 lakh, the old regime tends to win; below that, the new regime usually does. But treat that only as a starting hint. The Income Tax Calculator computes your liability under both regimes side by side so you can see the actual difference for your income and deductions.
A worked comparison
Take someone earning ₹12 lakh a year. Under the new regime they pay the lower slab rates on the whole amount (after the standard deduction). Under the old regime they pay higher rates, but if they claim ₹1.5 lakh under 80C, ₹2 lakh of HRA and ₹50,000 of health insurance, their taxable income drops by ₹4 lakh before tax is even applied. At this level of deductions, the old regime frequently comes out cheaper. Now take a colleague on the same salary who rents nothing, has no home loan and invests only ₹50,000 in 80C — for them, the new regime almost certainly wins. Same income, opposite answers, purely because of deductions.
It is not just about the tax
There is a subtler point worth weighing. The old regime effectively rewards you for saving and insuring — the tax break is a nudge to lock money into PPF, ELSS or insurance. Some people value that forced discipline. Others prefer the new regime's simplicity and the freedom to invest wherever they like without chasing deductions. If you would invest in ELSS or PPF anyway, the old regime's deduction is a genuine bonus; if you were only buying a poor insurance policy because of the tax break, the new regime may free you to make better choices.
You can usually switch
Salaried employees without business income can choose afresh every financial year, so your decision is not permanent — you can move to the old regime in a year you take a home loan and back again later. (Those with business income face tighter rules on switching.) It is worth re-running the comparison each year as your rent, loan and investments change, because the regime that won last year may not win this year.
The rebate that changes everything at lower incomes
One feature tilts many people towards the new regime without any deductions at all: the Section 87A rebate, which makes income up to a generous threshold effectively tax-free under the new regime. If your taxable income falls under that ceiling, you may owe no tax at all on the new regime — a level the old regime cannot match unless you claim a large stack of deductions. For younger earners and those on modest salaries who neither rent expensively nor invest heavily yet, this often makes the new regime the obvious pick. As income rises and deductions grow, the calculus shifts, which is exactly why the decision is worth revisiting each year rather than setting once and forgetting.
How to decide in five minutes
Add up everything you can legitimately deduct under the old regime: 80C investments, HRA (use the HRA Exemption Calculator to find the exempt figure), home-loan interest, health insurance, and any extra NPS contribution — the NPS Calculator helps you see the 80CCD(1B) benefit. Then put your income and that total into the Income Tax Calculator and read off the tax under each regime. Finally, confirm the take-home difference with the In-Hand Salary Calculator, which shows what actually reaches your bank account each month under the option you pick. Do this once at the start of the financial year so you can plan your investments and rent declaration around the regime you have chosen, rather than scrambling to justify a choice in March.
Key takeaways
- New regime = lower rates, almost no deductions; old regime = higher rates, many deductions.
- Heavy deductors (full 80C + HRA + home-loan interest) usually win with the old regime; light deductors win with the new.
- Deductions roughly above ₹3.5–4 lakh tend to tip it towards the old regime — but calculate, don't guess.
- Salaried employees can switch each year, so re-check whenever your rent, loan or investments change.