Old Tax Regime vs New Tax Regime: Which One Should You Choose?

Choosing between the old tax regime vs new tax regime comes down to one thing: whether your actual eligible deductions are large enough to beat the new regime’s lower slab rates. There’s no single answer that works for every income level, and salary alone doesn’t decide it.

The new regime has been the default option for eligible taxpayers since FY 2023-24. It offers lower slab rates but strips away most of the deductions people are used to claiming. The old regime keeps those deductions- HRA, Section 80C, home loan interest, but taxes you at higher rates if you don’t have enough of them.

This guide compares both regimes with real numbers at three common salary levels, walks through which deductions still survive under the new regime, and shows you how to work out your own break-even point instead of relying on a one-size-fits-all rule.

One thing worth flagging before you go further: for the return you’re filing right now for AY 2026-27, Section 115BAC of the Income Tax Act, 1961 is still the operative provision. Once the Income Tax Act, 2025 fully takes over for income earned from April 2026 onward, the new regime moves under Section 202 of the new Act instead. That distinction only matters once you’re filing for Tax Year 2026-27 in 2027, not for your current return.

What Is the New Tax Regime?

The new tax regime, governed by Section 115BAC of the Income Tax Act, 1961, taxes your income at lower slab rates but removes most of the deductions and exemptions that existed under the older system. It was introduced in Budget 2020, applicable from FY 2020-21, and became the default regime from FY 2023-24 onward.

Unless you actively opt for the old regime while filing, this is what applies to you automatically. That catches out a fair number of taxpayers who assume no action means no change.

What Is the Old Tax Regime?

The old tax regime is the system that existed before 2020, with higher slab rates, but access to a wide range of deductions and exemptions: Section 80C investments, HRA, home loan interest, health insurance premiums, and more.

You have to actively choose it each year when filing your return. If your salary structure and expenses are genuinely built around claiming these deductions, this regime can still work out cheaper, but only if the numbers actually support it.

Difference Between New vs Old Tax Regime: Slab Rates

Here are the current slabs for both regimes for individuals below 60 years, for AY 2026-27:

On top of these slabs, the standard deduction for salaried individuals is ₹75,000 under the new regime and ₹50,000 under the old regime. The Section 87A rebate also differs sharply between the two, up to ₹60,000 for income up to ₹12 lakh under the new regime, versus just ₹12,500 for income up to ₹5 lakh under the old regime.

How Have New Regime Slabs Changed Over the Years?

If you’ve read older tax articles, the slab numbers you saw may not match what’s shown above, and that’s not a mistake. The new regime has been revised in nearly every Budget since it launched.

The pattern has been consistent: wider brackets, a higher exemption limit, and a higher standard deduction with nearly every Budget. If you’re comparing your tax outgo against what you paid a year or two ago, part of the drop is the slabs themselves moving, not just your income changing.

What Deductions Do You Lose in the New Regime?

This is usually where the real decision gets made. Here’s what disappears if you pick the new regime:

• Section 80C — investments in PPF, ELSS, life insurance, tax-saving FDs, up to ₹1.5 lakh
• HRA exemption — even if you pay substantial rent
• Home loan interest under Section 24(b) — up to ₹2 lakh, for a self-occupied property
• Section 80D — health insurance premiums for self, family, and parents
• Section 80CCD(1B) — the extra ₹50,000 NPS deduction for your own contribution
• Section 80TTA/80TTB — savings account and senior citizen interest deductions
• Section 80E — education loan interest

If these total well into six figures for you, the old regime deserves a proper calculation. If they add up to very little, the new regime’s lower rates are likely doing you a favour without any effort on your part.

Two Deductions That Actually Got Better in the New Regime

Almost every deduction shrinks or disappears under the new regime, but two survive, and both are actually more generous there than under the old regime. Most comparison articles miss this entirely.

Employer NPS Contribution — Section 80CCD(2)

If your employer contributes to your NPS account, Section 80CCD(2) lets you deduct that contribution, and the limit is higher under the new regime.

Take a private-sector employee with a basic salary plus DA of ₹12 lakh a year. Under the old regime, the employer can contribute a maximum of 10%, ₹1,20,000, and claim the deduction. Under the new regime, that limit rises to 14%, ₹1,68,000. That’s ₹48,000 of additional tax-free retirement contribution every year purely from picking the new regime, assuming your employer’s compensation structure is actually set up to use it. This deduction has no rupee cap, only a percentage cap, so it scales with salary.

Family Pension Deduction — Section 57(iia)

If you receive family pension as a dependent after an employee’s death, you can deduct the lower of one-third of the pension or a fixed amount. That fixed amount is ₹15,000 under the old regime, but ₹25,000 under the new regime, subject to current limits. It’s a smaller benefit than 80CCD(2) in absolute terms, but genuinely more generous under the new regime- the opposite of what most people assume every deduction does there.

What Else Survives Under the New Regime?

Beyond these two, a few other items remain claimable:

• Standard deduction of ₹75,000 for salaried individuals and pensioners
• Gratuity and leave encashment exemptions on retirement, within prescribed limits
• Transport allowance for persons with disabilities
• Home loan interest under Section 24, but only for a let-out property, not a self-occupied one

That home loan distinction trips up a lot of people. The deduction doesn’t vanish entirely in the new regime; it just narrows to rented-out properties.

Which Regime Is Better for a ₹15 Lakh, ₹20 Lakh, or ₹30 Lakh Salary?

These are the exact income levels people search for most, so here’s a direct comparison, starting with the new regime, which stays the same for everyone at a given income regardless of deductions.

These numbers are fixed; they don’t shift based on your investments or rent, because the new regime doesn’t ask for any of that.

The old regime can’t be reduced to a single number at any salary level, since your tax depends entirely on what you actually claim. Here’s a realistic example at ₹15 lakh, assuming a taxpayer claiming common deductions:

At this level, the old regime beats the new regime by roughly ₹14,820. But this only holds if you genuinely have that ₹6.65 lakh in real deductions, rent you actually pay, a loan you actually service. Drop the HRA and home loan interest, and the picture flips right back toward the new regime.

Practical Example With Multiple Income Sources

Salary is rarely the only thing on someone’s return. Here’s how the comparison plays out with a mixed profile: salary plus savings interest, freelance income, and home loan interest:

In this specific case, the new regime still works out cheaper, despite the extra deductions, because the total still isn’t large enough to offset the rate difference at this income level. This is exactly why comparing your own numbers matters more than assuming a home loan automatically tips things toward the old regime.

How Much Deduction Do You Actually Need for the Old Regime to Win?

There’s no single number that applies to every income level, though you’ll see plenty of articles quoting a flat “₹4-4.5 lakh” rule. In practice, the break-even point moves with your income:

At ₹15 lakh, you need roughly ₹6 lakh in genuine deductions before the old regime pulls ahead. At ₹20 lakh, that requirement climbs meaningfully higher. This table is more useful than a single memorised threshold, because the actual crossover point shifts as your income does.

Surcharge: A Difference That Matters at Very High Incomes

For income above ₹50 lakh, both regimes add a surcharge on top of the calculated tax, but the top rate doesn’t apply equally in both.

The new regime caps surcharge at 25%, removing the 37% top slab entirely. For someone earning above ₹5 crore, this alone can be worth lakhs of rupees, regardless of how many deductions they could otherwise claim under the old regime.

Which Regime Needs Less Paperwork at Filing Time?

This rarely decides the tax question on its own, but it does affect how much record-keeping you’re signing up for.

The old regime requires proof for every deduction you claim: investment receipts for 80C, premium confirmations for 80D, rent receipts for HRA, and your bank’s home loan interest certificate. None of this gets submitted with your return upfront, but you need it ready if the department asks, and you need to track it across the year. It’s worth cross-checking these figures against your Form 16 before filing, regardless of which regime you pick.

The new regime needs almost none of this, since there’s nothing to substantiate. If both regimes land you at a similar tax number, the lower admin burden of the new regime can reasonably tip the decision.

Which Regime Is Better If You Have a Home Loan?

A home loan makes the old regime more attractive, but it doesn’t automatically make it the winner. For a self-occupied property, eligible home loan interest can be deducted under the old regime, subject to applicable limits. That benefit generally isn’t available under the new regime for a self-occupied property.

A let-out property is treated differently, which is why “home loan means old regime” oversimplifies things. Compare the eligible interest deduction alongside your other claims and your actual tax under both regimes before deciding.

Which Regime Is Better for Salaried Employees?

For salaried employees without significant HRA claims or a home loan, the new regime tends to win simply because there’s nothing to give up. If your pay structure includes employer NPS contributions, the higher 14% limit under Section 80CCD(2) adds to that advantage.

The calculation shifts for employees who live in rented accommodation in a metro city or who are servicing a home loan on a self-occupied property. In those cases, running both numbers is worth the ten minutes it takes rather than assuming either regime wins by default.

How Do You Actually Switch Between Regimes?

Salaried individuals without business or professional income can choose their regime every year at the time of filing; there’s no lock-in. If your employer deducted TDS assuming one regime, you can still switch when you file, as long as it’s done before the return deadline.

The restriction applies to individuals with business or professional income; once they opt out of the new regime, switching back is allowed only once in their lifetime. Salaried taxpayers without business income don’t face this restriction.

The Income Tax Department’s e-filing portal calculator lets you enter your exact income and deduction figures and compare both regimes side by side, worth running once you know your actual deduction total rather than relying on illustrative numbers like the ones above.

Frequently Asked Questions

Is a ₹12 lakh salary tax-free?

Under the new regime, taxable income up to ₹12 lakh is effectively tax-free due to the Section 87A rebate. For salaried employees, this extends to a ₹12.75 lakh gross salary once the ₹75,000 standard deduction applies. This doesn’t extend to the old regime, where the rebate only covers income up to ₹5 lakh.

What is the main difference between old and new income tax?

The new regime offers lower slab rates but removes most deductions and exemptions. The old regime keeps higher rates but allows deductions like 80C, HRA, and home loan interest. The right choice depends on how much you can genuinely claim under the old regime.

How do I choose between the old and new tax regime?

Add up your genuine deductions, 80C investments, HRA if you pay rent, home loan interest, and health insurance premiums. Compare that total against the break-even figures for your income level, then run your exact numbers through the official calculator before deciding.

Can I switch tax regimes every year?

Yes, if you’re a salaried individual with no business income. You choose your regime fresh each year when filing, regardless of what your employer assumed for TDS purposes.

Does the new tax regime save more for high earners?

For income above ₹5 crore, generally yes, the surcharge cap at 25% versus 37% under the old regime can outweigh whatever deductions the old regime would otherwise offer.

Which regime is better if I have a home loan on a self-occupied house?

This is often where the old regime pulls ahead; the ₹2 lakh interest deduction under Section 24 for a self-occupied property is old-regime only. Combined with 80C and a modest HRA claim, home loan holders frequently cross the deduction threshold where the old regime wins.

Conclusion

There’s no universally correct answer in the new tax regime vs old tax regime debate. The new regime wins for anyone without large, genuine deductions, and it wins by default if you don’t actively choose otherwise. The old regime wins only when those deductions are real and substantial, not aspirational ones created just to save tax.

The break-even point isn’t one fixed number; it moves with your income, roughly ₹5.94 lakh in deductions at ₹15 lakh salary, climbing to around ₹8.5 lakh at ₹30 lakh. Below your relevant threshold, the new regime almost always wins without much calculation needed. Above it, it’s worth running the actual numbers.

If you’re filing for AY 2026-27, you’re working under the current framework. If you’re planning for income earned from April 1, 2026 onward, the Income Tax Act, 2025 and its new Tax Year terminology come into play, worth understanding before that transition affects your filing.

Disclaimer

This article is for general informational purposes only and isn’t tax, legal, or financial advice. Tax calculations shown are illustrative and based on stated assumptions; your actual liability depends on your complete income and deduction profile. Tax laws can change through the Finance Act, CBDT notifications, or judicial rulings, so verify current provisions on the official Income Tax Department website before making a filing decision.