Old Tax Regime vs New Tax Regime – Why This Choice Matters in 2025-26

Every salaried employee in India faces the same question during tax declaration: old tax regime vs new tax regime; which one actually saves more money?

The answer is not the same for everyone.

Some people save more tax using deductions like 80C, HRA, NPS, and health insurance. Others save more using the lower tax rates in the new regime.

This guide compares the old tax regime vs new tax regime for FY 2025-26 using real salary examples and actual tax calculations.

We will calculate taxes for salaries of:

  • 6 lakh per year
  • 10 lakh per year
  • 15 lakh per year
  • 20 lakh per year

All calculations assume the following common deductions:

  • 80C investment: 1,50,000 rupees
  • Health insurance (80D): 25,000 rupees
  • HRA exemption (metro): 1,20,000 rupees
  • NPS additional deduction 80CCD(1B): 50,000 rupees
  • Standard deduction

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Old Tax Regime vs New Tax Regime Slabs for 2025-26

Understanding the tax slabs is the first step.

Old Tax Regime Slabs (FY 2025-26)

Income RangeTax Rate
Up to 2,50,0000%
2,50,001 – 5,00,0005%
5,00,001 – 10,00,00020%
Above 10,00,00030%

The key feature of the old regime is tax deductions. You can reduce taxable income using sections like 80C, HRA, home loan interest, and NPS.

New Tax Regime Slabs (FY 2025-26)

Income RangeTax Rate
Up to 3,00,0000%
3,00,001 – 6,00,0005%
6,00,001 – 9,00,00010%
9,00,001 – 12,00,00015%
12,00,001 – 15,00,00020%
Above 15,00,00030%

The new regime has lower tax rates, but most deductions are not allowed.

Only a few deductions remain, including:

  • Standard deduction
  • Employer contribution to NPS (80CCD2)

Deductions Used in Our Comparison

For the old tax regime vs new tax regime comparison, we assume these deductions:

DeductionAmount
80C investments1,50,000
HRA exemption1,20,000
NPS 80CCD(1B)50,000
Health insurance 80D25,000
Standard deduction50,000

Total deductions in old regime: 3,95,000 rupees

In the new tax regime, only standard deduction of 50,000 rupees applies.

Old Tax Regime vs New Tax Regime in India for 2025-26

Salary Example 1: 6 Lakh Income

This represents early-career professionals.

Old Regime Calculation

Income: 6,00,000

Less deductions: 3,95,000

Taxable income:
6,00,000 − 3,95,000 = 2,05,000

Tax:

Below 2,50,000 → 0 tax

Final tax: 0 rupees

New Regime Calculation

Income: 6,00,000

Less standard deduction: 50,000

Taxable income: 5,50,000

Tax calculation:

0 – 3,00,000 → 0

3,00,000 – 5,50,000 = 2,50,000

Tax = 5% of 2,50,000

= 12,500 rupees

Result

RegimeTax
Old regime0
New regime12,500

Old regime saves 12,500 rupees per year

Salary Example 2: 10 Lakh Income

This is common for mid-career professionals.

Old Regime Calculation

Income: 10,00,000

Less deductions: 3,95,000

Taxable income:

10,00,000 − 3,95,000 = 6,05,000

Tax:

0 – 2,50,000 → 0

2,50,000 – 5,00,000 → 5% = 12,500

5,00,000 – 6,05,000 = 1,05,000

Tax = 20% of 1,05,000 = 21,000

Total tax = 33,500

New Regime Calculation

Income: 10,00,000

Less standard deduction: 50,000

Taxable income: 9,50,000

Tax:

0 – 3,00,000 → 0

3,00,000 – 6,00,000 = 3,00,000 × 5% = 15,000

6,00,000 – 9,00,000 = 3,00,000 × 10% = 30,000

9,00,000 – 9,50,000 = 50,000 × 15% = 7,500

Total tax = 52,500

Result

RegimeTax
Old regime33,500
New regime52,500

Old regime saves 19,000 rupees

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Salary Example 3: 15 Lakh Income

This represents experienced professionals.

Old Regime Calculation

Income: 15,00,000

Less deductions: 3,95,000

Taxable income:

15,00,000 − 3,95,000 = 11,05,000

Tax:

0 – 2,50,000 → 0

2,50,000 – 5,00,000 → 12,500

5,00,000 – 10,00,000 = 5,00,000 × 20% = 1,00,000

10,00,000 – 11,05,000 = 1,05,000 × 30% = 31,500

Total tax = 1,44,000

New Regime Calculation

Income: 15,00,000

Less standard deduction: 50,000

Taxable income = 14,50,000

Tax:

0 – 3,00,000 → 0

3,00,000 – 6,00,000 = 15,000

6,00,000 – 9,00,000 = 30,000

9,00,000 – 12,00,000 = 45,000

12,00,000 – 14,50,000 = 2,50,000 × 20% = 50,000

Total tax = 1,40,000

Result

RegimeTax
Old regime1,44,000
New regime1,40,000

New regime saves 4,000 rupees

Salary Example 4: 20 Lakh Income

This represents senior management salaries.

Old Regime Calculation

Income: 20,00,000

Less deductions: 3,95,000

Taxable income:

20,00,000 − 3,95,000 = 16,05,000

Tax:

0 – 2,50,000 → 0

2,50,000 – 5,00,000 = 12,500

5,00,000 – 10,00,000 = 1,00,000

10,00,000 – 16,05,000 = 6,05,000 × 30%

Tax = 1,81,500

Total tax = 2,94,000

New Regime Calculation

Income: 20,00,000

Less standard deduction: 50,000

Taxable income = 19,50,000

Tax:

0 – 3,00,000 → 0

3,00,000 – 6,00,000 = 15,000

6,00,000 – 9,00,000 = 30,000

9,00,000 – 12,00,000 = 45,000

12,00,000 – 15,00,000 = 60,000

15,00,000 – 19,50,000 = 4,50,000 × 30% = 1,35,000

Total tax = 2,85,000

Result

RegimeTax
Old regime2,94,000
New regime2,85,000

New regime saves 9,000 rupees

When Old Tax Regime Wins

The old tax regime vs new tax regime comparison clearly shows that the old regime wins when deductions are large.

Old regime usually wins if you have:

Large deductions (3 lakh or more)

Typical examples:

  • HRA exemption above 1 lakh
  • 80C investments of 1.5 lakh
  • NPS investment of 50,000
  • Health insurance premiums
  • Home loan interest deductions

In these situations, taxable income drops significantly, making the old regime cheaper.

When New Tax Regime Wins

The new tax regime works better when deductions are low.

New regime often wins if you:

  • Do not invest in 80C instruments
  • Do not pay rent (no HRA)
  • Do not contribute to NPS
  • Do not have home loan deductions

Young professionals often fall into this category.

Common Mistakes People Make When Choosing a Tax Regime

1. Choosing without calculating

Many people pick the new regime because it sounds simpler.

But a quick calculation can reveal savings of 20,000 to 60,000 rupees per year under the old regime.

2. Ignoring HRA exemption

HRA can reduce taxable income by 1 lakh to 2 lakh rupees per year for metro cities.

Many people forget to include it.

3. Forgetting the NPS additional deduction

Section 80CCD(1B) gives an extra 50,000 rupee deduction beyond 80C.

That alone can save 15,000 rupees in tax for someone in the 30 percent bracket.

4. Assuming the new regime is always better

The government promotes the new regime, but it is not universally cheaper.

The best regime depends entirely on your deductions and salary structure.

Old Tax Regime vs New Tax Regime — How to Decide in 5 Minutes

Use this quick checklist.

Step 1
Add up deductions:

  • 80C investments
  • HRA exemption
  • Health insurance
  • NPS
  • Home loan interest

Step 2
If deductions exceed 3 lakh rupees, the old regime often wins.

Step 3
If deductions are below 1.5 lakh rupees, the new regime often wins.

Step 4
Calculate tax under both regimes.

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Conclusion: Old Tax Regime vs New Tax Regime

The old tax regime vs new tax regime decision depends entirely on your numbers.

For people who invest in 80C, pay rent, buy health insurance, and contribute to NPS, the old regime often saves more tax.

For people with few deductions, the new regime usually wins because of lower tax rates.

The smartest approach is simple: calculate both.

Not sure which regime saves you more?

Tell Vitta your salary, deductions, and rent ; it calculates your exact tax under both regimes in 30 seconds. Free, no sign-up needed.

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Frequently Asked Questions

1. Can I switch between the old and the new tax regimes every year?

Yes. Salaried employees can choose between the old and new tax regimes every financial year when filing their income tax return.

2. Which tax regime is better for a 10 lakh salary?

It depends on deductions. If you claim around 3 lakh to 4 lakh rupees in deductions, the old regime usually saves more tax. Without deductions, the new regime may be cheaper.

3. Is HRA available in the new tax regime?

No. HRA exemption is not available under the new tax regime.

4. What deductions are allowed in the new tax regime 2025?

Most deductions are removed. Only a few remain, including:

  • Standard deduction
  • Employer NPS contribution
  • Certain disability allowances

5. Which regime is better if I have no investments?

If you have no deductions, the new tax regime is usually cheaper because of lower tax rates.

6. Can salaried employees choose the old regime for 2025-26?

Yes. Salaried employees can opt for either regime when filing their tax return.