Best How to Calculate Income Tax on Salary 2026

If you are a salaried employee in India, knowing how to calculate income tax on salary 2026 can help you understand your monthly TDS, annual tax liability and take-home salary. According to guidelines from the Income Tax Department of India, income tax is not simply calculated by applying one percentage to your CTC. You first need to identify your taxable salary, applicable deductions and exemptions, other income, tax regime and applicable tax slabs. For detailed salary planning guides and tax tools, you can also check Wisdom Land.

For Assessment Year (AY) 2026–27, the new tax regime is the default regime for eligible individual taxpayers, while eligible taxpayers can opt for the old tax regime. The two regimes have different slab rates, deductions and exemptions.

This guide explains how to calculate income tax on salary 2026 with simple examples, salary calculations, tax slabs, standard deduction, Section 87A rebate, cess and a new-vs-old-regime comparison.

Table of Contents

How to Calculate Income Tax on Salary 2026: Basic Formula

The basic process is:

**Gross Salary
− Exemptions, where applicable
− Standard Deduction

Other Taxable Income
− Eligible Deductions
= Taxable Income**

After calculating taxable income:

Taxable Income → Apply Tax Slabs → Apply Rebate, if eligible → Add Cess → Final Tax Liability

If TDS has already been deducted by your employer:

Final Tax Liability − TDS Already Paid = Tax Payable / Refund

This is the basic framework you can use for how to calculate income tax on salary 2026.

Step 1: Find Your Gross Salary

The first step in understanding how to calculate income tax on salary 2026 is to identify your annual salary income.

You can usually use:

Form 16
Annual salary statement
Salary slips
Employer payroll records

Your salary package may contain several components, such as:

Salary Component	Example
Basic Salary	₹6,00,000
HRA	₹2,40,000
Special Allowance	₹3,00,000
Other Allowances	₹60,000
Employer Contributions/Benefits	Depends on salary structure
Total CTC	May differ from taxable salary

CTC and taxable salary are not necessarily the same.

Your CTC can include employer contributions and benefits that are treated differently for income-tax purposes.

Therefore, do not simply take your CTC and apply the tax rate.

Step 2: Choose the Tax Regime

Before determining how to calculate income tax on salary 2026 for your situation, check whether you are using:

New Tax Regime
Old Tax Regime

For AY 2026–27, the new regime is the default regime. Eligible taxpayers can opt for the old regime.

For salaried taxpayers without business or professional income, official guidance on the Income Tax e-Filing Portal states that the regime choice can generally be changed each year through the ITR filing process, subject to the applicable rules.

New Tax Regime

The new regime generally offers:

Wider tax slabs
Lower rates at several income levels
₹75,000 standard deduction for eligible salaried employees
Limited deductions and exemptions

Old Tax Regime

The old regime generally provides:

More deductions
More exemptions
HRA exemption, if eligible
Section 80C deductions
Certain other deductions

Therefore, how to calculate income tax on salary 2026 depends heavily on which regime you use.

Step 3: Understand the New Tax Regime Slabs

To understand how to calculate income tax on salary 2026 under the new tax regime for an individual below 60 years, review the AY 2026–27 slabs:

Taxable Income	Tax Rate
Up to ₹4 lakh	Nil
₹4 lakh–₹8 lakh	5%
₹8 lakh–₹12 lakh	10%
₹12 lakh–₹16 lakh	15%
₹16 lakh–₹20 lakh	20%
₹20 lakh–₹24 lakh	25%
Above ₹24 lakh	30%

These are progressive slabs.

For example, if your taxable income is ₹15 lakh, you do not pay 15% on the entire ₹15 lakh.

Each portion is taxed according to its applicable slab.

Step 4: Understand the Old Tax Regime Slabs

When evaluating how to calculate income tax on salary 2026 under the old tax regime, the slabs for individuals below 60 years are:

Taxable Income	Tax Rate
Up to ₹2.5 lakh	Nil
₹2.5 lakh–₹5 lakh	5%
₹5 lakh–₹10 lakh	20%
Above ₹10 lakh	30%

The old regime can be useful to compare if you have substantial eligible deductions and exemptions.

This is why you should calculate your tax under both regimes when appropriate.

Step 5: Apply the Standard Deduction

The standard deduction plays a vital role when learning how to calculate income tax on salary 2026 for salaried employees.

For AY 2026–27:

Tax Regime	Standard Deduction
New Regime	₹75,000
Old Regime	₹50,000

For example, if your eligible salary income is ₹15 lakh and you use the new regime:

₹15,00,000 − ₹75,000 = ₹14,25,000

Your taxable salary before considering other applicable income or adjustments would therefore be ₹14.25 lakh.

The standard deduction is one of the most important numbers to remember when learning how to calculate income tax on salary 2026.

Step 6: Add Other Taxable Income

Another critical step in how to calculate income tax on salary 2026 is adding non-salary taxable income.

You may also have:

Savings-account interest
Fixed-deposit interest
Rental income
Capital gains
Other taxable income

For example:

Salary income: ₹12 lakh
Bank interest: ₹30,000

Your total income may therefore be higher than ₹12 lakh before considering applicable deductions and tax treatment.

Do not calculate your final tax using salary alone if you have other taxable income.

Step 7: Calculate Taxable Income

Here is a practical illustration of how to calculate income tax on salary 2026 for an annual salary of ₹15 lakh.

Assume:

New tax regime
Standard deduction: ₹75,000
No other taxable income
No other adjustment affecting this simplified example

Calculation:

Gross salary = ₹15,00,000

Less standard deduction = ₹75,000

Taxable income = ₹14,25,000

Now apply the new-regime slabs.

How to Calculate Income Tax on Salary 2026: ₹15 Lakh Example

Let’s calculate the tax step by step.

Taxable income:

₹14,25,000

Slab 1

₹0 to ₹4 lakh:

Tax = ₹0

Slab 2

₹4 lakh to ₹8 lakh:

₹4,00,000 × 5%

Tax = ₹20,000

Slab 3

₹8 lakh to ₹12 lakh:

₹4,00,000 × 10%

Tax = ₹40,000

Slab 4

₹12 lakh to ₹14.25 lakh:

₹2,25,000 × 15%

Tax = ₹33,750

Total Income Tax

₹20,000 + ₹40,000 + ₹33,750

= ₹93,750

Add 4% Health and Education Cess

₹93,750 × 4%

= ₹3,750

Approximate Total Tax

₹93,750 + ₹3,750

= ₹97,500

So, under this simplified example, the tax liability is approximately ₹97,500 before considering any other applicable provisions.

This example shows exactly how to calculate income tax on salary 2026 using the new regime.

Section 87A Rebate in 2026

Understanding Section 87A rebate is essential when learning how to calculate income tax on salary 2026 for resident individuals.

For AY 2026–27, under the new regime, an eligible resident individual with total income up to ₹12 lakh can receive a rebate of up to ₹60,000, subject to the applicable conditions.

For example, suppose taxable income is ₹12 lakh.

Tax under the new slabs before rebate:

First ₹4 lakh: Nil
Next ₹4 lakh at 5%: ₹20,000
Next ₹4 lakh at 10%: ₹40,000

Total:

₹60,000

The eligible Section 87A rebate can offset this tax, subject to the applicable rules.

This is why someone with taxable income of ₹12 lakh should not automatically assume that their final tax payable is ₹60,000.

Important: Salary of ₹12 Lakh Is Not Always the Same as Taxable Income

When studying how to calculate income tax on salary 2026, avoiding the misconception that total salary equals taxable income is crucial.

Consider:

Gross salary = ₹12 lakh

Under the new regime, an eligible salaried employee can generally claim the ₹75,000 standard deduction.

Therefore:

₹12,00,000 − ₹75,000 = ₹11,25,000

before considering other applicable income or adjustments.

If the taxpayer meets the Section 87A conditions, the rebate may eliminate the tax liability under the new regime.

This distinction between salary and taxable income is essential when learning how to calculate income tax on salary 2026.

Example: ₹10 Lakh Salary

Here is another practical case showing how to calculate income tax on salary 2026 for a ₹10 lakh salary package:

Annual salary = ₹10,00,000

New-regime standard deduction:

₹75,000

Taxable salary:

₹9,25,000

Tax calculation:

Portion	Rate	Tax
₹0–₹4 lakh	0%	₹0
₹4–₹8 lakh	5%	₹20,000
₹8–₹9.25 lakh	10%	₹12,500
Total		₹32,500

Add 4% cess:

₹1,300

Approximate tax:

₹33,800

This is a simplified calculation before considering any other applicable income, rebate or special-rate income.

Example: ₹20 Lakh Salary

Let’s examine how to calculate income tax on salary 2026 when your annual earnings reach ₹20 lakh:

₹20,00,000

New-regime standard deduction:

₹75,000

Taxable income:

₹19,25,000

The tax is calculated progressively:

Slab	Tax
₹0–₹4 lakh	₹0
₹4–₹8 lakh	₹20,000
₹8–₹12 lakh	₹40,000
₹12–₹16 lakh	₹60,000
₹16–₹19.25 lakh	₹65,000
Tax before cess	₹1,85,000

4% cess:

₹7,400

Approximate total:

₹1,92,400

This is an illustrative calculation.

Old Regime Example for a Salaried Employee

To see how to calculate income tax on salary 2026 using the old regime, consider an employee earning ₹15 lakh:

Gross salary = ₹15 lakh

Under the old regime, the standard deduction is:

₹50,000

So:

₹15,00,000 − ₹50,000 = ₹14,50,000

However, the old regime can allow eligible deductions and exemptions.

For example, depending on eligibility, an employee may have:

Section 80C investments
Health insurance deduction
HRA exemption
Home-loan interest deduction
Other eligible deductions

If these reduce taxable income significantly, the old regime calculation can change substantially.

Therefore, simply comparing the slab rates is not enough.

New Regime vs Old Regime for Salary

Feature	New Regime	Old Regime
Default	Yes	No
Standard deduction	₹75,000	₹50,000
HRA exemption	Generally not available	Available if eligible
Section 80C	Generally unavailable	Available if eligible
Tax slabs	Wider	Narrower
Deductions	Limited	More available
Suitable calculation	Simpler for many employees	More deduction-based

When exploring how to calculate income tax on salary 2026, tax authorities recommend evaluating both regimes to find the maximum savings.

How HRA Affects Salary Tax

Factoring in HRA is an integral part of how to calculate income tax on salary 2026 for employees renting accommodation under the old regime.

Under the old regime, eligible salaried individuals can claim HRA exemption subject to the applicable conditions and calculation limits.

Under the new regime, HRA exemption under Section 10(13A) is not available.

Therefore, employees receiving HRA should check the tax impact before choosing their regime.

How Section 80C Affects Salary Tax

When analyzing how to calculate income tax on salary 2026 under the old tax regime, Section 80C deductions play a major role.

Examples can include certain:

EPF contributions
PPF contributions
Life-insurance premiums
ELSS investments
Eligible tuition fees
Housing-loan principal repayment

The combined limit under Section 80C and specified related provisions is generally ₹1.5 lakh.

These deductions are generally not available under the new regime, except for specifically permitted deductions.

How Health Insurance Can Affect Tax

Another factor to consider in how to calculate income tax on salary 2026 is health insurance premium deductions under Section 80D.

The availability of such deductions is another reason employees with substantial eligible deductions should compare both regimes.

How Home Loan Interest Can Affect Salary Tax

Homeowners looking into how to calculate income tax on salary 2026 must check how home loan interest interest deductions apply across regimes.

Tax regime
Property type
Self-occupied or let-out property
Loan purpose
Applicable provisions

Under the old regime, eligible interest on a qualifying self-occupied property can generally be claimed subject to the applicable limits.

Under the new regime, the deduction for interest on borrowed capital for a self-occupied property is not available under Section 115BAC.

Therefore, homeowners should carefully compare both regimes.

How Monthly TDS Is Connected to Your Income Tax

An important aspect of how to calculate income tax on salary 2026 is understanding how monthly TDS deductions correlate with total liability.

Suppose your estimated annual tax liability is:

₹1,20,000

The employer may deduct approximately:

₹1,20,000 ÷ 12 = ₹10,000 per month

The actual monthly deduction may vary depending on payroll calculations, salary changes, declarations and the timing of deductions.

At the end of the financial year, your Form 16 shows the salary and TDS details reported by the employer.

How to Calculate Income Tax on Salary 2026 Using Form 16

Form 16 serves as one of the best references when figuring out how to calculate income tax on salary 2026 accurately.

Check:

Gross salary
Exempt allowances
Standard deduction
Other deductions
Taxable salary
Total income
Tax payable
TDS deducted

You can compare these figures with your own calculation.

Also check your Annual Information Statement (AIS) and Form 26AS on the official portal for relevant tax information. For more comprehensive financial analysis and tools, visit www.wisdomland.in.

Tax Calculation Checklist for Salaried Employees

Follow this step-by-step checklist to master how to calculate income tax on salary 2026 before filing your tax return:

Step 1

Collect your Form 16.

Step 2

Check your annual salary.

Step 3

Add taxable income from other sources.

Step 4

Select or compare the applicable tax regimes.

Step 5

Apply the standard deduction.

Step 6

Apply eligible exemptions under the selected regime.

Step 7

Apply eligible deductions.

Step 8

Calculate tax according to the slabs.

Step 9

Check Section 87A rebate eligibility.

Step 10

Add 4% Health and Education Cess.

Step 11

Check surcharge, if applicable.

Step 12

Subtract TDS already deducted.

Step 13

Determine whether additional tax is payable or a refund is due.

This is the simplest practical process for understanding how to calculate income tax on salary 2026.

Common Mistakes While Calculating Salary Tax

Mistake 1: Calculating Tax on CTC Instead of Learning How to Calculate Income Tax on Salary 2026 Correctly

CTC and taxable salary are not necessarily identical.

Mistake 2: Applying One Rate to the Entire Salary

Tax is calculated progressively using the applicable slabs.

Mistake 3: Forgetting Standard Deduction

The standard deduction can reduce taxable salary.

Mistake 4: Ignoring Other Income

Bank interest, rental income and other taxable income may increase total income.

Mistake 5: Choosing a Regime Without Comparing

Calculate both regimes where applicable.

Mistake 6: Forgetting Cess

A 4% Health and Education Cess applies to income tax plus surcharge, where applicable.

Mistake 7: Confusing Taxable Income With Salary

The tax slabs apply to taxable income after applicable adjustments, not simply your CTC.

Frequently Asked Questions

How to calculate income tax on salary 2026?

Start with your salary income, subtract applicable exemptions and standard deduction, add other taxable income, apply eligible deductions, calculate tax using the applicable slab rates, check rebate eligibility, add cess and subtract TDS already deducted.

What is the standard deduction for salaried employees in 2026?

For AY 2026–27, the standard deduction is ₹75,000 under the new regime and ₹50,000 under the old regime for eligible salaried taxpayers.

Is the new tax regime compulsory for salaried employees?

No. The new regime is the default, but eligible taxpayers can opt for the old regime under the applicable rules.

How is tax calculated on a ₹12 lakh salary?

Salary and taxable income are different. Under the new regime, an eligible salaried employee can generally claim the ₹75,000 standard deduction. Section 87A may then eliminate the tax for an eligible resident individual whose taxable income is within the applicable ₹12 lakh threshold.

How is tax calculated on a ₹15 lakh salary?

After the ₹75,000 new-regime standard deduction, a simplified example gives taxable income of ₹14.25 lakh. Applying the new slabs gives ₹93,750 tax before 4% cess, or approximately ₹97,500 including cess, assuming no other income, deductions or special-rate income.

How much tax is deducted from salary every month?

It depends on your estimated annual tax liability, salary structure, selected regime, deductions, exemptions and other income. The employer generally calculates annual TDS and deducts it through payroll.

Is ₹7 lakh salary tax-free in 2026?

Under the new regime, an eligible resident individual with total income up to the applicable Section 87A threshold can receive a rebate. The current rules for AY 2026–27 extend the rebate up to ₹12 lakh of total income, subject to conditions.

Which tax regime is better for salaried employees?

There is no universal answer. Employees should calculate their final tax liability under both regimes based on their salary, HRA, investments, insurance, home loan and other eligible deductions.

Can I change my tax regime?

For individuals without business or professional income, the Income Tax Department generally allows the choice to be exercised each year in the ITR, subject to applicable rules.

Conclusion

Learning how to calculate income tax on salary 2026 becomes much easier when you follow a fixed process.

First, identify your actual salary income rather than simply using CTC. Next, determine your tax regime, apply the applicable standard deduction, add other taxable income and claim eligible exemptions or deductions. Then calculate tax using the relevant slabs, apply Section 87A rebate where eligible, add cess and finally subtract the TDS already deducted.

In summary, knowing how to calculate income tax on salary 2026 empowers you to make informed financial choices between tax regimes.

The most important step is to calculate your tax under both regimes before making your final choice, especially if you have HRA, home-loan interest, insurance premiums, investments or other significant deductions.

Use Form 16, AIS and Form 26AS to cross-check your figures before filing your income-tax return.